NPPES file of Aug 9, 2026

William G. Koehne, M.D.

Specialist · Salinas, CA

William G. Koehne, M.D. is a specialist with a practice address in Salinas, California, and NPI 1124124540, issued on Sep 15, 2006. Check the license (California G21938, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124124540
Name
William G. Koehne
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
G21938 CA
Self-reported in NPPES; status is on the state search
Practice location
610 E Romie LN, Salinas, CA 93901
Phone
(831) 422-9001
Enumerated
Sep 15, 2006
Record last updated
Dec 6, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(831) 422-0577
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 610 E Romie LN

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

  1. Jeffrey Berman, M.D.Specialist1922104355
  2. Paul Fowler, M.D., PH.D.Pediatrics Physician1508022385
  3. Leslie Galloway, M.D.Pediatrics Physician1851497291
  4. David Greene, M.D.Radiation Oncology Physician1285600403
  5. Lena Malik, M.D.Pediatrics Physician1639119977

Verify William G. Koehne in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license G21938    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
Find the California license search

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99% fewer Medicare Part D claims than the average specialist in 2024

20 Medicare Part D claims, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. William Koehne20
  2. Specialty average1,380

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.

Industry payments in 2024: $101.60

3 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Koehne$101.60
  2. Specialty average$4,760.79

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Specialist providers in California

There are 5,749 specialist records in California.

All 5,749 in California → Every provider in Salinas →

Other specialist records in California

  1. Fatemeh Abbasi, PTVan Nuys, CA1558496760
  2. Erlinda Abcede, M.D.Cudahy, CA1831228675
  3. Maher Abdallah, M.D.Palm Springs, CA1205988011
  4. Farinaz AbdiSan Marcos, CA1063153963
  5. Mai Abe, LESanta Monica, CA1609405158
  6. Hamid Abedi, HEARING AID SPECIALISan Diego, CA1659410744
  7. Jonas AbellaSan Francisco, CA1679760938
  8. Shreedhar Abhyankar, M.D.Indio, CA1861530669
  9. Elaine AbichRiverside, CA1780458927
  10. Mussarat Abidi, MDLadera Ranch, CA1053307769

Common questions

What is William G. Koehne, M.D.'s NPI number?

William G. Koehne, M.D.'s National Provider Identifier (NPI) is 1124124540, issued on Sep 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William G. Koehne, M.D. located?

The NPPES record lists a practice address at 610 E Romie LN, Salinas, CA, 93901. Phone: (831) 422-9001. Providers update this record themselves, so call before visiting.

How can I verify William G. Koehne, M.D.'s license?

NPPES lists California license number G21938, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does William G. Koehne, M.D. prescribe under Medicare Part D?

In 2024, William G. Koehne, M.D. had 20 Medicare Part D claims; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.