Firefly Medical Group PC
NPI 1225537533 · Internal Medicine Physician · Watertown, MA
Firefly Medical Group PC is a Internal Medicine Physician organization in Watertown, MA (NPI 1225537533).
Provider details
- NPI number
- 1225537533
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Jeffrey Greenberg, Vice President(781) 291-3042
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-02-02
- Last updated
- 2024-11-26
- Certified
- 2024-11-26
Frequently asked questions
- What is Firefly Medical Group PC's NPI number?
- Firefly Medical Group PC's National Provider Identifier (NPI) is 1225537533, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Firefly Medical Group PC?
- Firefly Medical Group PC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Firefly Medical Group PC located?
- Firefly Medical Group PC's practice location on file with NPPES is 260 Arsenal Pl, Watertown, MA 02472-3171.
- What is Firefly Medical Group PC's phone number?
- The practice phone number listed in the NPPES registry for Firefly Medical Group PC is (888) 897-1887.
- Who is the authorized official for Firefly Medical Group PC?
- The authorized official listed on Firefly Medical Group PC's NPPES record is Jeffrey Greenberg, Vice President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Firefly Medical Group PC's NPI active?
- Yes — Firefly Medical Group PC's NPI (1225537533) is active in the NPPES registry as of the last update on 2024-11-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.