Louis Neistadt, MD
NPI 1194825455 · Diagnostic Radiology Physician · New York, NY
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louis Neistadt, MD is a Diagnostic Radiology Physician provider in New York, NY (NPI 1194825455).
Provider details
- NPI number
- 1194825455
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 119859 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
110 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) |
|---|---|---|
| Ct Scan of Soft Tissue of Neck Before and After Contrast70492 | 62 | $121 |
| Ultrasound Scan of Head and Neck Soft Tissue76536 | 48 | $56 |
Typical Medicare-allowed amounts for these services range $56–$121 (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
- 2006-09-25
- Last updated
- 2013-07-16
Frequently asked questions
- What is Louis Neistadt's NPI number?
- Louis Neistadt's National Provider Identifier (NPI) is 1194825455, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Neistadt's specialty?
- Louis Neistadt is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Louis Neistadt located?
- Louis Neistadt's practice location on file with NPPES is 400 East 66th Street, New York, NY 10021.
- What is Louis Neistadt's phone number?
- The practice phone number listed in the NPPES registry for Louis Neistadt is (212) 838-4243.
- Does Louis Neistadt accept Medicare?
- Louis Neistadt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louis Neistadt's NPI active?
- Yes — Louis Neistadt's NPI (1194825455) is active in the NPPES registry as of the last update on 2013-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.