Gianna Perrotti, M.S.W.
NPI 1174912869 · Social Worker · Waterbury, CT
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gianna Perrotti, M.S.W. is a Social Worker provider in Waterbury, CT (NPI 1174912869).
Provider details
- NPI number
- 1174912869
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- M.S.W.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Clinical Social Worker1041C0700X
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
981 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Psychotherapy, 30 Minutes90832 | 939 | $62 |
| Psychiatric Diagnostic Evaluation90791 | 42 | $136 |
Typical Medicare-allowed amounts for these services range $62–$136 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 228 Meadow St Ste 201Waterbury, CT 06702-1807Phone: (203) 805-7843Fax: (475) 522-8667
Registry dates
- Enumerated
- 2015-01-18
- Last updated
- 2025-11-18
- Certified
- 2025-11-18
Frequently asked questions
- What is Gianna Perrotti's NPI number?
- Gianna Perrotti's National Provider Identifier (NPI) is 1174912869, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gianna Perrotti's specialty?
- Gianna Perrotti is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Gianna Perrotti located?
- Gianna Perrotti's practice location on file with NPPES is 50 Brookside Rd, Waterbury, CT 06708-1402.
- What is Gianna Perrotti's phone number?
- The practice phone number listed in the NPPES registry for Gianna Perrotti is (203) 755-4490.
- Does Gianna Perrotti accept Medicare?
- Gianna Perrotti is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gianna Perrotti's NPI active?
- Yes — Gianna Perrotti's NPI (1174912869) is active in the NPPES registry as of the last update on 2025-11-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.