DoctorsProofNPPES directory · verify at state boards

Internal Medicine in Waltham, MA

33 verified internal medicine doctors in Waltham.

Internists specialize in the prevention, diagnosis, and treatment of adult diseases, often coordinating complex or chronic conditions across multiple systems.

NPPES tenure ≠ clinical experience. "Years on NPPES" is time since the physician first registered a National Provider Identifier, not time practicing medicine. Verify current license status with the state medical board.

Verify a license at the Massachusetts Board of Registration in Medicine

Dr. Hadia Tirmizi, MD

Internal Medicine

21 yrs NPPES
NPI 1235124249
231 MOODY STREET, Waltham, MA 02453(781) 899-3334
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Alice Zacarian, MD

Internal Medicine

21 yrs NPPES
NPI 1871580597
355 WAVERLEY OAKS RD, SUITE 200, Waltham, MA 02452(781) 647-6920
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Robert Schainfeld, DO

Internal Medicine

21 yrs NPPES
NPI 1740278118
52 SECOND AVE, STE 2100, Waltham, MA 02451(781) 487-2840
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $335.41 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$335.41

Total received

2

Transactions

2

Paying companies

Top paying companies

Inari Medical, Inc.$185.42
Abbott Laboratories$149.99

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 among those who did). This doctor's total ranks around the 85th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US internal medicine doctors.

Payments to Robert Schainfeld do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Leslie Vensel, MD

Internal Medicine

21 yrs NPPES
NPI 1336139021
40 2ND AVE, SUITE 400, Waltham, MA 02451(781) 487-4350
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Steven Kanner, MD

Internal Medicine

21 yrs NPPES
NPI 1740270289
210 BEAR HILL RD, SUITE 304, Waltham, MA 02451(781) 684-0600
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Christina Gelev, MD

Internal Medicine

21 yrs NPPES
NPI 1518958131
40 SECOND AVE, SUITE 400 MASS GENERAL MEDICAL GROUP, Waltham, MA 02451(781) 487-4350
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Edward Busick, MD

Internal Medicine

21 yrs NPPES
NPI 1467436931
20 HOPE AVENUE, SUITE 211, Waltham, MA 02453(781) 647-0855
NPPES public registry
CMS Open Payments· $5,721 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$5,721

Total received

7

Transactions

1

Paying companies

Top paying companies

Novo Nordisk AS$5,721

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 among those who did). This doctor's total is higher than 97% of that group — among the highest recipients.

Benchmark reflects doctors we've analyzed, not all US internal medicine doctors.

Payments to Edward Busick do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Monica Manandhar, MD

Internal Medicine

20 yrs NPPES
NPI 1639157910
52 SECOND AVE STE 400, Waltham, MA 02451(781) 487-4350
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Allison Mcdonough, MD

Internal Medicine

20 yrs NPPES
NPI 1124091103
52 2ND AVE, SUITE 2000, Waltham, MA 02451(781) 487-4040
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Mark Drews, MD

Internal Medicine

20 yrs NPPES
NPI 1184693616
564 MAIN ST, Waltham, MA 02452(781) 693-3800
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $30.82 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$30.82

Total received

1

Transactions

1

Paying companies

Top paying companies

Exact Sciences Corporation$30.82

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 among those who did). This doctor's total ranks around the 69th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US internal medicine doctors.

Payments to Mark Drews do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Mark Shankman, MD

Internal Medicine

20 yrs NPPES
NPI 1629028709
9 HOPE AVE, Waltham, MA 02453(617) 243-5590
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Jennifer Rosenblum, MD

Internal Medicine

20 yrs NPPES
NPI 1316998107
40 2ND AVE STE 300, MGH WEST, Waltham, MA 02451(617) 643-1201
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Wissam Khoory, MD

Internal Medicine

20 yrs NPPES
NPI 1013962430
20 HOPE AVE, SUITE G03, Waltham, MA 02453(781) 893-4490
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Barry Ehrlich, MD

Internal Medicine

20 yrs NPPES
NPI 1710934047
9 HOPE AVENUE, WALTHAM URGENT CARE CENTER, Waltham, MA 02453(617) 243-5590
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Vanessa Vidal, MD

Internal Medicine

20 yrs NPPES
NPI 1750397196
20 HOPE AVE, SUITE G10, Waltham, MA 02453(781) 647-6920
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Denise Basow, MD

Internal Medicine

20 yrs NPPES
NPI 1609883255
95 SAWYER RD, Waltham, MA 02453(781) 392-2029
NPPES public registry
CMS Open Payments· $114.11 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$114.11

Total received

1

Transactions

1

Paying companies

Top paying companies

Pfizer Inc.$114.11

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 among those who did). This doctor's total ranks around the 77th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US internal medicine doctors.

