Ryan Pieterick, MD
Anesthesiology Physician · San Luis Obispo, CA
Ryan Pieterick, MD is an anesthesiology physician with a practice address in San Luis Obispo, California, and NPI 1144751983, issued on Mar 23, 2017. Check the license (California A175733, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ryan Pieterick
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- A175733 CA
DR.0076487 CO
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
- Mar 23, 2017
- Record last updated
- Mar 10, 2026
- Medicare enrollment
- Enrolled (PECOS I20240625002713); accepts Medicare assignment
- Medical or professional school
- University Of Colorado School Of Medicine, Denver, 2017
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 1911 Johnson Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lisa Benepe, MDEmergency Medicine Physician1699234542
- Cristina Diederich, PHARM. D.Pharmacist1093002164
- Peter Dornhofer, M.D.Emergency Medicine Physician1811944010
- Glenn Engelman, D.O.Anesthesiology Physician1417307745
- Jessi Hill, DOEmergency Medicine Physician1700414661
- Eric Jacobsen, M.D.Emergency Medicine Physician1568405603
Verify Ryan Pieterick in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A175733Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2 hospitals and group practices
- Associated Anesthesiologists OF The Central CoastSan Luis Obispo, CA
- 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).
Ryan Pieterick among 7,571 anesthesiology physician records in California
Ryan Pieterick, MD 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 2017, is newer than 83% of them.
- NPI issued2017 · 83% of these records are older, 14% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2017 · median 2006 among the 4,868 with a school on file
- Record last updated2026 · 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.
All 7,571 in California → Every provider in San Luis Obispo → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Glenn Engelman, D.O.San Luis Obispo, CA 934011417307745
- Sundarampillai Jeyanandarajan, M.D.San Luis Obispo, CA 934011326034372
- Grace Kim, M.D.San Luis Obispo, CA 934011740276989
- John Phirman, M.D.San Luis Obispo, CA 934011871589044
- Owen Shea, M.D.San Luis Obispo, CA 934011679569628
- Julie Smelser, M.D.San Luis Obispo, CA 934011568458511
- John Stevenson, M.D.San Luis Obispo, CA 934011184088254
- Amanda Westman, DOSan Luis Obispo, CA 934011568819662
Common questions
What is Ryan Pieterick, MD's NPI number?
Ryan Pieterick, MD's National Provider Identifier (NPI) is 1144751983, issued on Mar 23, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Pieterick, MD 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 Ryan Pieterick, MD's license?
NPPES lists California license number A175733, 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.