Gregory John Galbreath, M.D.
Family Medicine Physician · La Mirada, CA
Gregory John Galbreath, M.D. is a family medicine physician with a practice address in La Mirada, California, and NPI 1780022327, issued on Jun 5, 2013. Check the license (California A139469, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gregory John Galbreath
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A139469 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12675 LA Mirada Blvd Ste 201, La Mirada, CA 90638
- Phone
- (562) 903-7339
- Enumerated
- Jun 5, 2013
- Record last updated
- Aug 12, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20161003002293); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 12675 LA Mirada Blvd Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Claudia Martin, MDFamily Medicine Physician1821462516
Verify Gregory John Galbreath in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A139469Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% more Medicare Part D claims than the average family medicine physician in 2024
5,704 Medicare Part D claims for 517 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. 71 claims were for opioids.
Most prescribed
- Atorvastatin Calcium499 claims
- Lisinopril340 claims
- Amlodipine Besylate225 claims
- Losartan Potassium209 claims
- Metformin Hcl193 claims
- Levothyroxine Sodium167 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): 76.3 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
- Pih Health PhysiciansLa Mirada, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory John Galbreath among 17,133 family medicine physician records in California
Gregory John Galbreath, 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 2013, is newer than 68% of them.
- NPI issued2013 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2013 · median 2005 among the 10,652 with a school on file
- Record last updated2016 · 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).
11 family medicine physician records list a practice address in La Mirada
They are 11 of the 427 NPPES records with a practice address in La Mirada, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in La Mirada → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Hyejin Jae, M.D.La Mirada, CA 906381851607253
- Eileen Lee, M.D.La Mirada, CA 906381932467347
- Marcus Lum, MDLa Mirada, CA 906381003839242
- Claudia Martin, MDLa Mirada, CA 906381821462516
- Alexander Mendez, M.D.La Mirada, CA 906381255423323
- Nghia Pham, M.D.La Mirada, CA 906381841676491
- Joseph Ravenna, M.D.La Mirada, CA 906381548412869
- Anthony Reyes, M.D.La Mirada, CA 906381447332911
Common questions
What is Gregory John Galbreath, M.D.'s NPI number?
Gregory John Galbreath, M.D.'s National Provider Identifier (NPI) is 1780022327, issued on Jun 5, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Gregory John Galbreath, M.D. located?
The NPPES record lists a practice address at 12675 LA Mirada Blvd Ste 201, La Mirada, CA, 90638. Phone: (562) 903-7339. Providers update this record themselves, so call before visiting.
How can I verify Gregory John Galbreath, M.D.'s license?
NPPES lists California license number A139469, 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 Gregory John Galbreath, M.D. prescribe under Medicare Part D?
In 2024, Gregory John Galbreath, M.D. had 5,704 Medicare Part D claims for 517 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Gregory John Galbreath, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.3 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.