Lisa Marie Gronski, D.O.
Internal Medicine Physician · Avon, CT
Lisa Marie Gronski, D.O. is an internal medicine physician with a practice address in Avon, Connecticut, and NPI 1265758577, issued on Apr 12, 2010. Check the license (Connecticut 054041, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Lisa Marie Gronski
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 054041 CT
Self-reported in NPPES; status is on the state search - Practice location
- 339 W Main St, Avon, CT 06001
- Phone
- (860) 696-2150
- Enumerated
- Apr 12, 2010
- Record last updated
- Aug 29, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (860) 696-2160
- Medicare enrollment
- Enrolled (PECOS I20150812007907); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 339 W Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine Black, CRNPFamily Nurse Practitioner1720579840
- Renee Dela ChevrotiereFamily Nurse Practitioner1497622179
- Spencer Erman, MDFamily Medicine Physician1144206699
- David Garry, PA-CMedical Physician Assistant1285718353
- Kristin Ingram, DNPFamily Nurse Practitioner1932703410
- Marcin Jaremko, M.D.Family Medicine Physician1396943080
Verify Lisa Marie Gronski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 054041Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
107 Medicare Part D claims for 30 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Simvastatin18 claims
- Pantoprazole Sodium12 claims
- Furosemide11 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).
Lisa Marie Gronski among 2,623 internal medicine physician records in Connecticut
Lisa Marie Gronski, D.O. is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 62% of them.
- NPI issued2010 · 62% of these records are older, 36% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2010 · median 2004 among the 1,646 with a school on file
- Record last updated2016 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 internal medicine physician records list a practice address in Avon
They are 15 of the 673 NPPES records with a practice address in Avon, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Avon → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ronald Buonomano, MDAvon, CT 060011861597189
- Wayne Chen, MDAvon, CT 060011679640841
- Marie Dam, MDAvon, CT 060011164576062
- Ingrid Grafals, MDAvon, CT 060011538122262
- Joyce Justin, M.D.Avon, CT 060011972748481
- Chi Kim, MDAvon, CT 060011023094125
- Rene Lerer, M.D.Avon, CT 060011982826616
- Lalarukh Mufti, M.D.Avon, CT 060011942352794
Common questions
What is Lisa Marie Gronski, D.O.'s NPI number?
Lisa Marie Gronski, D.O.'s National Provider Identifier (NPI) is 1265758577, issued on Apr 12, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Lisa Marie Gronski, D.O. located?
The NPPES record lists a practice address at 339 W Main St, Avon, CT, 06001. Phone: (860) 696-2150. Providers update this record themselves, so call before visiting.
How can I verify Lisa Marie Gronski, D.O.'s license?
NPPES lists Connecticut license number 054041, 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 Lisa Marie Gronski, D.O. prescribe under Medicare Part D?
In 2024, Lisa Marie Gronski, D.O. had 107 Medicare Part D claims for 30 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Lisa Marie Gronski, 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.