MRS. ON SENG NP-C
NPI 1992358162
Nurse Practitioner - Family in Cambridge, MA
About Mrs. On Seng Np-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. ON SENG NP-C (NPI 1992358162) is an individual family provider in Cambridge, Massachusetts, licensed in Massachusetts (RN2273053) and active in the NPI registry since July 2019. She is enrolled in Medicare PECOS and maintains a secondary practice location in Boston.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mrs. On Seng Np-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show On Seng reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Paramus, NJ 07652
- Reassigned Medicare billing, New Jersey enrollment
- 58 clinicians in this Medicare group
Winston Salem, NC 27103
- Reassigned Medicare billing, North Carolina enrollment
- 31 clinicians in this Medicare group
Brentwood, TN 37027
- Reassigned Medicare billing, Texas enrollment
- 91 clinicians in this Medicare group
Brentwood, TN 37027
- Reassigned Medicare billing, Pennsylvania enrollment
- 99 clinicians in this Medicare group
Davenport, IA 52807
- Reassigned Medicare billing, Iowa enrollment
- 46 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02140 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CAMBRIDGE, MA 02140
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is On Seng's NPI number?
The NPI number for On Seng is 1992358162. It was assigned to this individual provider in the NPPES registry on July 17, 2019.
Where is On Seng located?
On Seng practices at 36 White St, Cambridge, MA 02140. The listed phone number is (617) 876-5519.
What is On Seng's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is On Seng enrolled in Medicare?
Yes. On Seng is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for On Seng's services?
According to the CMS Revalidation Reassignment List (October 2026 release), On Seng reassigns Medicare benefits to 5 organizations: Monogram Health Professional Services Of New Jersey LLC (Paramus, NJ), Monogram Health Professional Services Of North Carolina PC (Winston Salem, NC), Monogram Health Professional Services Of Texas PLLC (Brentwood, TN), Monogram Health Professional Services PC (Brentwood, TN) and Monogram Health Professional Services Of Iowa PLLC (Davenport, IA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for On Seng's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for On Seng was last updated on December 31, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.