Steven Peyser, MD
NPI 1689641045 · Diagnostic Radiology Physician · Massapequa, NY
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Peyser, MD is a Diagnostic Radiology Physician provider in Massapequa, NY (NPI 1689641045).
Provider details
- NPI number
- 1689641045
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1687431 (NY)
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
20 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
3,439 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) |
|---|---|---|
| Screening Mammography77067 | 425 | $150 |
| Screening 3d Breast Mammography77063 | 424 | $60 |
| Ultrasound Scan of Head and Neck Soft Tissue76536 | 406 | $129 |
| Ct Scan of Chest Without Contrast71250 | 232 | $152 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 200 | $54 |
| X-Ray of Chest, 2 Views71046 | 189 | $39 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$180 across 1 record (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
- 2006-03-03
- Last updated
- 2023-03-07
Frequently asked questions
- What is Steven Peyser's NPI number?
- Steven Peyser's National Provider Identifier (NPI) is 1689641045, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Peyser's specialty?
- Steven Peyser is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Peyser located?
- Steven Peyser's practice location on file with NPPES is 4160 Merrick Road, Massapequa, NY 11758.
- What is Steven Peyser's phone number?
- The practice phone number listed in the NPPES registry for Steven Peyser is (516) 797-6700.
- Does Steven Peyser accept Medicare?
- Steven Peyser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Peyser's NPI active?
- Yes — Steven Peyser's NPI (1689641045) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.