Mark Anantiyo
Psychiatry Physician · Pomona, CA
Mark Anantiyo is a psychiatry physician with a practice address in Pomona, California, and NPI 1245958453, issued on Aug 15, 2022. Check the license (California PA61663, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Anantiyo
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- PA61663 CA
Self-reported in NPPES; status is on the state search - Practice location
- 309 E 2ND St, Pomona, CA 91766
- Phone
- (909) 623-6111
- Enumerated
- Aug 15, 2022
- Record last updated
- May 1, 2023
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 309 E 2ND St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Anantiyo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license PA61663Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average psychiatry physician in 2024
150 Medicare Part D claims for 25 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Clonazepam12 claims
- Diazepam12 claims
- Gabapentin12 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: $156.15
7 payments; by number, the most common kind was food and beverage; the largest payer was Vertical Pharmaceuticals, LLC. The 13,693 providers of this specialty with any payment received $4,954.93 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.
Mark Anantiyo among 8,673 psychiatry physician records in California
Mark Anantiyo is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 93% of them.
- NPI issued2022 · 93% of these records are older, 4% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2023 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Pomona → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Paul Brown, M.D.Diamond Bar, CA 917651437361789
- Pablo Davanzo, MDPomona, CA 917671598892473
- Gurjit Dhaliwal, M.D.Pomona, CA 917671417026444
- Mariam Garuba, M.D.Pomona, CA 917671275748261
- Sateesh Gunda, M.D.Diamond Bar, CA 917651134407844
- Adel Hanna, MDDiamond Bar, CA 917651194868224
- Zachary Herzfeldt, M.D.Diamond Bar, CA 917651205215936
- Wayne Houpt, MDPomona, CA 917671396796058
Common questions
What is Mark Anantiyo's NPI number?
Mark Anantiyo's National Provider Identifier (NPI) is 1245958453, issued on Aug 15, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Mark Anantiyo located?
The NPPES record lists a practice address at 309 E 2ND St, Pomona, CA, 91766. Phone: (909) 623-6111. Providers update this record themselves, so call before visiting.
How can I verify Mark Anantiyo's license?
NPPES lists California license number PA61663, 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 Mark Anantiyo prescribe under Medicare Part D?
In 2024, Mark Anantiyo had 150 Medicare Part D claims for 25 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.