Margaret Waterman, R. N. N. P.
NPI 1104839448 · Acute Care Nurse Practitioner · South Portland, ME
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Waterman, R. N. N. P. is a Acute Care Nurse Practitioner provider in South Portland, ME (NPI 1104839448).
Provider details
- NPI number
- 1104839448
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- R. N. N. P.
- Sex
- Female
- Sole proprietor
- No
- License
- AP081968 (ME)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
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
- 2006-08-15
- Last updated
- 2020-11-05
- Certified
- 2020-11-04
Frequently asked questions
- What is Margaret Waterman's NPI number?
- Margaret Waterman's National Provider Identifier (NPI) is 1104839448, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Waterman's specialty?
- Margaret Waterman is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Waterman located?
- Margaret Waterman's practice location on file with NPPES is Maine Health Cancer Care, South Portland, ME 04106.
- What is Margaret Waterman's phone number?
- The practice phone number listed in the NPPES registry for Margaret Waterman is (207) 661-0200.
- Does Margaret Waterman accept Medicare?
- Margaret Waterman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Waterman's NPI active?
- Yes — Margaret Waterman's NPI (1104839448) is active in the NPPES registry as of the last update on 2020-11-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.