DoctorsProofNPPES directory · verify at state boards

General Practice in Upland, CA

4 verified general practice doctors in Upland.

General practice physicians provide broad, first-contact medical care for common conditions across all age groups.

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. Douglas Beseth, MD

General Practice

20 yrs NPPES
NPI 1336259720
999 SAN BERNARDINO RD, Upland, CA 91786(909) 908-5086
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. Marc Shomer, MD

General Practice

20 yrs NPPES
NPI 1457457483
820 N MOUNTAIN AVE STE 102, Upland, CA 91786(909) 981-9800
NPPES public registryAccepts Medicare (2024)
CMS Open Payments· $838.70 (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.

$838.70

Total received

18

Transactions

7

Paying companies

Top paying companies

Pfizer Inc.$403.92
Alcon Vision LLC$144.47
RxSight Inc$112.71
AbbVie Inc.$62.28
Bausch & Lomb Americas Inc.$48.70
Horizon Therapeutics plc$41.52

Among the 13,209 general practice doctors we've analyzed, about 25% received any industry payment (median $145 among those who did). This doctor's total is higher than 95% of that group — among the highest recipients.

Benchmark reflects doctors we've analyzed, not all US general practice doctors.

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

Dr. Wendy Barreto, MD

General Practice

7 yrs NPPES
NPI 1326683582
999 SAN BERNARDINO RD, Upland, CA 91786(909) 781-9042
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. Lisa Brown, MD

General Practice

6 yrs NPPES
NPI 1770116808
440 N MOUNTAIN AVE STE 103, Upland, CA 91786(888) 777-1945
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.

General Practice in Upland, CA — Verified | DoctorsProof | DoctorsProof