What is Louis Hart's NPI number?

Louis Hart's National Provider Identifier (NPI) is 1548617079, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Louis Hart's specialty?

Louis Hart is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).

Where is Louis Hart located?

Louis Hart's practice location on file with NPPES is 1 Park St, New Haven, CT 06504-8901.

What is Louis Hart's phone number?

The practice phone number listed in the NPPES registry for Louis Hart is (475) 837-1246.

Does Louis Hart accept Medicare?

Louis Hart is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Louis Hart's NPI active?

Yes — Louis Hart's NPI (1548617079) is active in the NPPES registry as of the last update on 2023-09-27.

IndividualActiveAccepts Medicare

Louis Hart, M.D.

NPI 1548617079 · Pediatrics Physician · New Haven, CT

Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Louis Hart, M.D. is a Pediatrics Physician provider in New Haven, CT (NPI 1548617079).

Provider details

NPI number: 1548617079
Entity type: Individual
Primary specialty: Pediatrics PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: Yes
License: 297880 (NY)

Specialties & taxonomies

Pediatrics PhysicianPrimary208000000XLicense 68887 (CT)
Allopathic & Osteopathic Physicians
Pediatrics Physician208000000XLicense 297880 (NY)
Allopathic & Osteopathic Physicians
Student in an Organized Health Care Education/Training Program390200000X
Student, Health Care

Profile Score

Detailed profile(81/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
10 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
3 documented practice locations

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

1 Park St

New Haven, CT 06504-8901

Phone: (475) 837-1246

Approximate (ZIP-level) locationGet directions

More CT providers

Mailing address

430 Congress Ave

New Haven, CT 06519-1313

Additional practice locations (2)

550 1st Ave
New York, NY 10016-6402
Phone: (212) 562-6341
462 1st Ave
Nbv8s3
New York, NY 10016-9196
Phone: (212) 263-5506

Enumerated: 2016-05-13
Last updated: 2023-09-27
Certified: 2023-09-27

Frequently asked questions

What is Louis Hart's NPI number?: Louis Hart's National Provider Identifier (NPI) is 1548617079, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Louis Hart's specialty?: Louis Hart is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
Where is Louis Hart located?: Louis Hart's practice location on file with NPPES is 1 Park St, New Haven, CT 06504-8901.
What is Louis Hart's phone number?: The practice phone number listed in the NPPES registry for Louis Hart is (475) 837-1246.
Does Louis Hart accept Medicare?: Louis Hart is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Louis Hart's NPI active?: Yes — Louis Hart's NPI (1548617079) is active in the NPPES registry as of the last update on 2023-09-27.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.