Maryann Walsh, MD
NPI 1811980204 · Internal Medicine Physician · Brewer, ME
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maryann Walsh, MD is a Internal Medicine Physician provider in Brewer, ME (NPI 1811980204).
Provider details
- NPI number
- 1811980204
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD13386 (ME)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2005-08-31
- Last updated
- 2014-07-25
Frequently asked questions
- What is Maryann Walsh's NPI number?
- Maryann Walsh's National Provider Identifier (NPI) is 1811980204, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maryann Walsh's specialty?
- Maryann Walsh is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Maryann Walsh located?
- Maryann Walsh's practice location on file with NPPES is 234 State St, Brewer, ME 04412-1519.
- What is Maryann Walsh's phone number?
- The practice phone number listed in the NPPES registry for Maryann Walsh is (207) 989-5005.
- Does Maryann Walsh accept Medicare?
- Maryann Walsh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maryann Walsh's NPI active?
- Yes — Maryann Walsh's NPI (1811980204) is active in the NPPES registry as of the last update on 2014-07-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.