Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Firefly Medical Group PC

Organization Internal Medicine Physician · NPI 1861279705

Firefly Medical Group PC is an Internal Medicine Physician in Watertown, Massachusetts. Registered with an NPI since 2023.

In the registry since
2023
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

260 Arsenal Pl
Watertown, MA 02472-3171
Phone: (888) 897-1887
Fax: (857) 343-8192
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X

Record details

NPI number1861279705
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Jeffrey Greenberg — Clinician · (781) 291-3042
NPI enumeratedSeptember 13, 2023
Last updated in NPPESNovember 26, 2024
Certification dateNovember 26, 2024
Mailing addressPo Box 211639, Eagan, MN 55121-3639

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