Thomas J. Grayden, MD
Psychiatry Physician · Costa Mesa, CA
Thomas J. Grayden, MD is a psychiatry physician with a practice address in Costa Mesa, California, and NPI 1700942117, issued on Dec 29, 2006. Check the license (California G50401, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thomas J. Grayden
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- G50401 CA
67316 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 3151 Airway Ave Ste G1, Costa Mesa, CA 92626
- Phone
- (714) 545-5550
- Enumerated
- Dec 29, 2006
- Record last updated
- Aug 15, 2025
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 3151 Airway Ave Ste G1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shiva Ahmadi, FNPPsychiatric/Mental Health Nurse Practitioner1356873715
- Alejandro Alva, M.D.Psychiatry Physician1801816764
- Tyler Burns, PA-C, CAQ-PSYCHPhysician Assistant1609654755
- Borhan DarmalPsychiatry Physician1679065536
- Deborah Du, RPA-CPsychiatric/Mental Health Clinical Nurse Specialist1992054456
- Victoria Heglar, PA-CPhysician Assistant1407468515
Verify Thomas J. Grayden in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G50401Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average psychiatry physician in 2024
43 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.
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: $153.25
3 payments; by number, the most common kind was 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.
Thomas J. Grayden among 8,673 psychiatry physician records in California
Thomas J. Grayden, MD 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 67% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2025 · 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
- Tina Allee, M.D.Costa Mesa, CA 926261386960904
- Alejandro Alva, M.D.Costa Mesa, CA 926261801816764
- Daniel Amen, M.D.Costa Mesa, CA 926261831121375
- Britton Arey, MDCosta Mesa, CA 926261295833374
- Robert Bota, MDCosta Mesa, CA 926261407990773
- Karen Chen, M.D.Costa Mesa, CA 926261598023103
- Borhan DarmalCosta Mesa, CA 926261679065536
- Daniel Emina, M.D.Costa Mesa, CA 926261861633786
Common questions
What is Thomas J. Grayden, MD's NPI number?
Thomas J. Grayden, MD's National Provider Identifier (NPI) is 1700942117, issued on Dec 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas J. Grayden, MD located?
The NPPES record lists a practice address at 3151 Airway Ave Ste G1, Costa Mesa, CA, 92626. Phone: (714) 545-5550. Providers update this record themselves, so call before visiting.
How can I verify Thomas J. Grayden, MD's license?
NPPES lists California license number G50401, 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 Thomas J. Grayden, MD prescribe under Medicare Part D?
In 2024, Thomas J. Grayden, MD had 43 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.