John J. McDiarmid, OD
Optometrist · Murrieta, CA
John J. McDiarmid, OD is an optometrist with a practice address in Murrieta, California, and NPI 1427038959, issued on Jan 19, 2006. Check the license (California OPT9467T, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John J. McDiarmid
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- OPT9467T CA
Self-reported in NPPES; status is on the state search - Practice location
- 25395 Hancock Ave, Murrieta, CA 92562
- Phone
- (951) 696-5388
- Enumerated
- Jan 19, 2006
- Record last updated
- Dec 9, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (951) 696-5391
- Medicaid ID
- SD0094670 CA
- Medicare enrollment
- Enrolled (PECOS I20080715000856); accepts Medicare assignment
- Medical or professional school
- Southern College Of Optometry, 1990
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 25395 Hancock Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sissi Selinger, D.O.Obstetrics & Gynecology Physician1427141977
Verify John J. McDiarmid in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license OPT9467TCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% fewer Medicare Part D claims than the average optometrist in 2024
247 Medicare Part D claims for 172 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.
Most prescribed
- Neomycin-Polymyxin-Dexameth135 claims
- Latanoprost27 claims
- Timolol Maleate16 claims
- Prednisolone Acetate14 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): 90.2 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).
Industry payments in 2024: $1,540.31
11 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 34,453 providers of this specialty with any payment received $769.99 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.
John J. McDiarmid among 8,308 optometrist records in California
John J. McDiarmid, OD is one of 8,308 optometrist records with a practice address in California. 67% 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, 66% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated1990 · median 2008 among the 3,573 with a school on file
- Record last updated2010 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in California
There are 8,308 optometrist records in California.
All 8,308 in California → Every provider in Murrieta → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Jadyn Evans, O.D.Murrieta, CA 925621174836373
- Ryan Evans, O.D.Murrieta, CA 925621548575111
- Alexander Field, O.D.Murrieta, CA 925621356491567
- Jonathan Geller, O.D.Murrieta, CA 925621588741748
- Judy Henning, O.D.Murrieta, CA 925621306025994
- Koe Johnson, O.D,Murrieta, CA 925621538378690
- Tam Le, O.D.Murrieta, CA 925621235268707
- Scott Lewis, O.D.Murrieta, CA 925621376640664
Common questions
What is John J. McDiarmid, OD's NPI number?
John J. McDiarmid, OD's National Provider Identifier (NPI) is 1427038959, issued on Jan 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John J. McDiarmid, OD located?
The NPPES record lists a practice address at 25395 Hancock Ave, Murrieta, CA, 92562. Phone: (951) 696-5388. Providers update this record themselves, so call before visiting.
How can I verify John J. McDiarmid, OD's license?
NPPES lists California license number OPT9467T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does John J. McDiarmid, OD prescribe under Medicare Part D?
In 2024, John J. McDiarmid, OD had 247 Medicare Part D claims for 172 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
What is John J. McDiarmid, OD's MIPS final score?
The 2023 MIPS final score is 90.2 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.