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DR. GERALD FRANCIS MULDOON M.D.
NPI 1821076563
Internal Medicine in Dorchester Center, MA

Active since January 04, 2006
2100 DORCHESTER AVE, DORCHESTER CENTER, MA 02124(617) 296-4000 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Gerald Francis Muldoon M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GERALD FRANCIS MULDOON M.D. (NPI 1821076563) is an individual internal medicine provider in Dorchester Center, Massachusetts, licensed in Massachusetts (45882) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1821076563
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. GERALD FRANCIS MULDOONCredential: M.D.
Location Address2100 DORCHESTER AVEDorchester Center, MA 02124-5615
Mailing Address49 Brook Hill RdMilton, MA 02186-3012 · (617) 696-2086
Phone(617) 296-4000
Sole ProprietorNo
Enumeration DateJanuary 4, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1821076563 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MA · 45882
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
2100 DORCHESTER AVE, Dorchester Center, MA 02124
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Other Identifiers 1

Medicaid107654MA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gerald Francis Muldoon M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

Medicare enrollment records show Gerald Muldoon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Steward Medical Group, Inc
8.5 mi
Specialist
9 GALEN ST
Watertown, MA 02472
  • Reassigned Medicare billing, Massachusetts enrollment
  • 1,103 clinicians in this Medicare group
NPI 1629398219 (615) 467-4474

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

ELENA ROTFELD
Pharmacist
2100 DORCHESTER AVE, SEMC GPU AT CARNEY HOSPITAL
DORCHESTER, MA 02124
Suffolk County (617) 506-4536
DR. DANA MARIE HORNBEAK M.D., M.P.H.
Internal Medicine
2100 DORCHESTER AVE, CARITAS CARNEY HOSPITAL, 7 SOUTH
DORCHESTER, MA 02124
Suffolk County (617) 506-2726
CARITAS CARNEY HOSPITAL
Durable Medical Equipment & Medical Supplies
2100 DORCHESTER AVE
DORCHESTER CENTER, MA 02124
Suffolk County (617) 296-4000
CARITAS CARNEY HOSPITAL
Long Term Care Hospital
2100 DORCHESTER AVE
DORCHESTER CENTER, MA 02124
Suffolk County (617) 296-4000
BRECKON DANIEL PAV M.D.
Emergency Medicine
2100 DORCHESTER AVE
DORCHESTER, MA 02124
Suffolk County (617) 296-4000
RAMNINDER SINGH NAGRA MD
Internal Medicine
2100 DORCHESTER AVE
DORCHESTER, MA 02124
Suffolk County (617) 506-2726
DONNA L SPRINGS MD
Emergency Medicine
2100 DORCHESTER AVE
DORCHESTER CENTER, MA 02124
Suffolk County (617) 296-4000
MUSTAFA M SYED MD
Psychiatry & Neurology (Psychiatry)
2100 DORCHESTER AVE
DORCHESTER CENTER, MA 02124
Suffolk County (617) 296-4000

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 Gerald Muldoon's NPI number?

The NPI number for Gerald Muldoon is 1821076563. It was assigned to this individual provider in the NPPES registry on January 4, 2006.

Where is Gerald Muldoon located?

Gerald Muldoon practices at 2100 Dorchester Ave, Dorchester Center, MA 02124. The listed phone number is (617) 296-4000.

What is Gerald Muldoon's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Gerald Muldoon enrolled in Medicare?

Yes. Gerald Muldoon is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gerald Muldoon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gerald Muldoon reassigns Medicare benefits to Steward Medical Group, Inc (Watertown, MA). The 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 Gerald Muldoon'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 Gerald Muldoon was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.