Mary Sue Schaefer, PHYSICIAN ASSISTANT
NPI 1063645430 · Medical Physician Assistant · Worcester, MA
Enrolled with Medicare as Order and Referring Only - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Sue Schaefer, PHYSICIAN ASSISTANT is a Medical Physician Assistant provider in Worcester, MA (NPI 1063645430).
Provider details
- NPI number
- 1063645430
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PHYSICIAN ASSISTANT
- Sex
- Female
- Sole proprietor
- No
- License
- 1247 (MA)
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
16 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
- 2009-09-01
- Last updated
- 2012-03-20
Frequently asked questions
- What is Mary Sue Schaefer's NPI number?
- Mary Sue Schaefer's National Provider Identifier (NPI) is 1063645430, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Sue Schaefer's specialty?
- Mary Sue Schaefer is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Sue Schaefer located?
- Mary Sue Schaefer's practice location on file with NPPES is 470 Pleasant St, Worcester, MA 01609-1823.
- What is Mary Sue Schaefer's phone number?
- The practice phone number listed in the NPPES registry for Mary Sue Schaefer is (508) 854-3300.
- Does Mary Sue Schaefer accept Medicare?
- Mary Sue Schaefer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Sue Schaefer's NPI active?
- Yes — Mary Sue Schaefer's NPI (1063645430) is active in the NPPES registry as of the last update on 2012-03-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.