Douglas Alexander, MD
NPI 1639673452 · Psychiatry Physician · Rochester, NY
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Alexander, MD is a Psychiatry Physician provider in Rochester, NY (NPI 1639673452).
Provider details
- NPI number
- 1639673452
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 322980 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
64 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Emergency Department Visit With Straightforward Medical Decision Making99282 | 52 | $39 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 12 | $114 |
Typical Medicare-allowed amounts for these services range $39–$114 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-03-19
- Last updated
- 2025-02-11
- Certified
- 2025-02-11
Frequently asked questions
- What is Douglas Alexander's NPI number?
- Douglas Alexander's National Provider Identifier (NPI) is 1639673452, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Alexander's specialty?
- Douglas Alexander is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Alexander located?
- Douglas Alexander's practice location on file with NPPES is 601 Elmwood Ave, Rochester, NY 14642-2865.
- What is Douglas Alexander's phone number?
- The practice phone number listed in the NPPES registry for Douglas Alexander is (585) 275-4501.
- Does Douglas Alexander accept Medicare?
- Douglas Alexander is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Alexander's NPI active?
- Yes — Douglas Alexander's NPI (1639673452) is active in the NPPES registry as of the last update on 2025-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.