NPPES file of Aug 9, 2026

John Stevenson, M.D.

Anesthesiology Physician · San Luis Obispo, CA

John Stevenson, M.D. is an anesthesiology physician with a practice address in San Luis Obispo, California, and NPI 1184088254, issued on Apr 5, 2016. Check the license (California A155161, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1184088254
Name
John Stevenson
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
A155161 CA
Self-reported in NPPES; status is on the state search
Practice location
1911 Johnson Ave, San Luis Obispo, CA 93401
Phone
(805) 543-5353
Enumerated
Apr 5, 2016
Record last updated
Jul 27, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200518002724); accepts Medicare assignment
Medical or professional school
University Of California, San Diego School Of Medicine, 2016
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 1911 Johnson Ave

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

  1. Lisa Benepe, MDEmergency Medicine Physician1699234542
  2. Cristina Diederich, PHARM. D.Pharmacist1093002164
  3. Peter Dornhofer, M.D.Emergency Medicine Physician1811944010
  4. Glenn Engelman, D.O.Anesthesiology Physician1417307745
  5. Jessi Hill, DOEmergency Medicine Physician1700414661
  6. Eric Jacobsen, M.D.Emergency Medicine Physician1568405603

Verify John Stevenson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A155161
    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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2 hospitals and group practices

  1. Associated Anesthesiologists OF The Central CoastSan Luis Obispo, CA
  2. Southern Monterey County Memorial HospitalKing City, CA · Critical Access Hospitals

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).

John Stevenson among 7,571 anesthesiology physician records in California

John Stevenson, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 80% of them.

  • NPI issued2016 · 80% of these records are older, 17% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2016 · median 2006 among the 4,868 with a school on file
  • Record last updated2020 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anesthesiology Physician providers in California

There are 7,571 anesthesiology physician records in California.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Glenn Engelman, D.O.San Luis Obispo, CA 934011417307745
  2. Sundarampillai Jeyanandarajan, M.D.San Luis Obispo, CA 934011326034372
  3. Grace Kim, M.D.San Luis Obispo, CA 934011740276989
  4. John Phirman, M.D.San Luis Obispo, CA 934011871589044
  5. Ryan Pieterick, MDSan Luis Obispo, CA 934011144751983
  6. Owen Shea, M.D.San Luis Obispo, CA 934011679569628
  7. Julie Smelser, M.D.San Luis Obispo, CA 934011568458511
  8. Amanda Westman, DOSan Luis Obispo, CA 934011568819662

Common questions

What is John Stevenson, M.D.'s NPI number?

John Stevenson, M.D.'s National Provider Identifier (NPI) is 1184088254, issued on Apr 5, 2016. An NPI identifies a provider in billing; it is not a license.

Where is John Stevenson, M.D. located?

The NPPES record lists a practice address at 1911 Johnson Ave, San Luis Obispo, CA, 93401. Phone: (805) 543-5353. Providers update this record themselves, so call before visiting.

How can I verify John Stevenson, M.D.'s license?

NPPES lists California license number A155161, 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.

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.