NPPES file of Aug 9, 2026

William E. Buys, DO

Emergency Medicine Physician · Templeton, CA

William E. Buys, DO is an emergency medicine physician with a practice address in Templeton, California, and NPI 1639127376, issued on May 5, 2006. Check the license (California 20A8118, as entered in NPPES) on the Medical Board of California; 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
1639127376
Name
William E. Buys
Credential
DO
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
20A8118 CA
Self-reported in NPPES; status is on the state search
Practice location
1100 Las Tablas RD, Templeton, CA 93465
Phone
(805) 546-7650
Enumerated
May 5, 2006
Record last updated
May 24, 2010 (not updated in 16 years: call before relying on the address or phone)
Medicaid ID
00AX81180 CA
Medicare enrollment
Enrolled (PECOS I20100420000536); accepts Medicare assignment
Medical or professional school
Des Moines University Of Osteopathic Medicine And Health Sciences, 1998
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1100 Las Tablas RD

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

  1. Monica BasultoRegistered Nurse First Assistant1871307447
  2. Steven Benaron, MDEmergency Medicine Physician1366400657
  3. Scott Bisheff, MDEmergency Medicine Physician1871541748
  4. Raul Easton-Carr, M.D.Emergency Medicine Physician1144494642
  5. Gregory Frye, MDEmergency Medicine Physician1487602348
  6. Thomas Hale, MDEmergency Medicine Physician1538117502

Verify William E. Buys in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A8118
    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.

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3% fewer Medicare Part D claims than the average emergency medicine physician in 2024

219 Medicare Part D claims for 168 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 42 claims were for opioids.

  1. William Buys219
  2. Specialty average226

Most prescribed

  1. Hydrocodone-Acetaminophen34 claims
  2. Cephalexin31 claims
  3. Prednisone13 claims
  4. Amoxicillin-Clavulanate Potass12 claims
  5. Ondansetron Odt12 claims
  6. Doxycycline Hyclate11 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.

Bills Medicare through one group practice

  1. Central Coast Emergency PhysiciansSan Luis Obispo, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

William E. Buys among 7,751 emergency medicine physician records in California

William E. Buys, DO is one of 7,751 emergency medicine physician records with a practice address in California. 81% 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 60% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1998 · median 2011 among the 4,560 with a school on file
  • Record last updated2010 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

15 emergency medicine physician records list a practice address in Templeton

They are 15 of the 326 NPPES records with a practice address in Templeton, and 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Steven Benaron, MDTempleton, CA 934651366400657
  2. Scott Bisheff, MDTempleton, CA 934651871541748
  3. Dugald Chisholm, M.D.Templeton, CA 934651912103284
  4. Gregory Frye, MDTempleton, CA 934651487602348
  5. Thomas Hale, MDTempleton, CA 934651538117502
  6. George Hansen, MDTempleton, CA 934651801844758
  7. Brian Koch, MDTempleton, CA 934651881652063
  8. Robert Latta, M.D.Templeton, CA 934651679632178

Common questions

What is William E. Buys, DO's NPI number?

William E. Buys, DO's National Provider Identifier (NPI) is 1639127376, issued on May 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William E. Buys, DO located?

The NPPES record lists a practice address at 1100 Las Tablas RD, Templeton, CA, 93465. Phone: (805) 546-7650. Providers update this record themselves, so call before visiting.

How can I verify William E. Buys, DO's license?

NPPES lists California license number 20A8118, 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 William E. Buys, DO prescribe under Medicare Part D?

In 2024, William E. Buys, DO had 219 Medicare Part D claims for 168 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.

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.