Stephen Yee, MD
Hematology & Oncology Physician · Oakland, CA
Stephen Yee, MD is a hematology & oncology physician with a practice address in Oakland, California, and NPI 1528078185, issued on Aug 8, 2006. Check the license (California G42840, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephen Yee
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- G42840 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1411 East 31St Street, Oakland, CA 94602
- Phone
- (510) 437-4323
- Enumerated
- Aug 8, 2006
- Record last updated
- Feb 22, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (510) 437-5042
- Medicaid ID
- 00G428400 CA
- Medicare enrollment
- Enrolled (PECOS I20080717000743); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 1979
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 1411 East 31St Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lindsey Deputy, RN, MS, CNSOncology Registered Nurse1215588868
- Helen Driscoll, MDInternal Medicine Physician1720168230
- Ahmed Elattma, MDStudent in an Organized Health Care Education/Training Program1750141776
- Joshua ElyOral and Maxillofacial Surgery (Dentist)1528430121
- Linda Engelstad, MDAllergy & Immunology (Internal Medicine) Physician1710997374
- Dena Fisher, MSWClinical Social Worker1962685156
Verify Stephen Yee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G42840Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
256 Medicare Part D claims for 33 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Letrozole34 claims
- Ondansetron Hcl25 claims
- Anagrelide Hcl15 claims
- Prochlorperazine Maleate15 claims
- Lenalidomide13 claims
- Revlimid13 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): 91 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
- Alameda Health SystemOakland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Yee among 1,583 hematology & oncology physician records in California
Stephen Yee, MD is one of 1,583 hematology & oncology 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 54% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1979 · median 2003 among the 1,124 with a school on file
- Record last updated2012 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Oakland → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Karina D'Souza, MD, MPHOakland, CA 946021427474998
- An Uche, M.DOakland, CA 946021982014981
- Aditi Choudhry, M.D.Walnut Creek, CA 945981427218908
- Aruna Gavini, MDWalnut Creek, CA 945981942439021
- Ammara Gill, MDWalnut Creek, CA 945981447482096
- Jewel Johl, M.D.Walnut Creek, CA 945981407852858
- Jose Ochoa-Bayona, M.D.Walnut Creek, CA 945981669475158
- Jonathan PaiWalnut Creek, CA 945981285196105
Common questions
What is Stephen Yee, MD's NPI number?
Stephen Yee, MD's National Provider Identifier (NPI) is 1528078185, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Yee, MD located?
The NPPES record lists a practice address at 1411 East 31St Street, Oakland, CA, 94602. Phone: (510) 437-4323. Providers update this record themselves, so call before visiting.
How can I verify Stephen Yee, MD's license?
NPPES lists California license number G42840, 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 Stephen Yee, MD prescribe under Medicare Part D?
In 2024, Stephen Yee, MD had 256 Medicare Part D claims for 33 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Stephen Yee, MD's MIPS final score?
The 2023 MIPS final score is 91 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.