Ashwin Jacob Mathai, M.D.
Addiction Psychiatry Physician · Washington, DC
Ashwin Jacob Mathai, M.D. is an addiction psychiatry physician with a practice address in Washington, District of Columbia, and NPI 1467898817, issued on May 13, 2013. Check the license on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Ashwin Jacob Mathai
- Credential
- M.D.
- Primary taxonomy
- Addiction Psychiatry Physician 2084P0802X
- License number
- 284554 NY
Self-reported in NPPES; status is on the state search - Practice location
- 35 K St NE, Washington, DC 20002
- Phone
- (204) 442-4187
- Enumerated
- May 13, 2013
- Record last updated
- Dec 1, 2022
- Entity
- Type 1 · individual
6 nearest addiction psychiatry physician records → All 7 in District of Columbia → Look up another NPI →
Also registered at 35 K St NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mawusi AdutwumClinical Social Worker1952092389
- Ursula Akem, NPPsychiatric/Mental Health Nurse Practitioner1801410725
- Uchechi Akwara, RNRegistered Nurse1093204349
- Ana Alonso, LICSWClinical Social Worker1710924154
- Annastecia AnotiRegistered Nurse1144013756
- Hymanie AttobraCase Manager/Care Coordinator1437914330
Verify Ashwin Jacob Mathai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average addiction psychiatry physician in 2024
21 Medicare Part D claims, against an average of 716 among the 421 providers of this specialty who prescribed in Part D.
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.
Addiction Psychiatry Physician providers in District of Columbia
There are 7 addiction psychiatry physician records in District of Columbia.
All 7 in District of Columbia → Every provider in Washington → Addiction Psychiatry Physician nationwide →
The 6 addiction psychiatry physician records with the nearest ZIP codes
- Sally Satel, MDWashington, DC 200021558509554
- John Syphax, MDWashington, DC 200361982894481
- Lisa Eitches, MDWashington, DC 200371477173326
- William Lawson, MDWashington, DC 200601750499406
- Robert Mickey, MDWashington, DC 200601508974239
- Richard Schottenfeld, M.D.Washington, DC 200601760670178
Common questions
What is Ashwin Jacob Mathai, M.D.'s NPI number?
Ashwin Jacob Mathai, M.D.'s National Provider Identifier (NPI) is 1467898817, issued on May 13, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Ashwin Jacob Mathai, M.D. located?
The NPPES record lists a practice address at 35 K St NE, Washington, DC, 20002. Phone: (204) 442-4187. Providers update this record themselves, so call before visiting.
How can I verify Ashwin Jacob Mathai, M.D.'s license?
Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ashwin Jacob Mathai, M.D. prescribe under Medicare Part D?
In 2024, Ashwin Jacob Mathai, M.D. had 21 Medicare Part D claims; the average among addiction psychiatry physician prescribers was 716. 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.