Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MICHAEL D GAFFNEY MD
NPI 1346702446
Pediatrics - Developmental - Behavioral Pediatrics in Boston, MA

Q: What is Michael Gaffney's NPI number?

The NPI number for Michael Gaffney is 1346702446. It was assigned to this individual provider in the NPPES registry on April 5, 2019.

Q: What is Michael Gaffney's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Developmental - Behavioral Pediatrics, with taxonomy code 2080P0006X.

Q: When was this NPI record last updated?

The NPPES record for Michael Gaffney was last updated on September 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days 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.

Active since April 05, 2019

300 LONGWOOD AVE, BOSTON, MA 02115(617) 355-6000 Get Directions Write a Review

NPPES record last updated: September 15, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

Record update history: Sep 15, 2026, Jul 11, 2023, Jul 8, 2022 and 1 more (4 updates tracked since 2019).

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About Michael D Gaffney Md NPPES

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

MICHAEL D GAFFNEY MD (NPI 1346702446) is an individual developmental - behavioral pediatrics provider in Boston, Massachusetts, licensed in Massachusetts (1014394) and active in the NPI registry since April 2019.

NPPES Registry Identity

NPI1346702446

Entity TypeIndividualMale

Primary Taxonomy2080P0006X

Provider Legal NameMICHAEL D GAFFNEYCredential: MD

Location Address300 LONGWOOD AVEBoston, MA 02115-5724

Mailing Address300 Longwood AveBoston, MA 02115-5724 · (617) 355-6000

Phone(617) 355-6000

Sole ProprietorYes

Enumeration DateApril 5, 2019

Last NPPES UpdateSeptember 15, 20264 updates tracked since enumeration

NPPES CertifiedSeptember 15, 2026

✔ NPI 1346702446 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Developmental - Behavioral PediatricsAllopathic & Osteopathic Physicians

Taxonomy Code2080P0006X

License✔ Licensed in MA · 1014394

Definition

A developmental-behavioral specialist is a pediatrician with special training and experience who aims to foster understanding and promotion of optimal development of children and families through research, education, clinical care and advocacy efforts. This physician assists in the prevention, diagnosis, and management of developmental difficulties and problematic behaviors in children and in the family dysfunctions that compromise children's development.

Also ListedPediatricsTaxonomy 208000000X · License 1014394 (MA)

300 LONGWOOD AVE, Boston, MA 02115

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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.

JULIE ANN HANSEN LCSW

Social Worker (Clinical)

300 LONGWOOD AVE
BOSTON, MA 02115

Suffolk County (857) 218-4309

MS. ANNA ROGLIERI

Nurse Practitioner (Psychiatric/Mental Health)

300 LONGWOOD AVE
BOSTON, MA 02115

Suffolk County (617) 355-6000

STEPHEN G. FLYNN M.D.

Anesthesiology (Pediatric Anesthesiology)

300 LONGWOOD AVE
BOSTON, MA 02115

Suffolk County (617) 355-6000

MRS. LAUREN ASHLEY SHARIS P.T., D.P.T

Physical Therapist

300 LONGWOOD AVE
BOSTON, MA 02115

Suffolk County (617) 355-7216

MS. SOYUN KWAN LICSW

Social Worker (Clinical)

300 LONGWOOD AVE, CHILDREN'S HOSPITAL BOSTON
BOSTON, MA 02115

Suffolk County (617) 355-0567

PUJA BANKA M.D.

Pediatrics

300 LONGWOOD AVE, BADER 203
BOSTON, MA 02115

Suffolk County (617) 355-6363

MR. COURTNEY SULLIVAN FRATTO CPNP

Nurse Practitioner (Pediatrics)

300 LONGWOOD AVE, HUNNEWELL BUILDING 322
BOSTON, MA 02115

Suffolk County (857) 218-4085

DR. ELIZABETH S TAGLAUER M.D., PH.D.

Pediatrics (Neonatal-Perinatal Medicine)

300 LONGWOOD AVE
BOSTON, MA 02115

Suffolk County (617) 355-6000

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 Michael Gaffney's NPI number?

The NPI number for Michael Gaffney is 1346702446. It was assigned to this individual provider in the NPPES registry on April 5, 2019.

Where is Michael Gaffney located?

Michael Gaffney practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6000.

What is Michael Gaffney's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Developmental - Behavioral Pediatrics, with taxonomy code 2080P0006X.

When was this NPI record last updated?

The NPPES record for Michael Gaffney was last updated on September 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days 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.