Clark Zhang
NPI 1679034326 · Gastroenterology Physician · Williamsville, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clark Zhang is a Gastroenterology Physician provider in Williamsville, NY (NPI 1679034326).
Provider details
- NPI number
- 1679034326
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- 332769 (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
7 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
- 2019-03-26
- Last updated
- 2025-06-11
- Certified
- 2025-06-11
Frequently asked questions
- What is Clark Zhang's NPI number?
- Clark Zhang's National Provider Identifier (NPI) is 1679034326, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clark Zhang's specialty?
- Clark Zhang is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Clark Zhang located?
- Clark Zhang's practice location on file with NPPES is 60 Maple Rd Ste 1, Williamsville, NY 14221-2917.
- What is Clark Zhang's phone number?
- The practice phone number listed in the NPPES registry for Clark Zhang is (716) 626-5250.
- Does Clark Zhang accept Medicare?
- Clark Zhang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clark Zhang's NPI active?
- Yes — Clark Zhang's NPI (1679034326) is active in the NPPES registry as of the last update on 2025-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.