James Donald Thomas, MD
Family Medicine Physician · Northridge, CA
James Donald Thomas, MD is a family medicine physician with a practice address in Northridge, California, and NPI 1780912683, issued on Dec 3, 2009. Check the license (California G21216, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Donald Thomas
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G21216 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9900 Balboa Blvd Ste E, Northridge, CA 91325
- Phone
- (818) 701-0017
- Enumerated
- Dec 3, 2009
- Record last updated
- Nov 5, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (818) 701-0073
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify James Donald Thomas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G21216Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average family medicine physician in 2024
561 Medicare Part D claims for 46 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Metformin Hcl47 claims
- Hydrochlorothiazide43 claims
- Benazepril Hcl31 claims
- Ibuprofen28 claims
- Lisinopril27 claims
- Glipizide25 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.
Industry payments in 2024: $54.30
3 payments; by number, the most common kind was food and beverage; the largest payer was Cranial Technologies, Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
James Donald Thomas among 17,133 family medicine physician records in California
James Donald Thomas, 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 2009, is newer than 58% of them.
- NPI issued2009 · 58% of these records are older, 40% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2010 · 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).
55 family medicine physician records list a practice address in Northridge
They are 55 of the 2,598 NPPES records with a practice address in Northridge, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Northridge → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kathy Cairo, M.D.Northridge, CA 913251699878900
- Fausto Cordero, MDNorthridge, CA 913251124052477
- Pamela Davis, MDNorthridge, CA 913251386652196
- Elizabeth Eddy-Bertrand, MDNorthridge, CA 913251669573218
- Susan Hopkins, MDNorthridge, CA 913251700987369
- Viviana Ionescu-Tiba, MDNorthridge, CA 913251588737720
- Christopher Kuhlman, MDNorthridge, CA 913251629170006
- Hwe-Seung Lee, MDNorthridge, CA 913251083717391
Common questions
What is James Donald Thomas, MD's NPI number?
James Donald Thomas, MD's National Provider Identifier (NPI) is 1780912683, issued on Dec 3, 2009. An NPI identifies a provider in billing; it is not a license.
Where is James Donald Thomas, MD located?
The NPPES record lists a practice address at 9900 Balboa Blvd Ste E, Northridge, CA, 91325. Phone: (818) 701-0017. Providers update this record themselves, so call before visiting.
How can I verify James Donald Thomas, MD's license?
NPPES lists California license number G21216, 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 Donald Thomas, MD prescribe under Medicare Part D?
In 2024, James Donald Thomas, MD had 561 Medicare Part D claims for 46 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.