NPI Portal NPI Lookup & Verification

John Ramirez, MD

John Ramirez is a Pediatric Adolescent Medicine Physician provider (Pediatrics) practicing in North Haven, CT, registered in the NPPES registry with NPI 1659781383 since 2014. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1659781383
Entity type Individual (Type 1)
Name John Ramirez
Credential MD
Sex Male
Practice address North Haven, CT, 06473
Phone 2032488888
Fax 2032488889
Enumeration date 2014-05-02
Last updated in NPPES 2022-07-21

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
2080A0000X Pediatric Adolescent Medicine Physician Primary 56496 CT

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Copy-ready billing details
Provider: John Ramirez, MD
NPI: 1659781383
Taxonomy: 2080A0000X (Pediatric Adolescent Medicine Physician)
Address: North Haven, CT, 06473

Other providers at this practice address

NPI Name Type Specialty Location
1720048150 Liesel Gould Individual Pediatric Adolescent Medicine Physician North Haven, CT
1275697310 Michelle Caserta Individual Pediatrics Physician North Haven, CT
1659435600 Linda Jacobson Individual Pediatric Nurse Practitioner North Haven, CT
1639220544 Joan Sloan Individual Clinical Social Worker North Haven, CT
1063548428 Mary Peterson Individual Pediatric Nurse Practitioner North Haven, CT
1871731927 Complete Pediatrics Organization Pediatric Adolescent Medicine Physician North Haven, CT
1720479025 Ethan Parker Individual Professional Counselor North Haven, CT
1619368677 Madeleine Fejos Individual Clinical Social Worker North Haven, CT

Verify this record

Cross-check NPI 1659781383 against the authoritative CMS record: view John Ramirez on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is John Ramirez?
John Ramirez is registered in NPPES with the primary taxonomy of Pediatric Adolescent Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2022-07-21.