Katherine Mahar, NP, CNM
NPI 1710347935 · Advanced Practice Midwife · Portsmouth, NH
Enrolled with Medicare as Practitioner - Certified Nurse Midwife (cnm) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Mahar, NP, CNM is a Advanced Practice Midwife provider in Portsmouth, NH (NPI 1710347935).
Provider details
- NPI number
- 1710347935
- Entity type
- Individual
- Primary specialty
- Advanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP, CNM
- Sex
- Female
- Sole proprietor
- No
- License
- RN2306517 (MA)
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
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Additional practice locations (2)
- 15 Old Rollinsford Rd Ste 102Dover, NH 03820-2869Phone: (603) 749-4963
- 1535 State StSalem, OR 97301-4255Phone: (503) 364-3787Fax: (503) 763-3595
Registry dates
- Enumerated
- 2016-03-01
- Last updated
- 2020-03-17
- Certified
- 2020-03-17
Frequently asked questions
- What is Katherine Mahar's NPI number?
- Katherine Mahar's National Provider Identifier (NPI) is 1710347935, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Mahar's specialty?
- Katherine Mahar is listed in the NPPES registry with a primary specialty of Advanced Practice Midwife (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Mahar located?
- Katherine Mahar's practice location on file with NPPES is 67 Corporate Drive, Portsmouth, NH 03801.
- What is Katherine Mahar's phone number?
- The practice phone number listed in the NPPES registry for Katherine Mahar is (603) 610-8079.
- Does Katherine Mahar accept Medicare?
- Katherine Mahar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Mahar's NPI active?
- Yes — Katherine Mahar's NPI (1710347935) is active in the NPPES registry as of the last update on 2020-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.