Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Carl K Gjertson, M.D.
Urology Physician in Farmington, CT · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1063472017
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Registry record
Entity type Individual (Type 1)
Name Carl K Gjertson
Credential M.D.
Sex Male
Practice address 263 Farmington Ave, Urology, Farmington, CT, 06030
Phone (860) 679-4100
Fax (860) 679-1390
Enumeration date Mar 24, 2006
Last updated in NPPES Nov 12, 2025
Taxonomy & licenses
2088P0231X Pediatric Urology Physician Allopathic & Osteopathic Physicians · License 045171 (CT) Secondary
208800000X Urology Physician Allopathic & Osteopathic Physicians · License 25MA12258300 (NJ) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1063472017 | Medicaid | CT | - |
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.
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 Carl Gjertson?
Carl Gjertson is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Michael Giordano Neurological Surgery Physician · Farmington, CT NPI 1609879519 Kevin Dieckhaus Infectious Disease Physician · Farmington, CT NPI 1316942378 University of Connecticut Health Center General Practice Physician · Farmington, CT NPI 1720083769 Clifford Yang Diagnostic Radiology Physician · Farmington, CT NPI 1295730976 Jonathan Covault Psychiatry Physician · Farmington, CT NPI 1619972395 Nancy Adams Nephrology Physician · Farmington, CT NPI 1770588592 Douglas D'Andrea Internal Medicine Physician · Farmington, CT NPI 1073518767 Jane Grant-Kels Dermatology Physician · Farmington, CT NPI 1750386462
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-12.