Payments to Denise Basow do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Maria Ponsillo, MD

Internal Medicine

20 yrs NPPES
NPI 1396850442
200 WEST ST, Waltham, MA 02451(781) 434-4226
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Daniel Gaposchkin, MD

Internal Medicine

20 yrs NPPES
NPI 1821194879
40 SECOND AVE, SUITE #400, Waltham, MA 02154(781) 487-4350
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Thomas Fry, MD

Internal Medicine

20 yrs NPPES
NPI 1588763908
40 2ND AVE, SUITE 400, Waltham, MA 02451(781) 487-4350
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Henry Merola, MD

Internal Medicine

19 yrs NPPES
NPI 1902963986
32 SOUTH ST, SUITE 205, Waltham, MA 02453(781) 894-8200
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $288.16 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$288.16

Total received

15

Transactions

2

Paying companies

Top paying companies

AbbVie Inc.$154.96
AstraZeneca Pharmaceuticals LP$133.20

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 among those who did). This doctor's total ranks around the 84th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US internal medicine doctors.

Payments to Henry Merola do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Linda Pololi, MD

Internal Medicine

19 yrs NPPES
NPI 1790822062
BRANDEIS UNIVERSITY-MS.088, Waltham, MA 02454(781) 736-8135
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. David Margulies, MD

Internal Medicine

19 yrs NPPES
NPI 1942344635
307 WAVERLEY OAKS RD, SUITE 101, Waltham, MA 02452(617) 549-0601
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Nathaniel Gunn, MD

Internal Medicine

19 yrs NPPES
NPI 1912041963
201 JONES RD, 4TH FLOOR, Waltham, MA 02451(781) 693-3786
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Rebecca Connor, MD

Internal Medicine

19 yrs NPPES
NPI 1598880379
95 SAWYER RD, UPTODATE, INC, Waltham, MA 02453(781) 392-2957
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Chuanyun Gao, MD

Internal Medicine

19 yrs NPPES
NPI 1609070267
355 WAVERLEY OAKS RD, SUITE 100, Waltham, MA 02452(781) 314-7600
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $381.23 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$381.23

Total received

17

Transactions

8

Paying companies

Top paying companies

Lilly USA, LLC$125.02
Boehringer Ingelheim Pharmaceuticals, Inc.$72.47
Amgen Inc.$52.78
Xeris Pharmaceuticals, Inc.$40.38
sanofi-aventis U.S. LLC$28.02
MannKind Corporation$24.61

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 among those who did). This doctor's total ranks around the 86th percentile of that group.

Benchmark reflects doctors we've analyzed, not all US internal medicine doctors.

Payments to Chuanyun Gao do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Devasena Balasubramaniam, MD

Internal Medicine

19 yrs NPPES
NPI 1396936498
40 SECOND AVE, MASS GENERAL WEST, Waltham, MA 02451(781) 487-4350
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Philip Reilly, MD

Internal Medicine

19 yrs NPPES
NPI 1871780064
135 BEAVER ST, Waltham, MA 02452(781) 398-0702
NPPES public registry
CMS Open Payments· $1,350 (2023)

Industry Payments (2023)

Reported by drug and device makers to CMS Open Payments. These payments are legal and disclosed — shown as context, not a judgment.

$1,350

Total received

1

Transactions

1

Paying companies

Top paying companies

F. Hoffmann-La Roche AG$1,350

Among the 183,896 internal medicine doctors we've analyzed, about 37% received any industry payment (median $195 among those who did). This doctor's total is higher than 93% of that group — among the highest recipients.

Benchmark reflects doctors we've analyzed, not all US internal medicine doctors.

Payments to Philip Reilly do not imply any wrongdoing. Many are meals, education, or research support.

Dr. Joanna Schwartz, MD

Internal Medicine

18 yrs NPPES
NPI 1316112949
52 SECOND AVENUE SUITE 2000, PRIMARY CARE ASSOCIATES, Waltham, MA 02451(781) 487-4040
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Bard Geesaman, MD

Internal Medicine

17 yrs NPPES
NPI 1790929123
55 BLACK BEAR DR, APARTMENT # 1423, Waltham, MA 02451(617) 529-7111
NPPES public registry
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Daniel Horn, MD

Internal Medicine

16 yrs NPPES
NPI 1780903971
221 CRESCENT ST STE 202, Waltham, MA 02453(866) 849-0692
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Elissa Stecker, MD

Internal Medicine

16 yrs NPPES
NPI 1295056000
355 WAVERLEY OAKS RD, SUITE 200, Waltham, MA 02452(781) 647-6920
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Rachel Ackerman, MD

Internal Medicine

11 yrs NPPES
NPI 1376923094
355 WAVERLY OAKS RD STE 200, Waltham, MA 02452(781) 647-6920
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Dr. Julie Pfeffer, MD

Internal Medicine

6 yrs NPPES
NPI 1083243943
355 WAVERLEY OAKS RD STE 200, Waltham, MA 02452(781) 647-6920
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· No payments in 2023

Industry Payments

No industry payments on record in the 2023 CMS Open Payments data. This doctor received no reported payments from drug or device makers that year.

Internal Medicine in Waltham, MA — Verified | DoctorsProof | DoctorsProof