Martin Speiser, NP
NPI 1689498644 · Acute Care Nurse Practitioner · New York, NY
Enrolled with Medicare as Order and Referring Only - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Martin Speiser, NP is a Acute Care Nurse Practitioner provider in New York, NY (NPI 1689498644).
Provider details
- NPI number
- 1689498644
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Male
- Sole proprietor
- No
- License
- 432902 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2024-11-14
- Last updated
- 2024-11-14
- Certified
- 2024-11-14
Frequently asked questions
- What is Martin Speiser's NPI number?
- Martin Speiser's National Provider Identifier (NPI) is 1689498644, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martin Speiser's specialty?
- Martin Speiser is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Martin Speiser located?
- Martin Speiser's practice location on file with NPPES is 1468 Madison Ave, New York, NY 10029-6508.
- What is Martin Speiser's phone number?
- The practice phone number listed in the NPPES registry for Martin Speiser is (212) 241-6500.
- Does Martin Speiser accept Medicare?
- Martin Speiser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Martin Speiser's NPI active?
- Yes — Martin Speiser's NPI (1689498644) is active in the NPPES registry as of the last update on 2024-11-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.