DAVID BROOKE LIEBERMAN
NPI 1235591991
Internal Medicine in Nantucket, MA
About David Brooke Lieberman NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID BROOKE LIEBERMAN (NPI 1235591991) is an individual internal medicine provider in Nantucket, Massachusetts, licensed in Massachusetts (1021348) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of Warren Alpert Medical School Of Brown University (2016).
NPPES Registry Identity
Specialties & Licenses
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
David Brooke Lieberman 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 David Lieberman reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Nantucket, MA 02554
- Reassigned Medicare billing, Massachusetts enrollment
- 206 clinicians in this Medicare group
Nantucket, MA 02554
- Reassigned Medicare billing, Massachusetts enrollment
- 172 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.
Areas of Expertise CMS Part B claims 9
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
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, MABrigham And Women's Hospital
Acute Care Hospitals · Boston, MANantucket Cottage Hospital
Acute Care Hospitals · Nantucket, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02554 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
NANTUCKET, MA 02554
NANTUCKET, MA 02554
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 David Lieberman's NPI number?
The NPI number for David Lieberman is 1235591991. It was assigned to this individual provider in the NPPES registry on March 22, 2016.
Where is David Lieberman located?
David Lieberman practices at 57 Prospect St, Nantucket, MA 02554. The listed phone number is (508) 825-8100.
What is David Lieberman's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is David Lieberman enrolled in Medicare?
Yes. David Lieberman 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 David Lieberman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Lieberman reassigns Medicare benefits to 2 organizations: Nantucket Cottage Hospital (Nantucket, MA) and Nantucket Physicians Organization (Nantucket, 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 David Lieberman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is David Lieberman affiliated with any hospitals?
According to CMS data, David Lieberman is affiliated with Massachusetts General Hospital, Brigham And Women's Hospital and Nantucket Cottage Hospital.
When was this NPI record last updated?
The NPPES record for David Lieberman was last updated on May 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months 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.
# David Brooke Lieberman · NPI 1235591991
Internal Medicine physician in Nantucket, Massachusetts. Individual provider, active in the CMS NPPES registry since March 22, 2016.
## Identity
- **NPI:** 1235591991 (Entity type: Individual)
- **Enumerated:** March 22, 2016
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 1021348 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 57 PROSPECT ST, Nantucket, MA 02554-2799
- **Phone:** (508) 825-8100
## 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): Nantucket Cottage Hospital (NPI 1447214622, Nantucket, MA); Nantucket Physicians Organization (NPI 1568798510, Nantucket, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Warren Alpert Medical School Of Brown University, class of 2016
## Record status
- **NPPES last updated:** May 16, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1235591991) · Data from the CMS NPPES public registry.