Ronald Grelsamer, M.D.
NPI 1699731752 · Orthopaedic Surgery Physician · New York, NY
Ronald Grelsamer, M.D. is a Orthopaedic Surgery Physician provider in New York, NY (NPI 1699731752).
Provider details
- NPI number
- 1699731752
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- 144292 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs 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
- 2006-04-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ronald Grelsamer's NPI number?
- Ronald Grelsamer's National Provider Identifier (NPI) is 1699731752, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Grelsamer's specialty?
- Ronald Grelsamer is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Grelsamer located?
- Ronald Grelsamer's practice location on file with NPPES is 5 E 98th St, New York, NY 10029-6501.
- What is Ronald Grelsamer's phone number?
- The practice phone number listed in the NPPES registry for Ronald Grelsamer is (212) 241-6980.
- Is Ronald Grelsamer's NPI active?
- Yes — Ronald Grelsamer's NPI (1699731752) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.