NPPES file of Aug 9, 2026

Ryan Roleson

Emergency Medicine Physician · Bakersfield, CA

Ryan Roleson is an emergency medicine physician with a practice address in Bakersfield, California, and NPI 1003057886, issued on Mar 9, 2009. Check the license (California 179566, 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
1003057886
Name
Ryan Roleson
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
179566 CA
D6038966 CA
Self-reported in NPPES; status is on the state search
Practice location
1700 Mount Vernon Ave, Bakersfield, CA 93306
Phone
(661) 326-2168
Enumerated
Mar 9, 2009
Record last updated
Aug 27, 2025
Fax
(661) 326-2165
Medicare enrollment
Enrolled (PECOS I20230215001379); accepts Medicare assignment
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.
Download card Updates feed

Also registered at 1700 Mount Vernon Ave

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

  1. Pernian AbadiPrimary Care Nurse Practitioner1801760814
  2. Mariam AbdelmissehInternal Medicine Physician1902250574
  3. Arian AbdiStudent in an Organized Health Care Education/Training Program1306538087
  4. Ayham Aboeed, M.D.Critical Care Medicine (Internal Medicine) Physician1093969750
  5. Jesslin Abraham, MDStudent in an Organized Health Care Education/Training Program1497333751
  6. Quinn Adams, MDStudent in an Organized Health Care Education/Training Program1790627537

Verify Ryan Roleson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 179566
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

25% fewer Medicare Part D claims than the average emergency medicine physician in 2024

170 Medicare Part D claims for 108 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 22 claims were for opioids.

  1. Ryan Roleson170
  2. Specialty average226

Most prescribed

  1. Hydrocodone-Acetaminophen21 claims
  2. Cephalexin15 claims
  3. Naloxone Hcl14 claims
  4. Albuterol Sulfate Hfa13 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 4 group practices

  1. Faculty Physicians And Surgeons OF LlusmLoma Linda, CA
  2. MD Karan Singh Professional CorpBanning, CA
  3. Northern Inyo Healthcare DistrictBishop, CA
  4. Singh MD A Professional MedicalBarstow, CA

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

Ryan Roleson among 7,751 emergency medicine physician records in California

Ryan Roleson 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 2009, is newer than 54% of them.

  • NPI issued2009 · 54% of these records are older, 42% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2019 · median 2011 among the 4,560 with a school on file
  • Record last updated2025 · 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).

116 emergency medicine physician records list a practice address in Bakersfield

They are 116 of the 11,539 NPPES records with a practice address in Bakersfield, and 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Kieron Barkataki, DOBakersfield, CA 933061619265204
  2. Ireneo Catoera, MDBakersfield, CA 933061639301849
  3. Ian Cook, M.D.Bakersfield, CA 933061659607315
  4. Lev Libet, M.D.Bakersfield, CA 933061063796944
  5. Timothy Lin, DOBakersfield, CA 933061801101365
  6. Anh Vu Nguyen, MDBakersfield, CA 933061801043658
  7. Rachel O'Donnell, MDBakersfield, CA 933061982832036
  8. Jordan Roberts, D.O.Bakersfield, CA 933061164780151

Common questions

What is Ryan Roleson's NPI number?

Ryan Roleson's National Provider Identifier (NPI) is 1003057886, issued on Mar 9, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Ryan Roleson located?

The NPPES record lists a practice address at 1700 Mount Vernon Ave, Bakersfield, CA, 93306. Phone: (661) 326-2168. Providers update this record themselves, so call before visiting.

How can I verify Ryan Roleson's license?

NPPES lists California license number 179566, 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 Ryan Roleson prescribe under Medicare Part D?

In 2024, Ryan Roleson had 170 Medicare Part D claims for 108 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.