Gregory R. Czarnecki, D.O.
Sports Medicine (Internal Medicine) Physician · Glastonbury, CT
Gregory R. Czarnecki, D.O. is a sports medicine (internal medicine) physician with a practice address in Glastonbury, Connecticut, and NPI 1245278472, issued on Jun 2, 2006. Check the license (Connecticut 044289, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Gregory R. Czarnecki
- Credential
- D.O.
- Primary taxonomy
- Sports Medicine (Internal Medicine) Physician 207RS0010X
- License number
- 044289 CT
Self-reported in NPPES; status is on the state search - Practice location
- 676 Hebron Avenue, Glastonbury, CT 06033
- Phone
- (860) 696-2250
- Enumerated
- Jun 2, 2006
- Record last updated
- Jan 11, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (860) 696-2260
- Medicare enrollment
- Enrolled (PECOS I20060621000143); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 2002
- Entity
- Type 1 · individual
2 nearest sports medicine (internal medicine) physician records → All 3 in Connecticut → Look up another NPI →
Verify Gregory R. Czarnecki in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 044289Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.0 times the Medicare Part D claims of the average sports medicine (internal medicine) physician in 2024
3,642 Medicare Part D claims for 343 beneficiaries, against an average of 605 among the 227 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 165 claims were for opioids.
Most prescribed
- Atorvastatin Calcium233 claims
- Levothyroxine Sodium136 claims
- Lisinopril121 claims
- Rosuvastatin Calcium97 claims
- Amlodipine Besylate95 claims
- Metformin Hcl Er91 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.
The MIPS final score for 2023 (Medicare payment program): 93.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Hartford Healthcare Medical Group IncSouthington, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sports Medicine (Internal Medicine) Physician providers in Connecticut
There are 3 sports medicine (internal medicine) physician records in Connecticut.
All 3 in Connecticut → Every provider in Glastonbury → Sports Medicine (Internal Medicine) Physician nationwide →
The 2 sports medicine (internal medicine) physician records with the nearest ZIP codes
- Deena Casiero, M.D.Farmington, CT 060301730313461
- Calan Sowa, M.D.New Britain, CT 060521164954905
Common questions
What is Gregory R. Czarnecki, D.O.'s NPI number?
Gregory R. Czarnecki, D.O.'s National Provider Identifier (NPI) is 1245278472, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory R. Czarnecki, D.O. located?
The NPPES record lists a practice address at 676 Hebron Avenue, Glastonbury, CT, 06033. Phone: (860) 696-2250. Providers update this record themselves, so call before visiting.
How can I verify Gregory R. Czarnecki, D.O.'s license?
NPPES lists Connecticut license number 044289, 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 Gregory R. Czarnecki, D.O. prescribe under Medicare Part D?
In 2024, Gregory R. Czarnecki, D.O. had 3,642 Medicare Part D claims for 343 beneficiaries; the average among sports medicine (internal medicine) physician prescribers was 605. Part D covers Medicare prescriptions only.
What is Gregory R. Czarnecki, D.O.'s MIPS final score?
The 2023 MIPS final score is 93.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.