Jason K. Hart, M.D.
Family Medicine Physician · Westminster, CA
Jason K. Hart, M.D. is a family medicine physician with a practice address in Westminster, California, and NPI 1780614602, issued on Jul 4, 2006. Check the license (California C55718, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jason K. Hart
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- C55718 CA
23493 OK
Self-reported in NPPES; status is on the state search - Practice location
- 15464 Goldenwest St, Westminster, CA 92683
- Phone
- (714) 891-9008
- Enumerated
- Jul 4, 2006
- Record last updated
- Jan 18, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (714) 897-7949
- Medicaid ID
- 200081910A OK
- Medicare enrollment
- Enrolled (PECOS I20130803000050); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 15464 Goldenwest St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Maria Gillamac, MSN, NP-CFamily Nurse Practitioner1598207110
Verify Jason K. Hart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C55718Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average family medicine physician in 2024
666 Medicare Part D claims for 411 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone146 claims
- Doxycycline Hyclate69 claims
- Cephalexin61 claims
- Azithromycin60 claims
- Nitrofurantoin Mono-Macro47 claims
- Amoxicillin-Clavulanate Potass28 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 76.7 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).
Bills Medicare through one group practice
- Memorialcare Medical FoundationWestminster, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jason K. Hart among 17,133 family medicine physician records in California
Jason K. Hart, M.D. 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 fileYes · 62% of these records are
- Graduated2006 · median 2005 among the 10,652 with a school on file
- Record last updated2018 · 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).
37 family medicine physician records list a practice address in Westminster
They are 37 of the 1,306 NPPES records with a practice address in Westminster, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Westminster → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Thuy Bui, MDWestminster, CA 926831619990587
- Chung Bui, M.D.Westminster, CA 926831427143072
- Dinh Dinh, DOWestminster, CA 926831972600856
- Jamie Lewis, M.D.Westminster, CA 926831073584173
- Diane Nguyen, MDWestminster, CA 926831225065428
- Gary Ohashi, M.D.Westminster, CA 926831417928516
- Trung Pham, M.D.Westminster, CA 926831851355101
- Khanh Pham, MDWestminster, CA 926831437160439
Common questions
What is Jason K. Hart, M.D.'s NPI number?
Jason K. Hart, M.D.'s National Provider Identifier (NPI) is 1780614602, issued on Jul 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jason K. Hart, M.D. located?
The NPPES record lists a practice address at 15464 Goldenwest St, Westminster, CA, 92683. Phone: (714) 891-9008. Providers update this record themselves, so call before visiting.
How can I verify Jason K. Hart, M.D.'s license?
NPPES lists California license number C55718, 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 Jason K. Hart, M.D. prescribe under Medicare Part D?
In 2024, Jason K. Hart, M.D. had 666 Medicare Part D claims for 411 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Jason K. Hart, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.7 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.