Gregory Xanthaky, MD
NPI 1518934397 · Internal Medicine Physician · Oneonta, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Xanthaky, MD is a Internal Medicine Physician provider in Oneonta, NY (NPI 1518934397).
Provider details
- NPI number
- 1518934397
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 090220 (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
- 2006-03-01
- Last updated
- 2010-01-14
Frequently asked questions
- What is Gregory Xanthaky's NPI number?
- Gregory Xanthaky's National Provider Identifier (NPI) is 1518934397, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Xanthaky's specialty?
- Gregory Xanthaky is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Xanthaky located?
- Gregory Xanthaky's practice location on file with NPPES is 438 Main St, Oneonta, NY 13820-2058.
- What is Gregory Xanthaky's phone number?
- The practice phone number listed in the NPPES registry for Gregory Xanthaky is (607) 432-7900.
- Does Gregory Xanthaky accept Medicare?
- Gregory Xanthaky is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Xanthaky's NPI active?
- Yes — Gregory Xanthaky's NPI (1518934397) is active in the NPPES registry as of the last update on 2010-01-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.