Stefan J. Chin, MD
Gastroenterology Physician · Daly City, CA
Stefan J. Chin, MD is a gastroenterology physician with a practice address in Daly City, California, and NPI 1891794152, issued on Jul 19, 2005. Check the license (California G83120, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stefan J. Chin
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- G83120 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1850 Sullivan Ave, Daly City, CA 94015
- Phone
- (650) 756-5000
- Enumerated
- Jul 19, 2005
- Record last updated
- Sep 10, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (650) 756-5903
- Medicaid ID
- GR0092050 CA
- Medicare enrollment
- Enrolled (PECOS I20090717000611); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 1993
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 1850 Sullivan Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elsa Agasid, F.N.P.Family Nurse Practitioner1962592360
- Hermenegildo Angeles, MD APCGeriatric Medicine (Family Medicine) Physician1396712303
- Victoria Barber, MDOrthopaedic Surgery Physician1962418533
- Maria Bautista, N.PFamily Nurse Practitioner1801261920
- Kevin Blodgett, PA-CPhysician Assistant1619173010
- Christian Bocobo, M.D.Physical Medicine & Rehabilitation Physician1447212428
Verify Stefan J. Chin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G83120Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average gastroenterology physician in 2024
1,787 Medicare Part D claims for 550 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium658 claims
- Famotidine136 claims
- Plenvu105 claims
- Omeprazole104 claims
- Lubiprostone62 claims
- Dexlansoprazole Dr60 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,609.90
77 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Genesis Healthcare Partners PCBurlingame, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stefan J. Chin among 2,140 gastroenterology physician records in California
Stefan J. Chin, MD is one of 2,140 gastroenterology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1993 · median 2002 among the 1,538 with a school on file
- Record last updated2014 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
All 2,140 in California → Every provider in Daly City → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- John Fisher, M.D.Daly City, CA 940151639179799
- Rowena Garcia Chuapoco, MDDaly City, CA 940151578563789
- Mark Tsuchiyose, M.D.Daly City, CA 940151063412195
- Michael Bender, M.D.Burlingame, CA 940101942391586
- Rani BerryBurlingame, CA 940101821521774
- Tressia Hing, M.D.Burlingame, CA 940101427337815
- Prachi Nene, M.D.Burlingame, CA 940101124481619
- Michael Northcutt, M.D.Burlingame, CA 940101700204443
Common questions
What is Stefan J. Chin, MD's NPI number?
Stefan J. Chin, MD's National Provider Identifier (NPI) is 1891794152, issued on Jul 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Stefan J. Chin, MD located?
The NPPES record lists a practice address at 1850 Sullivan Ave, Daly City, CA, 94015. Phone: (650) 756-5000. Providers update this record themselves, so call before visiting.
How can I verify Stefan J. Chin, MD's license?
NPPES lists California license number G83120, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Stefan J. Chin, MD prescribe under Medicare Part D?
In 2024, Stefan J. Chin, MD had 1,787 Medicare Part D claims for 550 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Stefan J. Chin, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.