Stephen Hart, MD
Family Medicine Physician · Berkeley, CA
Stephen Hart, MD is a family medicine physician with a practice address in Berkeley, California, and NPI 1639258692, issued on Nov 2, 2006. Check the license (California A42134, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephen Hart
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A42134 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2999 Regent St, Berkeley, CA 94705
- Phone
- (510) 883-9700
- Enumerated
- Nov 2, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (510) 883-1323
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 2999 Regent St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Stephen Hart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A42134Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
45 Medicare Part D claims for 11 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amlodipine Besylate11 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.
Stephen Hart among 17,133 family medicine physician records in California
Stephen Hart, MD is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2007 · 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 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
77 family medicine physician records list a practice address in Berkeley
They are 77 of the 4,898 NPPES records with a practice address in Berkeley, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Berkeley → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Gordon Benner, M.D.Berkeley, CA 947051861436529
- Christine Brozowski, MDBerkeley, CA 947051376696120
- James Eichel, MDBerkeley, CA 947051811956469
- Roxanne Fiscella, MDBerkeley, CA 947051598866170
- Donna Jacobsen, D. O.Berkeley, CA 947051801997051
- Natalie Karishev, MDBerkeley, CA 947051891800124
- Shannon McCune, M.D.Berkeley, CA 947051437236163
- Charles McLaughlin, M.D.Berkeley, CA 947051184668840
Common questions
What is Stephen Hart, MD's NPI number?
Stephen Hart, MD's National Provider Identifier (NPI) is 1639258692, issued on Nov 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Hart, MD located?
The NPPES record lists a practice address at 2999 Regent St, Berkeley, CA, 94705. Phone: (510) 883-9700. Providers update this record themselves, so call before visiting.
How can I verify Stephen Hart, MD's license?
NPPES lists California license number A42134, 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 Hart, MD prescribe under Medicare Part D?
In 2024, Stephen Hart, MD had 45 Medicare Part D claims for 11 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.