James Constant, MD
Surgery Physician · San Francisco, CA
James Constant, MD is a surgery physician with a practice address in San Francisco, California, and NPI 1457439044, issued on Nov 1, 2006. Check the license (California G73408, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Constant
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- G73408 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2238 Geary Blvd, San Francisco, CA 94115
- Phone
- (415) 833-0125
- Enumerated
- Nov 1, 2006
- Record last updated
- Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20101208000816); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1990
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Also registered at 2238 Geary Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Constant in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G73408Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average surgery physician in 2024
17 Medicare Part D claims for 14 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through one group practice
- Permanente Medical Group IncSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Constant among 3,118 surgery physician records in California
James Constant, MD is one of 3,118 surgery physician records with a practice address in California. 75% 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, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1990 · median 2003 among the 1,901 with a school on file
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in California
There are 3,118 surgery physician records in California.
All 3,118 in California → Every provider in San Francisco → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Paul Cirangle, M.D.San Francisco, CA 941151972695690
- Althaea Greenstone, M.D.San Francisco, CA 941151497889034
- Eun-Sil Hwang, MDSan Francisco, CA 941151154385177
- Charles Jackson, MDSan Francisco, CA 941151861570491
- Jonathan Leichtling, M.D.San Francisco, CA 941151811094915
- Stanley Leong, MDSan Francisco, CA 941151225092596
- Craig Lubbock, MDSan Francisco, CA 941151942388533
- James Macho, M.D.San Francisco, CA 941151326126863
Common questions
What is James Constant, MD's NPI number?
James Constant, MD's National Provider Identifier (NPI) is 1457439044, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Constant, MD located?
The NPPES record lists a practice address at 2238 Geary Blvd, San Francisco, CA, 94115. Phone: (415) 833-0125. Providers update this record themselves, so call before visiting.
How can I verify James Constant, MD's license?
NPPES lists California license number G73408, 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 James Constant, MD prescribe under Medicare Part D?
In 2024, James Constant, MD had 17 Medicare Part D claims for 14 beneficiaries; the average among surgery physician prescribers was 147. 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.