Peter Terhaar, D.O.
NPI 1184622821 · Orthopaedic Surgery Physician · Olean, NY
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Terhaar, D.O. is a Orthopaedic Surgery Physician provider in Olean, NY (NPI 1184622821).
Provider details
- NPI number
- 1184622821
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 169205 (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
- 2005-07-07
- Last updated
- 2010-04-14
Frequently asked questions
- What is Peter Terhaar's NPI number?
- Peter Terhaar's National Provider Identifier (NPI) is 1184622821, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Terhaar's specialty?
- Peter Terhaar is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Terhaar located?
- Peter Terhaar's practice location on file with NPPES is 2626 W State St, Olean, NY 14760-1858.
- What is Peter Terhaar's phone number?
- The practice phone number listed in the NPPES registry for Peter Terhaar is (716) 373-1590.
- Does Peter Terhaar accept Medicare?
- Peter Terhaar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Terhaar's NPI active?
- Yes — Peter Terhaar's NPI (1184622821) is active in the NPPES registry as of the last update on 2010-04-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.