Donald Allyn, M.D.
Specialist · Hanford, CA
Donald Allyn, M.D. is a specialist with a practice address in Hanford, California, and NPI 1558302893, issued on Jun 9, 2006. Check the license (California G21696, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Donald Allyn
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- G21696 CA
Self-reported in NPPES; status is on the state search - Practice location
- 125 Mall Dr., Hanford, CA 93230
- Phone
- (559) 584-3000
- Enumerated
- Jun 9, 2006
- Entity
- Type 1 · individual
Verify Donald Allyn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license G21696Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
71% fewer Medicare Part D claims than the average specialist in 2024
441 Medicare Part D claims for 97 beneficiaries, against an average of 1,524 among the 12,477 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims. 125 claims were for opioids.
Most prescribed
- Ibuprofen112 claims
- Cephalexin92 claims
- Hydromorphone Hcl49 claims
- Hydrocodone-Acetaminophen37 claims
- Naloxone Hcl32 claims
- Ondansetron Odt29 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.
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There are 6,640 specialist records in California.
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Common questions
What is Donald Allyn, M.D.'s NPI number?
Donald Allyn, M.D.'s National Provider Identifier (NPI) is 1558302893, issued on Jun 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Donald Allyn, M.D. located?
The NPPES record lists a practice address at 125 Mall Dr., Hanford, CA, 93230. Phone: (559) 584-3000. Providers update this record themselves, so call before visiting.
How can I verify Donald Allyn, M.D.'s license?
NPPES lists California license number G21696, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Donald Allyn, M.D. prescribe under Medicare Part D?
In 2024, Donald Allyn, M.D. had 441 Medicare Part D claims for 97 beneficiaries; the average among specialist prescribers was 1,524. Part D covers Medicare prescriptions only.
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.