Buffalo Hospitalist Services, P.C.
NPI 1023002516 · Internal Medicine Physician · Williamsville, NY
Buffalo Hospitalist Services, P.C. is a Internal Medicine Physician organization in Williamsville, NY (NPI 1023002516).
Provider details
- NPI number
- 1023002516
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Lynn Cieslak, President(716) 481-7384
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
- 2005-09-11
- Last updated
- 2020-08-22
Frequently asked questions
- What is Buffalo Hospitalist Services, P.C.'s NPI number?
- Buffalo Hospitalist Services, P.C.'s National Provider Identifier (NPI) is 1023002516, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Buffalo Hospitalist Services, P.C.?
- Buffalo Hospitalist Services, P.C. is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Buffalo Hospitalist Services, P.C. located?
- Buffalo Hospitalist Services, P.C.'s practice location on file with NPPES is 1540 Maple Rd, Williamsville, NY 14221-3647.
- What is Buffalo Hospitalist Services, P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Buffalo Hospitalist Services, P.C. is (716) 481-7384.
- Who is the authorized official for Buffalo Hospitalist Services, P.C.?
- The authorized official listed on Buffalo Hospitalist Services, P.C.'s NPPES record is Lynn Cieslak, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Buffalo Hospitalist Services, P.C.'s NPI active?
- Yes — Buffalo Hospitalist Services, P.C.'s NPI (1023002516) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.