Sunil Kumar Singh Gulaya, M.D
Addiction Medicine (Psychiatry & Neurology) Physician · Santa Ana, CA
Sunil Kumar Singh Gulaya, M.D is an addiction medicine (psychiatry & neurology) physician with a practice address in Santa Ana, California, and NPI 1477624211, issued on Nov 13, 2006. Check the license (California A37809, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sunil Kumar Singh Gulaya
- Credential
- M.D
- Primary taxonomy
- Addiction Medicine (Psychiatry & Neurology) Physician 2084A0401X
- License number
- A37809 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1654 E 4TH St, Santa Ana, CA 92701
- Phone
- (714) 973-6333
- Enumerated
- Nov 13, 2006
- Record last updated
- Oct 22, 2025
- Fax
- (714) 973-2290
- Entity
- Type 1 · individual
8 nearest addiction medicine (psychiatry & neurology) physician records → All 40 in California → Look up another NPI →
Verify Sunil Kumar Singh Gulaya in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A37809Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average addiction medicine (psychiatry & neurology) physician in 2024
577 Medicare Part D claims for 25 beneficiaries, against an average of 870 among the 264 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Bupropion Hcl Sr57 claims
- Clonazepam48 claims
- Trazodone Hcl40 claims
- Aripiprazole35 claims
- Mirtazapine33 claims
- Quetiapine Fumarate30 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: $189.36
3 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 142 providers of this specialty with any payment received $4,513.66 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.
Sunil Kumar Singh Gulaya among 40 addiction medicine (psychiatry & neurology) physician records in California
Sunil Kumar Singh Gulaya, M.D is one of 40 addiction medicine (psychiatry & neurology) physician records with a practice address in California. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 65% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 43% of these records are
- Record last updated2025 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084A0401X 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 (Psychiatry & Neurology) Physician providers in California
There are 40 addiction medicine (psychiatry & neurology) physician records in California.
All 40 in California → Every provider in Santa Ana → Addiction Medicine (Psychiatry & Neurology) Physician nationwide →
The 8 addiction medicine (psychiatry & neurology) physician records with the nearest ZIP codes
- Deirdre Habermehl, M.D.Huntington Beach, CA 926481023065570
- Pamela Vincent, M.D.Anaheim, CA 928051376544874
- Monica Tone, M.D.Moreno Valley, CA 925531720348659
- Bhavesh TrikamjiOrange, CA 928681295114197
- Tianzhu GeVentura, CA 930031831710292
- Laura Adler, M.D.Palm Desert, CA 922601538420997
- Kimberly Fitzgerald, M.D.San Diego, CA 921101750525267
- Fred Berger, M.D.San Diego, CA 921091508890021
Common questions
What is Sunil Kumar Singh Gulaya, M.D's NPI number?
Sunil Kumar Singh Gulaya, M.D's National Provider Identifier (NPI) is 1477624211, issued on Nov 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sunil Kumar Singh Gulaya, M.D located?
The NPPES record lists a practice address at 1654 E 4TH St, Santa Ana, CA, 92701. Phone: (714) 973-6333. Providers update this record themselves, so call before visiting.
How can I verify Sunil Kumar Singh Gulaya, M.D's license?
NPPES lists California license number A37809, 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 Sunil Kumar Singh Gulaya, M.D prescribe under Medicare Part D?
In 2024, Sunil Kumar Singh Gulaya, M.D had 577 Medicare Part D claims for 25 beneficiaries; the average among addiction medicine (psychiatry & neurology) physician prescribers was 870. 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.