James C. Nelson, M.D.
Geriatric Psychiatry Physician · San Francisco, CA
James C. Nelson, M.D. is a geriatric psychiatry physician with a practice address in San Francisco, California, and NPI 1457370579, issued on Jul 19, 2006. Check the license (California C50956, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James C. Nelson
- Credential
- M.D.
- Primary taxonomy
- Geriatric Psychiatry Physician 2084P0805X
- License number
- C50956 CA
Self-reported in NPPES; status is on the state search - Practice location
- 401 Parnassus Ave, San Francisco, CA 94143
- Phone
- (415) 476-7405
- Enumerated
- Jul 19, 2006
- Record last updated
- Sep 11, 2025
- Fax
- (415) 502-6361
- Medicaid ID
- 00C509560 CA
- Medicare enrollment
- Enrolled (PECOS I20080307000235); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 1968
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest geriatric psychiatry physician records → All 87 in California → Look up another NPI →
Also registered at 401 Parnassus Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bibhav Acharya, M.D.Psychiatry Physician1306137427
- Alexander AcostaStudent in an Organized Health Care Education/Training Program1770161036
- Eric Alcid, M.D., PH.D.Psychiatry Physician1831622174
- Sean Amegadzie, MDPsychiatry Physician1427685403
- Alexandra Apple, PHDClinical Neuropsychologist1033871207
- Regina Armas, LCSW, PH.D.Clinical Psychologist1730118217
Verify James C. Nelson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C50956Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average geriatric psychiatry physician in 2024
28 Medicare Part D claims for 11 beneficiaries, against an average of 1,485 among the 473 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 74.5 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).
Industry payments in 2024: $4,400.00
2 payments; by number, the most common kind was consulting fee; the largest payer was Janssen Research & Development, LLC. The 200 providers of this specialty with any payment received $2,189.26 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
- University OF California San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James C. Nelson among 87 geriatric psychiatry physician records in California
James C. Nelson, M.D. is one of 87 geriatric psychiatry physician records with a practice address in California. 61% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 45% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileYes · 36% of these records are
- Graduated1968 · median 2000 among the 31 with a school on file
- Record last updated2025 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0805X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Psychiatry Physician providers in California
There are 87 geriatric psychiatry physician records in California.
All 87 in California → Every provider in San Francisco → Geriatric Psychiatry Physician nationwide →
The 8 geriatric psychiatry physician records with the nearest ZIP codes
- Mary De May, M.D.San Francisco, CA 941431134163298
- Zeba Hafeez, MDSan Francisco, CA 941431245434547
- Muniza Majoka, M.B.B.S.San Francisco, CA 941431770934168
- Kristine Yaffe, M.D.San Francisco, CA 941211861598559
- Richard Baldwin, M.D.San Francisco, CA 941171851486104
- Cristina Breiner, MDSan Francisco, CA 941121508965229
- Jai McQuilla, MDSan Francisco, CA 941121932789708
- Ryan Pate, MDSan Francisco, CA 941091235633116
Common questions
What is James C. Nelson, M.D.'s NPI number?
James C. Nelson, M.D.'s National Provider Identifier (NPI) is 1457370579, issued on Jul 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James C. Nelson, M.D. located?
The NPPES record lists a practice address at 401 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 476-7405. Providers update this record themselves, so call before visiting.
How can I verify James C. Nelson, M.D.'s license?
NPPES lists California license number C50956, 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 C. Nelson, M.D. prescribe under Medicare Part D?
In 2024, James C. Nelson, M.D. had 28 Medicare Part D claims for 11 beneficiaries; the average among geriatric psychiatry physician prescribers was 1,485. Part D covers Medicare prescriptions only.
What is James C. Nelson, M.D.'s MIPS final score?
The 2023 MIPS final score is 74.5 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.