Bonnie Gainer, M.D.
Specialist · Newport Beach, CA
Bonnie Gainer, M.D. is a specialist with a practice address in Newport Beach, California, and NPI 1972592319, issued on Oct 18, 2005. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Bonnie Gainer
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- Practice location
- 415 Old Newport Blvd, Newport Beach, CA 92663
- Phone
- (949) 548-9611
- Enumerated
- Oct 18, 2005
- Entity
- Type 1 · individual
Also registered at 415 Old Newport Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Bonnie Gainer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
7% more Medicare Part D claims than the average specialist in 2024
1,637 Medicare Part D claims for 369 beneficiaries, against an average of 1,524 among the 12,477 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Eliquis237 claims
- Metoprolol Succinate135 claims
- Atorvastatin Calcium130 claims
- Amlodipine Besylate121 claims
- Losartan Potassium82 claims
- Clopidogrel66 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 Medicare quality score for 2023: 71.8 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).
63 specialist records list a Newport Beach practice address
They are 63 of the 4,414 NPPES records with a Newport Beach practice address, and 6,640 specialist records in California.
All 63 in Newport Beach → All 6,640 in California → Every provider in Newport Beach →
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Common questions
What is Bonnie Gainer, M.D.'s NPI number?
Bonnie Gainer, M.D.'s National Provider Identifier (NPI) is 1972592319, issued on Oct 18, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Bonnie Gainer, M.D. located?
The NPPES record lists a practice address at 415 Old Newport Blvd, Newport Beach, CA, 92663. Phone: (949) 548-9611. Providers update this record themselves, so call before visiting.
How can I verify Bonnie Gainer, M.D.'s license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Bonnie Gainer, M.D. prescribe under Medicare Part D?
In 2024, Bonnie Gainer, M.D. had 1,637 Medicare Part D claims for 369 beneficiaries; the average among specialist prescribers was 1,524. Part D covers Medicare prescriptions only.
What is Bonnie Gainer, M.D.'s Medicare quality score?
The 2023 MIPS final score is 71.8 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), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.