Michael Maccio
NPI 1821800020 · Surgical Physician Assistant · Stamford, CT
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Maccio is a Surgical Physician Assistant provider in Stamford, CT (NPI 1821800020).
Provider details
- NPI number
- 1821800020
- Entity type
- Individual
- Primary specialty
- Surgical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
83% 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
- 2025-01-23
- Last updated
- 2025-04-22
- Certified
- 2025-04-22
Frequently asked questions
- What is Michael Maccio's NPI number?
- Michael Maccio's National Provider Identifier (NPI) is 1821800020, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Maccio's specialty?
- Michael Maccio is listed in the NPPES registry with a primary specialty of Surgical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Michael Maccio located?
- Michael Maccio's practice location on file with NPPES is 1 Hospital Plz, Stamford, CT 06902-3602.
- What is Michael Maccio's phone number?
- The practice phone number listed in the NPPES registry for Michael Maccio is (203) 276-7470.
- Does Michael Maccio accept Medicare?
- Michael Maccio is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Maccio's NPI active?
- Yes — Michael Maccio's NPI (1821800020) is active in the NPPES registry as of the last update on 2025-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.