IndividualActive
Nancy Karthas, NP
NPI 1386726750 · Nurse Practitioner · Boston, MA
Nancy Karthas, NP is a Nurse Practitioner provider in Boston, MA (NPI 1386726750).
Provider details
- NPI number
- 1386726750
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 124553 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
Detailed profile(90/100 index)
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
300 Longwood Ave
Boston, MA 02115-5724
Phone: (617) 355-8202
Fax: (617) 730-0911
Street-level locationGet directions
Mailing address
333 Longwood Ave
Boston, MA 02115-5711
Registry dates
- Enumerated
- 2006-10-19
- Last updated
- 2007-08-14
Frequently asked questions
- What is Nancy Karthas's NPI number?
- Nancy Karthas's National Provider Identifier (NPI) is 1386726750, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Karthas's specialty?
- Nancy Karthas is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nancy Karthas located?
- Nancy Karthas's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is Nancy Karthas's phone number?
- The practice phone number listed in the NPPES registry for Nancy Karthas is (617) 355-8202.
- Is Nancy Karthas's NPI active?
- Yes — Nancy Karthas's NPI (1386726750) is active in the NPPES registry as of the last update on 2007-08-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.