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DR. MARION JOAN MANSFIELD MD
NPI 1023054251
Pediatrics - Pediatric Endocrinology in Boston, MA

Active since June 22, 2006
1 JOSLIN PLACE, JOSLIN DIABETES CENTER, BOSTON, MA 02215(617) 732-2603 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 11, 2025, Jul 21, 2022 (2 updates tracked since 2022).

About Dr. Marion Joan Mansfield Md NPPES

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

DR. MARION JOAN MANSFIELD MD (NPI 1023054251) is an individual pediatric endocrinology provider in Boston, Massachusetts, licensed in Massachusetts (44627) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1023054251
Entity TypeIndividualFemale
Primary Taxonomy2080P0205X
Provider Legal NameDR. MARION JOAN MANSFIELDCredential: MD
Location Address1 JOSLIN PLACE, JOSLIN DIABETES CENTERBoston, MA 02215
Mailing Address12 Mackintosh LnLincoln, MA 01773-3204 · (781) 259-9863 · Fax (617) 732-2451
Phone(617) 732-2603
Sole ProprietorNo
Enumeration DateJune 22, 2006
Last NPPES UpdateSeptember 11, 20252 updates tracked since enumeration
✔ NPI 1023054251 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric EndocrinologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0205X
License✔ Licensed in MA · 44627
Definition
A pediatrician who provides expert care to infants, children and adolescents who have diseases that result from an abnormality in the endocrine glands (glands which secrete hormones). These diseases include diabetes mellitus, growth failure, unusual size for age, early or late pubertal development, birth defects, the genital region and disorders of the thyroid, the adrenal and pituitary glands.
Also ListedPediatrics · Adolescent MedicineTaxonomy 2080A0000X · License 44627 (MA)
1 JOSLIN PLACE, Boston, MA 02215
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Other Names 1

Other Name (5)Dr. Joan Mansfield Md

Other Identifiers 1

Medicaid6165508MA

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARY ELIZABETH PATTI M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1 JOSLIN PLACE, JOSLIN DIABETES CENTER
BOSTON, MA 02215
Suffolk County (617) 735-1966
MS. ANN P. FELDMAN MS, RD, CDE
Dietitian, Registered
1 JOSLIN PLACE, JOSLIN DIABETES CENTER
BOSTON, MA 02215
Suffolk County (617) 309-4418
DR. LLOYD PAUL AIELLO M.D., PH.D.
Ophthalmology
1 JOSLIN PLACE, JOSLIN DIABETES CENTER
BOSTON, MA 02215
Suffolk County (617) 732-2520

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 Marion Mansfield's NPI number?

The NPI number for Marion Mansfield is 1023054251. It was assigned to this individual provider in the NPPES registry on June 22, 2006. The provider is also known as Dr. Joan Mansfield MD.

Where is Marion Mansfield located?

Marion Mansfield practices at 1 Joslin Place Joslin Diabetes Center, Boston, MA 02215. The listed phone number is (617) 732-2603.

What is Marion Mansfield's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.

When was this NPI record last updated?

The NPPES record for Marion Mansfield was last updated on September 11, 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.