Gregory J. Bombassei, MD
Endocrinology, Diabetes & Metabolism Physician · Avon, CT
Gregory J. Bombassei, MD is an endocrinology, diabetes & metabolism physician with a practice address in Avon, Connecticut, and NPI 1962582718, issued on Oct 16, 2006. Check the license (Connecticut 032434, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Gregory J. Bombassei
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 032434 CT
Self-reported in NPPES; status is on the state search - Practice location
- 44 Dale RD Ste 201, Avon, CT 06001
- Phone
- (860) 679-0234
- Enumerated
- Oct 16, 2006
- Record last updated
- Dec 13, 2023
- Medicare enrollment
- Enrolled (PECOS I20050714000466); accepts Medicare assignment
- Medical or professional school
- University Of Connecticut School Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 214 in Connecticut → Look up another NPI →
Verify Gregory J. Bombassei in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 032434Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average endocrinology, diabetes & metabolism physician in 2024
6,958 Medicare Part D claims for 688 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Levothyroxine Sodium826 claims
- Jardiance376 claims
- Metformin Hcl370 claims
- Mounjaro357 claims
- Synthroid266 claims
- Lantus Solostar250 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): 91.8 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).
Industry payments in 2024: $246.51
13 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 5,661 providers of this specialty with any payment received $5,742.15 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.
Gregory J. Bombassei among 214 endocrinology, diabetes & metabolism physician records in Connecticut
Gregory J. Bombassei, MD is one of 214 endocrinology, diabetes & metabolism physician records with a practice address in Connecticut. 83% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1988 · median 2004 among the 145 with a school on file
- Record last updated2023 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Connecticut
There are 214 endocrinology, diabetes & metabolism physician records in Connecticut.
All 214 in Connecticut → Every provider in Avon → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- David Domenichini, M.D.Bloomfield, CT 060021225004922
- Joel Miller, M.D.Bloomfield, CT 060021336180579
- Khary Edwards, MDBristol, CT 060101457889024
- Vijay Joshi, MDBristol, CT 060101174522692
- Andrew Arnold, MDFarmington, CT 060301003812520
- Ernesto Canalis, M.D.Farmington, CT 060301316925514
- Vitaly Kantorovich, MDFarmington, CT 060301902914724
- Joseph Lorenzo, MDFarmington, CT 060301881690030
Common questions
What is Gregory J. Bombassei, MD's NPI number?
Gregory J. Bombassei, MD's National Provider Identifier (NPI) is 1962582718, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory J. Bombassei, MD located?
The NPPES record lists a practice address at 44 Dale RD Ste 201, Avon, CT, 06001. Phone: (860) 679-0234. Providers update this record themselves, so call before visiting.
How can I verify Gregory J. Bombassei, MD's license?
NPPES lists Connecticut license number 032434, 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 J. Bombassei, MD prescribe under Medicare Part D?
In 2024, Gregory J. Bombassei, MD had 6,958 Medicare Part D claims for 688 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Gregory J. Bombassei, MD's MIPS final score?
The 2023 MIPS final score is 91.8 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.