William Hallenbeck, M.D.
NPI 1063720076 · Adult Medicine Physician · Greene, NY
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Hallenbeck, M.D. is a Adult Medicine Physician provider in Greene, NY (NPI 1063720076).
Provider details
- NPI number
- 1063720076
- Entity type
- Individual
- Primary specialty
- Adult Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 087920 (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 tenure38% of score
15 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
- 2010-09-24
- Last updated
- 2010-09-24
Frequently asked questions
- What is William Hallenbeck's NPI number?
- William Hallenbeck's National Provider Identifier (NPI) is 1063720076, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Hallenbeck's specialty?
- William Hallenbeck is listed in the NPPES registry with a primary specialty of Adult Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Hallenbeck located?
- William Hallenbeck's practice location on file with NPPES is 248 Race Rd, Greene, NY 13778-4157.
- What is William Hallenbeck's phone number?
- The practice phone number listed in the NPPES registry for William Hallenbeck is (607) 656-9700.
- Does William Hallenbeck accept Medicare?
- William Hallenbeck is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Hallenbeck's NPI active?
- Yes — William Hallenbeck's NPI (1063720076) is active in the NPPES registry as of the last update on 2010-09-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.