Gregory S. Washington, MD
Psychiatry Physician · Detroit, MI
Gregory S. Washington, MD is a psychiatry physician with a practice address in Detroit, Michigan, and NPI 1568679314, issued on May 17, 2007. Check the license (Michigan 4301084537, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Gregory S. Washington
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 4301084537 MI
Self-reported in NPPES; status is on the state search - Practice location
- 3901 Walter P Chrysler Service Dr., Detroit, MI 48201
- Phone
- (313) 993-3434
- Enumerated
- May 17, 2007
- Record last updated
- Apr 16, 2024
- Fax
- (313) 993-3421
- Medicare enrollment
- Enrolled (PECOS I20080528000658); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2004
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,729 in Michigan → Look up another NPI →
Also registered at 3901 Walter P Chrysler Service Dr.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Richard Balon, MDPsychiatry Physician1134166846
- Audrey Gilliatt, LMSWClinical Social Worker1083739007
- Ashok Shah, MDPsychiatry Physician1710945043
- Babu Vadlamudi, MDPsychiatry Physician1740227735
Verify Gregory S. Washington in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301084537Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7.3 times the Medicare Part D claims of the average psychiatry physician in 2024
7,264 Medicare Part D claims for 420 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Benztropine Mesylate559 claims
- Quetiapine Fumarate534 claims
- Risperidone391 claims
- Olanzapine381 claims
- Trazodone Hcl356 claims
- Divalproex Sodium310 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: $1,119.70
46 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.
Bills Medicare through one group practice
- University Physician GroupDetroit, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory S. Washington among 1,729 psychiatry physician records in Michigan
Gregory S. Washington, MD is one of 1,729 psychiatry physician records with a practice address in Michigan. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 37% of them.
- NPI issued2007 · 37% of these records are older, 49% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated2004 · median 2005 among the 828 with a school on file
- Record last updated2024 · 50% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Michigan
There are 1,729 psychiatry physician records in Michigan.
All 1,729 in Michigan → Every provider in Detroit → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Jean Alce, M.D.Detroit, MI 482011083616429
- Richard Balon, MDDetroit, MI 482011134166846
- John Grabowski, M.DDetroit, MI 482011477517191
- Luay Haddad, MDDetroit, MI 482011538106059
- Sunday Ilechukwu, MDDetroit, MI 482011144268269
- Usha Kilaru, M.DDetroit, MI 482011144272022
- Thomas McCullough, MDDetroit, MI 482011386609121
- Abdul Rauf, MDDetroit, MI 482011417994906
Common questions
What is Gregory S. Washington, MD's NPI number?
Gregory S. Washington, MD's National Provider Identifier (NPI) is 1568679314, issued on May 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gregory S. Washington, MD located?
The NPPES record lists a practice address at 3901 Walter P Chrysler Service Dr., Detroit, MI, 48201. Phone: (313) 993-3434. Providers update this record themselves, so call before visiting.
How can I verify Gregory S. Washington, MD's license?
NPPES lists Michigan license number 4301084537, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory S. Washington, MD prescribe under Medicare Part D?
In 2024, Gregory S. Washington, MD had 7,264 Medicare Part D claims for 420 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.