DoctorsProofNPPES directory · verify at state boards

Internal Medicine in Los Altos, CA

31 verified internal medicine doctors in Los Altos.

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 Medical Board of California

Dr. William Buchholz, MD

Internal Medicine

21 yrs NPPES
NPI 1699774406
851 FREMONT AVE, #104, Los Altos, CA 94024(650) 980-1982
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. Karen Suskiewicz, MD

Internal Medicine

20 yrs NPPES
NPI 1770508533
370 DISTEL CIRCLE, PAMF, Los Altos, CA 94022(650) 254-5200
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. Paul Tang, MD

Internal Medicine

20 yrs NPPES
NPI 1043327737
370 DISTEL CIRCLE, Los Altos, CA 94022(650) 254-5200
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. Patricia Sitnitsky, MD

Internal Medicine

20 yrs NPPES
NPI 1790896231
827 ALTOS OAKS DR STE 4, Los Altos, CA 94024(408) 495-5770
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $582.51 (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.

$582.51

Total received

26

Transactions

7

Paying companies

Top paying companies

ViiV Healthcare Company$259.51
AbbVie Inc.$129.29
Lilly USA, LLC$78.47
Novo Nordisk Inc$48.63
Inspire Medical Systems, Inc.$28.95
IDORSIA PHARMACEUTICALS US INC$19.08

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 89th percentile of that group.

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

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

Dr. Francis Lastufka, MD

Internal Medicine

20 yrs NPPES
NPI 1144312141
370 DISTEL CIRCLE, Los Altos, CA 94022(650) 254-5200
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. Dianne Storey, MD

Internal Medicine

20 yrs NPPES
NPI 1740372259
370 DISTEL CIR, Los Altos, CA 94022(650) 254-5200
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. Ronda Macchello, MD

Internal Medicine

20 yrs NPPES
NPI 1114019742
370 DISEL CIR, Los Altos, CA 95022(650) 254-5200
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. Gina Serraiocco, MD

Internal Medicine

20 yrs NPPES
NPI 1063504553
370 DISTEL CIR, Los Altos, CA 94022(650) 254-5200
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. Ronesh Sinha, MD

Internal Medicine

20 yrs NPPES
NPI 1740360395
370 DISTEL CIR, Los Altos, CA 94022(650) 254-5200
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. Susan Sorensen, MD

Internal Medicine

20 yrs NPPES
NPI 1366523862
851 FREMONT AVE, SUITE 102, Los Altos, CA 94024(650) 941-5028
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. Julia Fong, MD

Internal Medicine

20 yrs NPPES
NPI 1154409746
370 DISTEL CIR, Los Altos, CA 94022(650) 254-5200
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. Janusz Madej, MD

Internal Medicine

20 yrs NPPES
NPI 1376616706
339 S SAN ANTONIO RD STE 1A, Los Altos, CA 94022(650) 529-1669
NPPES public registry
CMS Open Payments· $15.00 (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.

$15.00

Total received

1

Transactions

1

Paying companies

Top paying companies

AbbVie Inc.$15.00

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 64th percentile of that group.

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

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

Dr. Amy Muzaffar, MD

Internal Medicine

20 yrs NPPES
NPI 1124191481
370 DISTEL CIR, Los Altos, CA 94022(650) 254-5200
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. Bhanu-Rekha Bhaskar, MD

Internal Medicine

20 yrs NPPES
NPI 1932273539
370 DISTEL CIR, Los Altos, CA 94022(650) 254-5200
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. Jacqueline Denkabe, MD

Internal Medicine

20 yrs NPPES
NPI 1194883520
371 DISTEL CIRCLE, Los Altos, CA 94022(650) 254-5200
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 Natterstad, MD

Internal Medicine

20 yrs NPPES
NPI 1710048921
1000 FREMONT AVE, SUITE 145, Los Altos, CA 94024(650) 917-1357
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. Laurel Trujillo, MD

Internal Medicine

19 yrs NPPES
NPI 1285791491
370 DISTEL CIR, Los Altos, CA 94022(650) 254-5200
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. Carrie Mousseau, MD

Internal Medicine

19 yrs NPPES
NPI 1447387451
895 SHERWOOD AVE STE 100, Los Altos, CA 94022(650) 888-5790
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. Simon Humphries, MD

Internal Medicine

19 yrs NPPES
NPI 1023149440
811 ALTOS OAKS DR, SUITE 2, Los Altos, CA 94024(650) 917-6920
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $59.97 (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.

$59.97

Total received

3

Transactions

2

Paying companies

Top paying companies

AbbVie Inc.$44.76
Lilly USA, LLC$15.21

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 73th percentile of that group.

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

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

Dr. Marshall Reed, MD

Internal Medicine

19 yrs NPPES
NPI 1992910715
1665 CLAY DR, Los Altos, CA 94024(650) 961-5885
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. Jessica Favreau, MD

Internal Medicine

18 yrs NPPES
NPI 1841450731
1 1ST ST STE 15, Los Altos, CA 94022(650) 668-2558
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. Lailey Naomi Oliva, MD

Internal Medicine

18 yrs NPPES
NPI 1073768727
370 DISTEL CIR, Los Altos, CA 94022(650) 254-5200
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. Charles Tuchinda, MD

Internal Medicine

17 yrs NPPES
NPI 1063641702
1965 LAVER CT, Los Altos, CA 94024(617) 930-6428
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. Tinuola Ademola, MD

Internal Medicine

16 yrs NPPES
NPI 1437472974
370 DISTEL CIR, Los Altos, CA 94022(650) 254-5200
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. Allan Kramer, MD

Internal Medicine

15 yrs NPPES
NPI 1497038624
280 2ND ST, SUITE 100, Los Altos, CA 94022(650) 224-4970
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. Valerie Gurle, MD

Internal Medicine

15 yrs NPPES
NPI 1598049173
895 SHERWOOD AVE, SUITE 100, Los Altos, CA 94022(650) 949-1914
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. Steven Hamman, MD

Internal Medicine

13 yrs NPPES
NPI 1306289004
585 DEODARA DR, Los Altos, CA 94024(650) 903-0843
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. Payvand Milani, MD

Internal Medicine

11 yrs NPPES
NPI 1548647126
370 DISTEL CIR, Los Altos, CA 94022(650) 254-5200
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. Karthikeyan Viswanathan, DO

Internal Medicine

11 yrs NPPES
NPI 1396128336
4546 EL CAMINO REAL STE B7, Los Altos, CA 94022(866) 362-4246
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. Heba Yassin Jioussy, MD

Internal Medicine

8 yrs NPPES
NPI 1750870861
370 DISTEL CIR, Los Altos, CA 94022(650) 254-5200
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. Jessica Madej, MD

Internal Medicine

5 yrs NPPES
NPI 1417537218
339 S SAN ANTONIO RD STE 1A, Los Altos, CA 94022(650) 529-1669
NPPES public registry
CMS Open Payments· $118.86 (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.

$118.86

Total received

2

Transactions

1

Paying companies

Top paying companies

Genzyme Corporation$118.86

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 Jessica Madej do not imply any wrongdoing. Many are meals, education, or research support.

Internal Medicine in Los Altos, CA — Verified | DoctorsProof | DoctorsProof