Gregory Washington, MD
NPI 1568679314 · Psychiatry Physician · Detroit, MI
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Washington, MD is a Psychiatry Physician provider in Detroit, MI (NPI 1568679314).
Provider details
- NPI number
- 1568679314
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301084537 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
108 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 47 | $165 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 26 | $174 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 19 | $113 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 16 | $71 |
Typical Medicare-allowed amounts for these services range $71–$174 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 57 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Benztropine Mesylate | 559 | 74 |
| Quetiapine Fumarate | 534 | 75 |
| Risperidone | 391 | 60 |
| Olanzapine | 381 | 48 |
| Trazodone Hcl | 356 | 65 |
| Divalproex Sodium | 310 | 42 |
| Haloperidol Decanoate | 287 | 32 |
| Haloperidol | 284 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,120 across 46 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-17
- Last updated
- 2024-04-16
- Certified
- 2024-04-16
Frequently asked questions
- What is Gregory Washington's NPI number?
- Gregory Washington's National Provider Identifier (NPI) is 1568679314, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Washington's specialty?
- Gregory Washington is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Washington located?
- Gregory Washington's practice location on file with NPPES is 3901 Walter P Chrysler Service Dr., Detroit, MI 48201-2167.
- What is Gregory Washington's phone number?
- The practice phone number listed in the NPPES registry for Gregory Washington is (313) 993-3434.
- Does Gregory Washington accept Medicare?
- Gregory Washington is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Washington's NPI active?
- Yes — Gregory Washington's NPI (1568679314) is active in the NPPES registry as of the last update on 2024-04-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.