Nisha Warikoo, M.D.
Psychiatry Physician · Costa Mesa, CA
Nisha Warikoo, M.D. is a psychiatry physician with a practice address in Costa Mesa, California, and NPI 1306164462, issued on May 13, 2010. Check the license (California A123598, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nisha Warikoo
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A123598 CA
Self-reported in NPPES; status is on the state search - Practice location
- 301 Victoria St, Costa Mesa, CA 92627
- Phone
- (949) 665-0453
- Enumerated
- May 13, 2010
- Record last updated
- Dec 19, 2023
- Medicare enrollment
- Enrolled (PECOS I20150724012429); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 301 Victoria St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eduardo Aguilar Velasquez, LCSWClinical Social Worker1720540412
- Adnan Akhtar, D.O.Internal Medicine Physician1215126396
- Danielle Alguadich, RNPsychiatric/Mental Health Registered Nurse1699300798
- Christian AlvaradoSocial Worker1538702857
- Darrell AndersonRegistered Nurse1992456800
- Debra AquinoLicensed Vocational Nurse1770100364
Verify Nisha Warikoo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A123598Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average psychiatry physician in 2024
79 Medicare Part D claims for 14 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
- Sertraline Hcl13 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: $34.81
1 payment: food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. 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.
Nisha Warikoo among 8,673 psychiatry physician records in California
Nisha Warikoo, M.D. 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 2010, is newer than 60% of them.
- NPI issued2010 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated2003 · median 2005 among the 3,295 with a school on file
- 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 Costa Mesa → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Evagelos Coskinas, M.D.Costa Mesa, CA 926271437382314
- Gary Dylewski, DOCosta Mesa, CA 926271831383207
- Hugo Gomez RuedaCosta Mesa, CA 926271346701455
- Diane Highum, M.D.Costa Mesa, CA 926271396868386
- Harvey Jaffe, M.D.Costa Mesa, CA 926271194751123
- Thomas Phan, M.D.Costa Mesa, CA 926271740716687
- Gail Ross, M.D.Costa Mesa, CA 926271619043361
- Michael Schwartz, D.O.Costa Mesa, CA 926271861584708
Common questions
What is Nisha Warikoo, M.D.'s NPI number?
Nisha Warikoo, M.D.'s National Provider Identifier (NPI) is 1306164462, issued on May 13, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Nisha Warikoo, M.D. located?
The NPPES record lists a practice address at 301 Victoria St, Costa Mesa, CA, 92627. Phone: (949) 665-0453. Providers update this record themselves, so call before visiting.
How can I verify Nisha Warikoo, M.D.'s license?
NPPES lists California license number A123598, 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 Nisha Warikoo, M.D. prescribe under Medicare Part D?
In 2024, Nisha Warikoo, M.D. had 79 Medicare Part D claims for 14 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.