Registry data as of Aug 27, 2026

Daniel Heyn, MD

Family Medicine Physician · Fortuna, CA

Daniel Heyn, MD is a family medicine physician with a practice address in Fortuna, California, and NPI 1265000251, issued on Jun 15, 2021. Check the license (California A197739, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1265000251
Name
Daniel Heyn
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A197739 CA
Self-reported in NPPES; status is on the state search
Practice location
3302 Renner Dr, Fortuna, CA 95540
Phone
(707) 725-3318
Enumerated
Jun 15, 2021
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 3302 Renner Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Andrew Billings, FNPPrimary Care Nurse Practitioner1902555675
  2. Johnny Coleman, P.A.-C.Primary Care Nurse Practitioner1174558845
  3. Amber FordCommunity Health Worker1114238797
  4. Philip Olkin, M.D.Family Medicine Physician1508897950

Verify Daniel Heyn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A197739
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

74% fewer Medicare Part D claims than the average family medicine physician in 2024

913 Medicare Part D claims for 176 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. 12 claims were for opioids.

  1. Daniel Heyn913
  2. Specialty average3,519

Most prescribed

  1. Atorvastatin Calcium64 claims
  2. Gabapentin48 claims
  3. Amlodipine Besylate41 claims
  4. Fluticasone Propionate29 claims
  5. Lisinopril29 claims
  6. Losartan Potassium26 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.

One hospital or facility affiliation

  1. St Joseph Health Northern California LLCFortuna, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

13 family medicine physician records list a Fortuna practice address

They are 13 of the 173 NPPES records with a Fortuna practice address, and 16,272 family medicine physician records in California.

Other family medicine physician records in California

  1. Omer Aba-Omer, MDSanta Monica, CA1649702093
  2. Michelle Ababa, MDWilmington, CA1710922513
  3. Anna Tzeitel Abalos, MDRoseville, CA1720200017
  4. Adan Abarca, MDAnaheim, CA1760553689
  5. Vanessa Abarca, DOVentura, CA1952040859
  6. Lorraine Abate, M.D.Sacramento, CA1104840008
  7. Robert Abatecola, MDCastro Valley, CA1669551719
  8. Romeo Abaya, M.D.Cottonwood, CA1598053506
  9. Effiem Abbah, MD, MPHSan Francisco, CA1821185133
  10. Khuzeman Abbasi, MDSanta Rosa, CA1841979952

Common questions

What is Daniel Heyn, MD's NPI number?

Daniel Heyn, MD's National Provider Identifier (NPI) is 1265000251, issued on Jun 15, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Daniel Heyn, MD located?

The NPPES record lists a practice address at 3302 Renner Dr, Fortuna, CA, 95540. Phone: (707) 725-3318. Providers update this record themselves, so call before visiting.

How can I verify Daniel Heyn, MD's license?

NPPES lists California license number A197739, 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 Daniel Heyn, MD prescribe under Medicare Part D?

In 2024, Daniel Heyn, MD had 913 Medicare Part D claims for 176 beneficiaries; the average among family medicine physician prescribers was 3,519. 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.