On Seng, NP-C
NPI 1992358162 · Family Nurse Practitioner · Cambridge, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
On Seng, NP-C is a Family Nurse Practitioner provider in Cambridge, MA (NPI 1992358162).
Provider details
- NPI number
- 1992358162
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP-C
- Sex
- Female
- Sole proprietor
- No
- License
- RN2273053 (MA)
Specialties & taxonomies
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
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 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 (1)
- 70 Forsyth St Bldg 1Boston, MA 02115-5026Phone: (617) 373-2772
Registry dates
- Enumerated
- 2019-07-17
- Last updated
- 2020-12-31
- Certified
- 2020-12-27
Frequently asked questions
- What is On Seng's NPI number?
- On Seng's National Provider Identifier (NPI) is 1992358162, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is On Seng's specialty?
- On Seng is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is On Seng located?
- On Seng's practice location on file with NPPES is 36 White St, Cambridge, MA 02140.
- What is On Seng's phone number?
- The practice phone number listed in the NPPES registry for On Seng is (617) 876-5519.
- Does On Seng accept Medicare?
- On Seng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is On Seng's NPI active?
- Yes — On Seng's NPI (1992358162) is active in the NPPES registry as of the last update on 2020-12-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.