Ajay Pal Singh, M.D.
Psychiatry Physician · Davis, CA
Ajay Pal Singh, M.D. is a psychiatry physician with a practice address in Davis, California, and NPI 1689830408, issued on Jul 31, 2008. Check the license (California A118490, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ajay Pal Singh
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A118490 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1590 Drew Ave Ste 200, Davis, CA 95618
- Phone
- (530) 297-7500
- Enumerated
- Jul 31, 2008
- Record last updated
- Jul 1, 2026
- Fax
- (530) 297-7751
- Medicare enrollment
- Enrolled (PECOS I20121004000242); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 1590 Drew Ave Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine Brennan, MDPsychiatry Physician1346354990
- Rebecca Currie, LCSWClinical Social Worker1346729340
- Bita Shaghaghi, D.O.Psychiatry Physician1467690156
Verify Ajay Pal Singh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A118490Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average psychiatry physician in 2024
144 Medicare Part D claims for 16 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Trazodone Hcl13 claims
- Duloxetine Hcl12 claims
- Methylphenidate Er12 claims
- Escitalopram Oxalate11 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.
Bills Medicare through one group practice
- Mark David Levine MD Professional CorporationDavis, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ajay Pal Singh among 8,673 psychiatry physician records in California
Ajay Pal Singh, 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 2008, is newer than 52% of them.
- NPI issued2008 · 52% of these records are older, 43% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated1997 · median 2005 among the 3,295 with a school on file
- Record last updated2026 · 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).
22 psychiatry physician records list a practice address in Davis
They are 22 of the 1,711 NPPES records with a practice address in Davis, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Davis → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Elizabeth Bowler, MDDavis, CA 956181215102165
- Catherine Brennan, MDDavis, CA 956181346354990
- Paul Cox, M.D.Davis, CA 956181790769834
- Ana Junia, M.D.Davis, CA 956181255580981
- Phacharawut Kanchananakhin, MDDavis, CA 956181114031721
- Seema Khan, M.D.Davis, CA 956181295842540
- Pavan Madan, M.D.Davis, CA 956181922319573
- Bita Shaghaghi, D.O.Davis, CA 956181467690156
Common questions
What is Ajay Pal Singh, M.D.'s NPI number?
Ajay Pal Singh, M.D.'s National Provider Identifier (NPI) is 1689830408, issued on Jul 31, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Ajay Pal Singh, M.D. located?
The NPPES record lists a practice address at 1590 Drew Ave Ste 200, Davis, CA, 95618. Phone: (530) 297-7500. Providers update this record themselves, so call before visiting.
How can I verify Ajay Pal Singh, M.D.'s license?
NPPES lists California license number A118490, 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 Ajay Pal Singh, M.D. prescribe under Medicare Part D?
In 2024, Ajay Pal Singh, M.D. had 144 Medicare Part D claims for 16 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.