Daren Grabowski
NPI 1235939992 · Emergency Medicine Physician · Buffalo, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daren Grabowski is a Emergency Medicine Physician provider in Buffalo, NY (NPI 1235939992).
Provider details
- NPI number
- 1235939992
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Physician Assistant363A00000X
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
83% 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
- 2025-03-13
- Last updated
- 2025-07-31
- Certified
- 2025-07-31
Frequently asked questions
- What is Daren Grabowski's NPI number?
- Daren Grabowski's National Provider Identifier (NPI) is 1235939992, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daren Grabowski's specialty?
- Daren Grabowski is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Daren Grabowski located?
- Daren Grabowski's practice location on file with NPPES is 2001 Main St, Buffalo, NY 14208-1035.
- What is Daren Grabowski's phone number?
- The practice phone number listed in the NPPES registry for Daren Grabowski is (716) 883-7000.
- Does Daren Grabowski accept Medicare?
- Daren Grabowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daren Grabowski's NPI active?
- Yes — Daren Grabowski's NPI (1235939992) is active in the NPPES registry as of the last update on 2025-07-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.