DR. SAMUEL DAVID MALDONADO JR. MD, PHD
NPI 1972130912
Student in an Organized Health Care Education/Training Program in Boston, MA
About Dr. Samuel David Maldonado Jr. Md, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SAMUEL DAVID MALDONADO JR. MD, PHD (NPI 1972130912) is an individual student in an organized health care education/training program in Boston, Massachusetts and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, 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 and accepts Medicare assignment
Dr. Samuel David Maldonado Jr. Md, Phd 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
4Medicare enrollment records show Samuel Maldonado reassigns Medicare billing to 4 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
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 clinicians in this Medicare group
Newton, MA 02462
- Reassigned Medicare billing, Massachusetts enrollment
- 992 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts General Hospital
Acute Care Hospitals · Boston, MANewton-Wellesley Hospital
Acute Care Hospitals · Newton, MAFrequently 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 Samuel Maldonado's NPI number?
The NPI number for Samuel Maldonado is 1972130912. It was assigned to this individual provider in the NPPES registry on March 26, 2020.
Where is Samuel Maldonado located?
Samuel Maldonado practices at 55 Fruit Street, Bul-1-130, Boston, MA 02114. The listed phone number is (617) 726-3906.
What is Samuel Maldonado's specialty?
The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.
Is Samuel Maldonado enrolled in Medicare?
Yes. Samuel Maldonado 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 Samuel Maldonado's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Samuel Maldonado reassigns Medicare benefits to 4 organizations: Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA), Brigham & Womens Physicians Organization Inc (Boston, MA) and Mass General Brigham Medical Group Suburban Massachusetts Inc (Newton, 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 Samuel Maldonado's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Samuel Maldonado affiliated with any hospitals?
According to CMS data, Samuel Maldonado is affiliated with Massachusetts General Hospital and Newton-Wellesley Hospital.
When was this NPI record last updated?
The NPPES record for Samuel Maldonado was last updated on December 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Dr. Samuel David Maldonado Jr., MD, PHD · NPI 1972130912
Student in an Organized Health Care Education/Training Program provider in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 26, 2020.
## Identity
- **NPI:** 1972130912 (Entity type: Individual)
- **Enumerated:** March 26, 2020
- **Primary specialty:** Student in an Organized Health Care Education/Training Program · taxonomy 390200000X
- **Sole proprietor:** No
## Practice location
- **Address:** 55 FRUIT STREET, BUL-1-130, Boston, MA 02114
- **Phone:** (617) 726-3906 · **Fax:** (617) 643-4237
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA); Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA); Mass General Brigham Medical Group Suburban Massachusetts Inc (NPI 1538191218, Newton, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rutgers New Jersey Medical School, class of 2020
## Record status
- **NPPES last updated:** December 2, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1972130912) · Data from the CMS NPPES public registry.