John A. Hatherley, M.D.
Emergency Medicine Physician · Los Angeles, CA
John A. Hatherley, M.D. is an emergency medicine physician with a practice address in Los Angeles, California, and NPI 1164476883, issued on May 19, 2006. Check the license (California G52940, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John A. Hatherley
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- G52940 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1225 Wilshire Boulevard, Los Angeles, CA 90017
- Phone
- (213) 977-2423
- Enumerated
- May 19, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (213) 202-7028
- Medicaid ID
- 00G529400 CA
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 1225 Wilshire Boulevard
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jack Fuller, PA-CPhysician Assistant1376596668
- Brian Harris, M.D.Emergency Medicine Physician1285687574
- Melvin Jackson, MDEmergency Medicine Physician1922049295
- Robert Kerns, M.D.Emergency Medicine Physician1144274168
- Robert Kloner, M.D.Specialist1952477499
- Nancy Kuhn, M.D.Emergency Medicine Physician1457305344
Verify John A. Hatherley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G52940Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John A. Hatherley among 7,751 emergency medicine physician records in California
John A. Hatherley, M.D. 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 not. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 60% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2026 · 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).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,751 in California → Every provider in Los Angeles → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Elisa Aponte, M.D.Los Angeles, CA 900171518134634
- Won Ki Chae, MDLos Angeles, CA 900171376789701
- Pao Chiu, M.D.Los Angeles, CA 900171285686592
- Carl Chudnofsky, MDLos Angeles, CA 900171811958556
- Brian Harris, M.D.Los Angeles, CA 900171285687574
- Melvin Jackson, MDLos Angeles, CA 900171922049295
- Marynell Jelinek, M.D.Los Angeles, CA 900171487687828
- Robert Kerns, M.D.Los Angeles, CA 900171144274168
Common questions
What is John A. Hatherley, M.D.'s NPI number?
John A. Hatherley, M.D.'s National Provider Identifier (NPI) is 1164476883, issued on May 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John A. Hatherley, M.D. located?
The NPPES record lists a practice address at 1225 Wilshire Boulevard, Los Angeles, CA, 90017. Phone: (213) 977-2423. Providers update this record themselves, so call before visiting.
How can I verify John A. Hatherley, M.D.'s license?
NPPES lists California license number G52940, 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. 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.