LAUREN NANCY UNGER AGNP-C
NPI 1508331000
Nurse Practitioner in Boston, MA
About Lauren Nancy Unger Agnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LAUREN NANCY UNGER AGNP-C (NPI 1508331000) is an individual nurse practitioner in Boston, Massachusetts, licensed in Massachusetts (RN2341598) and active in the NPI registry since October 2018. She is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses 4
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Lauren Nancy Unger Agnp-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Lauren Unger reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts General Hospital
Acute Care Hospitals · Boston, MAMassachusetts Eye And Ear Infirmary -
Acute Care Hospitals · Boston, MABrigham And Women's Hospital
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
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 Lauren Unger's NPI number?
The NPI number for Lauren Unger is 1508331000. It was assigned to this individual provider in the NPPES registry on October 10, 2018.
Where is Lauren Unger located?
Lauren Unger practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (857) 238-1000.
What is Lauren Unger's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Lauren Unger enrolled in Medicare?
Yes. Lauren Unger is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Lauren Unger's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lauren Unger reassigns Medicare benefits to 2 organizations: Massachusetts General Physicians Organization Inc (Boston, MA) and The General Hospital Corporation (Boston, MA). 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 Lauren Unger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lauren Unger accept?
Health plans from Taro Health list Lauren Unger as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Lauren Unger affiliated with any hospitals?
According to CMS data, Lauren Unger is affiliated with Massachusetts General Hospital, Massachusetts Eye And Ear Infirmary - and Brigham And Women's Hospital.
When was this NPI record last updated?
The NPPES record for Lauren Unger was last updated on May 4, 2021. 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.
# Lauren Nancy Unger, AGNP-C · NPI 1508331000
Nurse Practitioner physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since October 10, 2018.
## Identity
- **NPI:** 1508331000 (Entity type: Individual)
- **Enumerated:** October 10, 2018
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** RN2341598 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 FRUIT ST, Boston, MA 02114-2621
- **Phone:** (857) 238-1000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** May 4, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1508331000) · Data from the CMS NPPES public registry.