Stephanie Yin-Man Chan, MD
Internal Medicine Physician · San Jose, CA
Stephanie Yin-Man Chan, MD is an internal medicine physician with a practice address in San Jose, California, and NPI 1639144538, issued on Feb 22, 2006. Check the license (California A60477, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephanie Yin-Man Chan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A60477 CA
Self-reported in NPPES; status is on the state search - Practice location
- 751 S Bascom Ave, San Jose, CA 95128
- Phone
- (408) 885-7742
- Enumerated
- Feb 22, 2006
- Record last updated
- Sep 11, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090213000020); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 1994
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
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Verify Stephanie Yin-Man Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A60477Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
277 Medicare Part D claims for 74 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Furosemide16 claims
- Atorvastatin Calcium15 claims
- Amlodipine Besylate13 claims
- Levothyroxine Sodium11 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 practice group's MIPS final score for 2023 (Medicare payment program): 80.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- County OF Santa ClaraSan Jose, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephanie Yin-Man Chan among 17,696 internal medicine physician records in California
Stephanie Yin-Man Chan, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1994 · median 2004 among the 11,065 with a school on file
- Record last updated2007 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
428 internal medicine physician records list a practice address in San Jose
They are 428 of the 20,925 NPPES records with a practice address in San Jose, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Jose → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alfonso Banuelos, MDSan Jose, CA 951281295720613
- Kimberly Bazar, MDSan Jose, CA 951281447225206
- Andrea Cervenka, MDSan Jose, CA 951281609841774
- Alexander Chyorny, MDSan Jose, CA 951281750358016
- Sarah Cody, MDSan Jose, CA 951281568425437
- Vijaya Dudyala, M.DSan Jose, CA 951281477522589
- Eamonn Dunphy, MDSan Jose, CA 951281003878182
- Jen Eng, MDSan Jose, CA 951281194788422
Common questions
What is Stephanie Yin-Man Chan, MD's NPI number?
Stephanie Yin-Man Chan, MD's National Provider Identifier (NPI) is 1639144538, issued on Feb 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephanie Yin-Man Chan, MD located?
The NPPES record lists a practice address at 751 S Bascom Ave, San Jose, CA, 95128. Phone: (408) 885-7742. Providers update this record themselves, so call before visiting.
How can I verify Stephanie Yin-Man Chan, MD's license?
NPPES lists California license number A60477, 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 Stephanie Yin-Man Chan, MD prescribe under Medicare Part D?
In 2024, Stephanie Yin-Man Chan, MD had 277 Medicare Part D claims for 74 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Stephanie Yin-Man Chan, MD's MIPS final score?
The 2023 MIPS final score is 80.6 of 100, reported for the practice group. 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.