Jason Giles, M.D.
Addiction Medicine (Anesthesiology) Physician · Santa Monica, CA
Jason Giles, M.D. is an addiction medicine (anesthesiology) physician with a practice address in Santa Monica, California, and NPI 1023360542, issued on Oct 8, 2012. Check the license (California A66509, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jason Giles
- Credential
- M.D.
- Primary taxonomy
- Addiction Medicine (Anesthesiology) Physician 207LA0401X
- License number
- A66509 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Wilshire Blvd Ste 700, Santa Monica, CA 90401
- Phone
- (310) 419-8799
- Enumerated
- Oct 8, 2012
- Record last updated
- Apr 11, 2025
- Entity
- Type 1 · individual
8 nearest addiction medicine (anesthesiology) physician records → All 11 in California → Look up another NPI →
Also registered at 100 Wilshire Blvd Ste 700
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Olivia Seibenick, PA-CPhysician Assistant1083036362
Verify Jason Giles in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A66509Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% fewer Medicare Part D claims than the average addiction medicine (anesthesiology) physician in 2024
275 Medicare Part D claims for 30 beneficiaries, against an average of 345 among the 58 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Quetiapine Fumarate32 claims
- Gabapentin21 claims
- Lorazepam15 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.
Industry payments in 2024: $95.92
2 payments; by number, the most common kind was food and beverage; the largest payer was Geistlich Pharma, North America, Inc. The 34 providers of this specialty with any payment received $370.73 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Jason Giles among 11 addiction medicine (anesthesiology) physician records in California
Jason Giles, M.D. is one of 11 addiction medicine (anesthesiology) physician records with a practice address in California. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 64% of them.
- NPI issued2012 · 64% of these records are older, 27% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileNo · 18% of these records are
- Record last updated2025 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LA0401X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Addiction Medicine (Anesthesiology) Physician providers in California
There are 11 addiction medicine (anesthesiology) physician records in California.
All 11 in California → Every provider in Santa Monica → Addiction Medicine (Anesthesiology) Physician nationwide →
The 8 addiction medicine (anesthesiology) physician records with the nearest ZIP codes
- Samuel Shapiro, M.D.Pasadena, CA 911011760619936
- Bee Ramirez, M.D.Fontana, CA 923351639807217
- Brian McLean, M.D.Loma Linda, CA 923541316173354
- Malcolm Wehrle, M.D.Anaheim, CA 928051316968282
- Daniel Bouland, MDOrange, CA 928681720308737
- Christopher FontayneVentura, CA 930011215730056
- Brian Harris, MDMenlo Park, CA 940251396904785
- James Spitler, M.D.Santa Cruz, CA 950621487630109
Common questions
What is Jason Giles, M.D.'s NPI number?
Jason Giles, M.D.'s National Provider Identifier (NPI) is 1023360542, issued on Oct 8, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Jason Giles, M.D. located?
The NPPES record lists a practice address at 100 Wilshire Blvd Ste 700, Santa Monica, CA, 90401. Phone: (310) 419-8799. Providers update this record themselves, so call before visiting.
How can I verify Jason Giles, M.D.'s license?
NPPES lists California license number A66509, 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 Jason Giles, M.D. prescribe under Medicare Part D?
In 2024, Jason Giles, M.D. had 275 Medicare Part D claims for 30 beneficiaries; the average among addiction medicine (anesthesiology) physician prescribers was 345. 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.