Maria Passaro Henry, MD
NPI 1144250630 · Internal Medicine Physician · Hamden, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Passaro Henry, MD is a Internal Medicine Physician provider in Hamden, CT (NPI 1144250630).
Provider details
- NPI number
- 1144250630
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 035672 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,002 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) |
|---|---|---|
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Each Additional Hour96366 | 389 | $21 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 198 | $67 |
| Refilling and Maintenance of Portable Pump96521 | 198 | $133 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 198 | $95 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 19 | $117 |
Typical Medicare-allowed amounts for these services range $21–$133 (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)
- 112 Main StreetNorwalk, CT 06851Phone: (203) 847-4477Fax: (203) 847-3186
Registry dates
- Enumerated
- 2006-07-03
- Last updated
- 2021-08-23
- Certified
- 2021-08-23
Frequently asked questions
- What is Maria Passaro Henry's NPI number?
- Maria Passaro Henry's National Provider Identifier (NPI) is 1144250630, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Passaro Henry's specialty?
- Maria Passaro Henry is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Passaro Henry located?
- Maria Passaro Henry's practice location on file with NPPES is 3594 Whitney Ave, Hamden, CT 06518-1560.
- What is Maria Passaro Henry's phone number?
- The practice phone number listed in the NPPES registry for Maria Passaro Henry is (203) 233-6324.
- Does Maria Passaro Henry accept Medicare?
- Maria Passaro Henry is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Passaro Henry's NPI active?
- Yes — Maria Passaro Henry's NPI (1144250630) is active in the NPPES registry as of the last update on 2021-08-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.