James Daniel Byrne, MD
Maternal & Fetal Medicine Physician · San Jose, CA
James Daniel Byrne, MD is a maternal & fetal medicine physician with a practice address in San Jose, California, and NPI 1831134097, issued on Jun 19, 2006. Check the license (California G74780, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Daniel Byrne
- Credential
- MD
- Primary taxonomy
- Maternal & Fetal Medicine Physician 207VM0101X
- License number
- G74780 CA
Self-reported in NPPES; status is on the state search - Practice location
- 751 S Bascom Ave, San Jose, CA 95128
- Phone
- (408) 885-5000
- Enumerated
- Jun 19, 2006
- Record last updated
- Sep 11, 2025
- Medicaid ID
- 00G747800 CA
- Entity
- Type 1 · individual
8 nearest maternal & fetal medicine physician records → All 343 in California → Look up another NPI →
Also registered at 751 S Bascom Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Abolghasem Abdoli, MDNeonatal-Perinatal Medicine Physician1790757441
- Erik Abernethy, PAPhysician Assistant1649577354
- Christopher Abrinko, RESIDENT PHYSICIANStudent in an Organized Health Care Education/Training Program1649017328
- Cherine Abu-Eid, MDAnesthesiology Physician1033173307
- Pallavi AcharyaClinical Social Worker1154807873
Verify James Daniel Byrne in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G74780Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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).
James Daniel Byrne among 343 maternal & fetal medicine physician records in California
James Daniel Byrne, MD is one of 343 maternal & fetal medicine 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 6% of them.
- NPI issued2006 · 6% of these records are older, 52% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2025 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VM0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Maternal & Fetal Medicine Physician providers in California
There are 343 maternal & fetal medicine physician records in California.
All 343 in California → Every provider in San Jose → Maternal & Fetal Medicine Physician nationwide →
The 8 maternal & fetal medicine physician records with the nearest ZIP codes
- Cheryl Albuquerque, M.D.San Jose, CA 951281093863938
- Jin Chang-Yu, D.O.San Jose, CA 951281104016781
- Roger Spencer, MDSan Jose, CA 951281861423121
- Odul Amburgey, M.D.San Jose, CA 951241619196466
- Andrew Chao, M.D.Stockton, CA 952041972578896
- Sharon Hood, MDStockton, CA 952041548472962
- Luckey Reed, M.D.Stockton, CA 952041467696963
- Stacy Yadava, M.D.Stockton, CA 952041154689677
Common questions
What is James Daniel Byrne, MD's NPI number?
James Daniel Byrne, MD's National Provider Identifier (NPI) is 1831134097, issued on Jun 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James Daniel Byrne, MD located?
The NPPES record lists a practice address at 751 S Bascom Ave, San Jose, CA, 95128. Phone: (408) 885-5000. Providers update this record themselves, so call before visiting.
How can I verify James Daniel Byrne, MD's license?
NPPES lists California license number G74780, 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.
What is James Daniel Byrne, 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.