Gregory Schimmack, PA-C
NPI 1538355755 · Surgical Physician Assistant · Portland, ME
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Schimmack, PA-C is a Surgical Physician Assistant provider in Portland, ME (NPI 1538355755).
Provider details
- NPI number
- 1538355755
- Entity type
- Individual
- Primary specialty
- Surgical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- PA001123 (ME)
Specialties & taxonomies
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
19 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
- 2007-09-20
- Last updated
- 2012-08-02
Frequently asked questions
- What is Gregory Schimmack's NPI number?
- Gregory Schimmack's National Provider Identifier (NPI) is 1538355755, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Schimmack's specialty?
- Gregory Schimmack is listed in the NPPES registry with a primary specialty of Surgical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gregory Schimmack located?
- Gregory Schimmack's practice location on file with NPPES is 818 Congress St, Portland, ME 04102-3112.
- What is Gregory Schimmack's phone number?
- The practice phone number listed in the NPPES registry for Gregory Schimmack is (207) 773-8161.
- Does Gregory Schimmack accept Medicare?
- Gregory Schimmack is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Schimmack's NPI active?
- Yes — Gregory Schimmack's NPI (1538355755) is active in the NPPES registry as of the last update on 2012-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.