Ian Thomas
Emergency Medicine Physician · Los Angeles, CA
Ian Thomas is an emergency medicine physician with a practice address in Los Angeles, California, and NPI 1437730165, issued on Apr 15, 2021. Check the license (California A198798, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ian Thomas
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A198798 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1200 North State St, Los Angeles, CA 90033
- Phone
- (831) 345-1636
- Enumerated
- Apr 15, 2021
- Record last updated
- Jul 23, 2025
- Medicare enrollment
- Enrolled (PECOS I20250826005068); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 1200 North State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ian Thomas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A198798Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average emergency medicine physician in 2024
31 Medicare Part D claims for 24 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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 one group practice
- Burbank Emergency Medical Group IncBurbank, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ian Thomas among 7,751 emergency medicine physician records in California
Ian Thomas 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 2021, is newer than 92% of them.
- NPI issued2021 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2021 · 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).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
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
- Deirdre Anglin, MDLos Angeles, CA 900331306932025
- Joseph BaltrushesLos Angeles, CA 900331629152178
- Aaron Bright, M.D.Los Angeles, CA 900331023054087
- Christopher Celentano, MDLos Angeles, CA 900331972516417
- Christine DinuzzoLos Angeles, CA 900331952456741
- Marc Eckstein, M.D.Los Angeles, CA 900331922010867
- Sean Henderson, M.D.Los Angeles, CA 900331205887064
- Helen Ho, MDLos Angeles, CA 900331447208962
Common questions
What is Ian Thomas's NPI number?
Ian Thomas's National Provider Identifier (NPI) is 1437730165, issued on Apr 15, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Ian Thomas located?
The NPPES record lists a practice address at 1200 North State St, Los Angeles, CA, 90033. Phone: (831) 345-1636. Providers update this record themselves, so call before visiting.
How can I verify Ian Thomas's license?
NPPES lists California license number A198798, 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 Ian Thomas prescribe under Medicare Part D?
In 2024, Ian Thomas had 31 Medicare Part D claims for 24 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.