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MARINA GAGNON-DIAZ
NPI 1295419117
Physician Assistant - Medical in Springfield, MA

Active since June 12, 2023PECOS EnrolledAccepts Medicare Assignment
759 CHESTNUT ST STE C3350, SPRINGFIELD, MA 01107(413) 794-4320(413) 794-1767 Get Directions Write a Review

NPPES record last updated: October 8, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Oct 8, 2025, Jun 12, 2023 (2 updates tracked since 2023).

About Marina Gagnon-diaz NPPES

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

MARINA GAGNON-DIAZ (NPI 1295419117) is an individual medical provider in Springfield, Massachusetts, licensed in Massachusetts (PA101860) and active in the NPI registry since June 2023. She is enrolled in Medicare PECOS, is affiliated with Baystate Franklin Medical Center, and is a graduate of Other (2025).

NPPES Registry Identity

NPI1295419117
Entity TypeIndividualFemale
Primary Taxonomy363AM0700X
Provider Legal NameMARINA GAGNON-DIAZ
Location Address759 CHESTNUT ST STE C3350Springfield, MA 01107-1619
Mailing Address280 Chestnut St Fl 2Springfield, MA 01199-1001 · (413) 794-5700
Phone(413) 794-4320
Fax(413) 794-1767
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateJune 12, 2023
Last NPPES UpdateOctober 8, 20252 updates tracked since enumeration
NPPES CertifiedOctober 8, 2025
✔ NPI 1295419117 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AM0700X
License✔ Licensed in MA · PA101860
759 CHESTNUT ST STE C3350, Springfield, MA 01107
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Marina Gagnon-diaz 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.

PECOS PAC ID7810491602
PECOS Enrollment IDI20250916001091
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.

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Baystate Franklin Medical Center

Acute Care Hospitals · Greenfield, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220016
Location164 High StreetGreenfield, MA 01301 · Franklin County
Emergency services Birthing friendly

Baystate Wing Hospital

Acute Care Hospitals · Palmer, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number220030
Location40 Wright StreetPalmer, MA 01069 · Hampden County
Emergency services

Baystate Medical Center

Acute Care Hospitals · Springfield, MA
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220077
Location759 Chestnut StreetSpringfield, MA 01199 · Hampden County
Emergency services Birthing friendly

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.

DR. SAI R. VADHULA MD, PHD
Internal Medicine
759 CHESTNUT ST STE C3350
SPRINGFIELD, MA 01107
Hampden County (413) 794-6297
KYLE EUGENE BARTELS AGACNP-BC
Nurse Practitioner (Acute Care)
759 CHESTNUT ST STE C3350
SPRINGFIELD, MA 01107
Hampden County (413) 794-6297
YANMING CHEN M.D.
Internal Medicine
759 CHESTNUT ST STE C3350
SPRINGFIELD, MA 01107
Hampden County (413) 794-6297
KASHIF MUKHTAR MD
Hospitalist
759 CHESTNUT ST STE C3350
SPRINGFIELD, MA 01107
Hampden County (413) 794-7629
MOLLY HANLON PA
Physician Assistant (Medical)
759 CHESTNUT ST STE C3350
SPRINGFIELD, MA 01107
Hampden County (413) 794-4320
WENDY SIQIAN MA MD
Hospitalist
759 CHESTNUT ST STE C3350
SPRINGFIELD, MA 01107
Hampden County (413) 794-4320
DR. ZAEEM SHAHZAD CHAUDARY DO
Internal Medicine
759 CHESTNUT ST STE C3350
SPRINGFIELD, MA 01107
Hampden County (413) 794-4320
DR. VIDYA B RAMASAMY M.D.,
Internal Medicine
759 CHESTNUT ST STE C3350
SPRINGFIELD, MA 01107
Hampden County (413) 794-6297

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 Marina Gagnon-diaz's NPI number?

The NPI number for Marina Gagnon-diaz is 1295419117. It was assigned to this individual provider in the NPPES registry on June 12, 2023.

Where is Marina Gagnon-diaz located?

Marina Gagnon-diaz practices at 759 Chestnut St Ste C3350, Springfield, MA 01107. The listed phone number is (413) 794-4320.

What is Marina Gagnon-diaz's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Is Marina Gagnon-diaz enrolled in Medicare?

Yes. Marina Gagnon-diaz 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.

What insurance does Marina Gagnon-diaz accept?

Health plans from Anthem Blue Cross and Blue Shield list Marina Gagnon-diaz as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Marina Gagnon-diaz affiliated with any hospitals?

According to CMS data, Marina Gagnon-diaz is affiliated with Baystate Franklin Medical Center, Baystate Wing Hospital and Baystate Medical Center.

When was this NPI record last updated?

The NPPES record for Marina Gagnon-diaz was last updated on October 8, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.