NPPES file of Aug 9, 2026

Marybeth Bewersdorf, MD

Pain Medicine (Anesthesiology) Physician · Irvine, CA

Marybeth Bewersdorf, MD is a pain medicine (anesthesiology) physician with a practice address in Irvine, California, and NPI 1427251099, issued on Jun 8, 2007. Check the license (California G64584, 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
1427251099
Name
Marybeth Bewersdorf
Credential
MD
Primary taxonomy
Pain Medicine (Anesthesiology) Physician 207LP2900X
License number
G64584 CA
Self-reported in NPPES; status is on the state search
Practice location
5 Holland Ste 101, Irvine, CA 92618
Phone
(949) 588-2190
Enumerated
Jun 8, 2007
Record last updated
Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(949) 588-2199
Medicare enrollment
Enrolled (PECOS I20070816000332); accepts Medicare assignment
Medical or professional school
Creighton University School Of Medicine, 1980
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

Verify Marybeth Bewersdorf in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G64584
    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.

Bills Medicare through one group practice

  1. Talbert Anesthesia Group IncorporatedHuntington Beach, CA

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

Marybeth Bewersdorf among 536 pain medicine (anesthesiology) physician records in California

Marybeth Bewersdorf, MD is one of 536 pain medicine (anesthesiology) physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 43% of them.

  • NPI issued2007 · 43% of these records are older, 45% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1980 · median 2004 among the 367 with a school on file
  • Record last updated2007 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP2900X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pain Medicine (Anesthesiology) Physician providers in California

There are 536 pain medicine (anesthesiology) physician records in California.

The 8 pain medicine (anesthesiology) physician records with the nearest ZIP codes

  1. Alfred Beshai, M.D.Irvine, CA 926181184834194
  2. Danny Botros, MDIrvine, CA 926181588810816
  3. Paul Choi, M.D.Irvine, CA 926181962652875
  4. Timothy Feldheim, M.D.Irvine, CA 926181013363506
  5. Reza Mahrou, M.D.Irvine, CA 926181255376810
  6. Amir Rafizad, M.D.Irvine, CA 926181073559241
  7. Edouard Rivera, M.D.Irvine, CA 926141093032252
  8. Ariana Nelson, M.D.Irvine, CA 926121083932255

Common questions

What is Marybeth Bewersdorf, MD's NPI number?

Marybeth Bewersdorf, MD's National Provider Identifier (NPI) is 1427251099, issued on Jun 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Marybeth Bewersdorf, MD located?

The NPPES record lists a practice address at 5 Holland Ste 101, Irvine, CA, 92618. Phone: (949) 588-2190. Providers update this record themselves, so call before visiting.

How can I verify Marybeth Bewersdorf, MD's license?

NPPES lists California license number G64584, 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.