NPPES file of Aug 9, 2026

Christopher Paul Gayer, M.D.

Pediatric Surgery Physician · Los Angeles, CA

Christopher Paul Gayer, M.D. is a pediatric surgery physician with a practice address in Los Angeles, California, and NPI 1497963268, issued on May 17, 2007. Check the license (California A121803, 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
1497963268
Name
Christopher Paul Gayer
Credential
M.D.
Primary taxonomy
Pediatric Surgery Physician 2086S0120X
License numbers
A121803 CA
4301082235 MI
Self-reported in NPPES; status is on the state search
Practice location
4650 W Sunset Blvd, Los Angeles, CA 90027
Phone
(323) 361-7097
Enumerated
May 17, 2007
Record last updated
Jan 23, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20130115000311); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 2003
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 4650 W Sunset Blvd

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

  1. Hisham Abdel-Azim, MDPediatric Hematology & Oncology Physician1114018694
  2. Ashraf Abou-Zamzam, MDPediatric Critical Care Medicine Physician1457442931
  3. Karineh Aboulian, MDPediatrics Physician1275774325
  4. Ahmed AbuhamadStudent in an Organized Health Care Education/Training Program1386478915
  5. Joanna Aceto, D.D.S.Pediatric Dentistry1033522578
  6. Etai Adam, M.D.Pediatrics Physician1578811998

Verify Christopher Paul Gayer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A121803
    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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Bills Medicare through one group practice

  1. Childrens Hospital Los Angeles Medical Group IncLos Angeles, CA

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

Christopher Paul Gayer among 142 pediatric surgery physician records in California

Christopher Paul Gayer, M.D. is one of 142 pediatric surgery physician records with a practice address in California. 47% 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 46% of them.

  • NPI issued2007 · 46% of these records are older, 41% newer
  • In a Medicare fileYes · 47% of these records are
  • In the CMS Doctors and Clinicians fileYes · 22% of these records are
  • Graduated2003 · median 2007 among the 31 with a school on file
  • Record last updated2018 · 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 2086S0120X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Surgery Physician providers in California

There are 142 pediatric surgery physician records in California.

The 8 pediatric surgery physician records with the nearest ZIP codes

  1. Dean Anselmo, MDLos Angeles, CA 900271083820716
  2. David Bliss, MDLos Angeles, CA 900271932117462
  3. Tracy Grikscheit, M.D.Los Angeles, CA 900271780777425
  4. Lorraine Kelley-Quon, M.D.Los Angeles, CA 900271598998999
  5. Eugene Kim, M.D.Los Angeles, CA 900271538121140
  6. Stanley Lau, M.D.Los Angeles, CA 900271316110521
  7. G. Mahour, MDLos Angeles, CA 900271841385796
  8. Shin Miyata, M.D.Los Angeles, CA 900271538319959

Common questions

What is Christopher Paul Gayer, M.D.'s NPI number?

Christopher Paul Gayer, M.D.'s National Provider Identifier (NPI) is 1497963268, issued on May 17, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Paul Gayer, M.D. located?

The NPPES record lists a practice address at 4650 W Sunset Blvd, Los Angeles, CA, 90027. Phone: (323) 361-7097. Providers update this record themselves, so call before visiting.

How can I verify Christopher Paul Gayer, M.D.'s license?

NPPES lists California license number A121803, 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.