Joseph Nissenfeld, M.D.
NPI 1497956668 · Psychiatry Physician · Monsey, NY
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Nissenfeld, M.D. is a Psychiatry Physician provider in Monsey, NY (NPI 1497956668).
Provider details
- NPI number
- 1497956668
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 244571 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Lithium Carbonate | 28 |
| Lamotrigine | 17 |
| Buspirone Hcl | 13 |
| Prazosin Hcl | 12 |
| Fluoxetine Hclbrand: Prozac | 12 |
| Haloperidol Decanoate | 11 |
| Olanzapine | 11 |
| Trazodone Hcl | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$444 across 18 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
- 2007-05-29
- Last updated
- 2023-06-19
- Certified
- 2023-06-19
Frequently asked questions
- What is Joseph Nissenfeld's NPI number?
- Joseph Nissenfeld's National Provider Identifier (NPI) is 1497956668, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Nissenfeld's specialty?
- Joseph Nissenfeld is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Nissenfeld located?
- Joseph Nissenfeld's practice location on file with NPPES is 25 Robert Pitt Dr, Monsey, NY 10952-3365.
- What is Joseph Nissenfeld's phone number?
- The practice phone number listed in the NPPES registry for Joseph Nissenfeld is (845) 425-5252.
- Does Joseph Nissenfeld accept Medicare?
- Joseph Nissenfeld is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Nissenfeld's NPI active?
- Yes — Joseph Nissenfeld's NPI (1497956668) is active in the NPPES registry as of the last update on 2023-06-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.