William Weiss, MD
NPI 1780726943 · Psychiatry Physician · New York, NY
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Weiss, MD is a Psychiatry Physician provider in New York, NY (NPI 1780726943).
Provider details
- NPI number
- 1780726943
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 122207 (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
19 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
2,290 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,096 | $101 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 629 | $78 |
| Psychotherapy With Evaluation and Management Visit, 45 Minutes90836 | 511 | $99 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 54 | $211 |
Typical Medicare-allowed amounts for these services range $78–$211 (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 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 315 | 62 |
| Sertraline Hcl | 144 | 25 |
| Bupropion Hclbrand: Bupropion Xl | 128 | 27 |
| Lorazepam | 116 | 25 |
| Mirtazapine | 112 | 26 |
| Escitalopram Oxalate | 111 | 25 |
| Lamotrigine | 107 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-13
- Last updated
- 2020-11-30
- Certified
- 2020-11-30
Frequently asked questions
- What is William Weiss's NPI number?
- William Weiss's National Provider Identifier (NPI) is 1780726943, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Weiss's specialty?
- William Weiss is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is William Weiss located?
- William Weiss's practice location on file with NPPES is 350 Central Park West, New York, NY 10025-6504.
- What is William Weiss's phone number?
- The practice phone number listed in the NPPES registry for William Weiss is (212) 289-1847.
- Does William Weiss accept Medicare?
- William Weiss is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Weiss's NPI active?
- Yes — William Weiss's NPI (1780726943) is active in the NPPES registry as of the last update on 2020-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.