Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. JEFFREY A GELFAND MD
NPI 1114917986
Allergy & Immunology in Boston, MA

Q: What is Jeffrey Gelfand's NPI number?

The NPI number for Jeffrey Gelfand is 1114917986. It was assigned to this individual provider in the NPPES registry on October 24, 2005.

Q: What is Jeffrey Gelfand's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Q: When was this NPI record last updated?

The NPPES record for Jeffrey Gelfand was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since October 24, 2005PECOS Enrolled

55 FRUIT ST, S50-801 INFECTIOUS DISEASE ASSOCIATES, BOSTON, MA 02114(617) 726-1796 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

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About Dr. Jeffrey A Gelfand Md NPPES

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

DR. JEFFREY A GELFAND MD (NPI 1114917986) is an individual allergy & immunology provider in Boston, Massachusetts, licensed in Massachusetts (40886) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1114917986

Entity TypeIndividualMale

Primary Taxonomy207K00000X

Provider Legal NameDR. JEFFREY A GELFANDCredential: MD

Location Address55 FRUIT ST, S50-801 INFECTIOUS DISEASE ASSOCIATESBoston, MA 02114-2621

Mailing AddressPo Box 9142, Mass General Physician OrganizationCharlestown, MA 02129-9142 · (617) 724-0287 · Fax (617) 726-2894

Phone(617) 726-1796

Sole ProprietorNo

Enumeration DateOctober 24, 2005

Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration

✔ NPI 1114917986 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

License✔ Licensed in MA · 40886

Definition

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

Also ListedInternal Medicine · Infectious DiseaseTaxonomy 207RI0200X · License 40886 (MA)

55 FRUIT ST, Boston, MA 02114

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Other Identifiers 3

Medicaid0104744MA

OtherE05091MA · Bcbs Ma

Other702060MA · Tufts Health Plan

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Jeffrey A Gelfand Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer– Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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