Carl K. Gjertson, M.D.
Urology Physician · Farmington, CT
Carl K. Gjertson, M.D. is a urology physician with a practice address in Farmington, Connecticut, and NPI 1063472017, issued on Mar 24, 2006. Check the license (Connecticut 045171, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Carl K. Gjertson
- Credential
- M.D.
- Primary taxonomy
- Urology Physician 208800000X
- License numbers
- 045171 CT
25MA12258300 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 263 Farmington Ave, Farmington, CT 06030
- Phone
- (860) 679-4100
- Enumerated
- Mar 24, 2006
- Record last updated
- Nov 12, 2025
- Fax
- (860) 679-1390
- Medicaid ID
- 1063472017 CT
- Medicare enrollment
- Enrolled (PECOS I20240814001487); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 2001
- Entity
- Type 1 · individual
8 nearest urology physician records → All 185 in Connecticut → Look up another NPI →
Also registered at 263 Farmington Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nour Abdallah, MDStudent in an Organized Health Care Education/Training Program1225882509
- Omar Abdelatey, DDSStudent in an Organized Health Care Education/Training Program1700672789
- Samira AbdelrehimStudent in an Organized Health Care Education/Training Program1225823743
- Reham AbdelsalamStudent in an Organized Health Care Education/Training Program1578143707
- Ezzat Abdoun, DDSStudent in an Organized Health Care Education/Training Program1962630905
- Arif Salman Abdul Shakore, B.D.S., M.D.S.Student in an Organized Health Care Education/Training Program1750797387
Verify Carl K. Gjertson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 045171Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average urology physician in 2024
1,045 Medicare Part D claims for 261 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D.
Most prescribed
- Finasteride386 claims
- Tamsulosin Hcl365 claims
- Potassium Citrate Er71 claims
- Allopurinol37 claims
- Nitrofurantoin Mono-Macro29 claims
- Sulfamethoxazole-Trimethoprim22 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $139.63
8 payments; by number, the most common kind was food and beverage; the largest payer was Genmab U.S., Inc. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 4 group practices
- Cape Physicians Associates PACape May Court House, NJ
- Hackensack Meridian Health Medical Group - Specialty Care PCManahawkin, NJ
- Jersey Urology Group P. A.Somers Point, NJ
- Shore Specialty ConsultantsSomers Point, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carl K. Gjertson among 185 urology physician records in Connecticut
Carl K. Gjertson, M.D. is one of 185 urology physician records with a practice address in Connecticut. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 19% of them.
- NPI issued2006 · 19% of these records are older, 52% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2001 · median 2006 among the 127 with a school on file
- Record last updated2025 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Urology Physician providers in Connecticut
There are 185 urology physician records in Connecticut.
All 185 in Connecticut → Every provider in Farmington → Urology Physician nationwide →
The 8 urology physician records with the nearest ZIP codes
- Peter Albertsen, M.D.Farmington, CT 060301811992639
- Brooke Harnisch, MDFarmington, CT 060301528233988
- Jennifer Lindelof, MDFarmington, CT 060301992325088
- Philip Olson, MDFarmington, CT 060301316573421
- Douglas Ridyard, M.D.Farmington, CT 060301639532872
- Christian Bartels, M.D.Farmington, CT 060321508279100
- Ryan Dorin, M.D.Farmington, CT 060321679718175
- Jill Peters-Gee, MDFarmington, CT 060321447341961
Common questions
What is Carl K. Gjertson, M.D.'s NPI number?
Carl K. Gjertson, M.D.'s National Provider Identifier (NPI) is 1063472017, issued on Mar 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carl K. Gjertson, M.D. located?
The NPPES record lists a practice address at 263 Farmington Ave, Farmington, CT, 06030. Phone: (860) 679-4100. Providers update this record themselves, so call before visiting.
How can I verify Carl K. Gjertson, M.D.'s license?
NPPES lists Connecticut license number 045171, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Carl K. Gjertson, M.D. prescribe under Medicare Part D?
In 2024, Carl K. Gjertson, M.D. had 1,045 Medicare Part D claims for 261 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.