Gregory Flis, AGPCNP-BC
Adult Health Nurse Practitioner · New Haven, CT
Gregory Flis, AGPCNP-BC is an adult health nurse practitioner with a practice address in New Haven, Connecticut, and NPI 1922484161, issued on Aug 10, 2015. Check the license (Connecticut 6221, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Flis
- Credential
- AGPCNP-BC
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License number
- 6221 CT
Self-reported in NPPES; status is on the state search - Practice location
- 1 Long Wharf Dr, New Haven, CT 06511
- Phone
- (203) 688-8800
- Enumerated
- Aug 10, 2015
- Record last updated
- Feb 18, 2026
- Medicare enrollment
- Enrolled (PECOS I20151125001520); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 628 in Connecticut → Look up another NPI →
Also registered at 1 Long Wharf Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Casey Altomaro, BACounselor1912754201
- Donna Andreozzi, RNRegistered Nurse1992178172
- Ronald Angoff, MDPediatrics Physician1205923661
- Obinna AnosikeFamily Medicine Physician1043871957
- Ashley Antonucci, DNP- FNPFamily Nurse Practitioner1003463159
- Tracey Appleget, LCSWClinical Social Worker1427413988
Verify Gregory Flis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 6221Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024
248 Medicare Part D claims for 103 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. 54 claims were for opioids.
Most prescribed
- Oxycodone Hcl43 claims
- Gabapentin38 claims
- Baclofen20 claims
- Tizanidine Hcl16 claims
- Diclofenac Sodium13 claims
- Diclofenac Potassium12 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 practice group's MIPS final score for 2023 (Medicare payment program): 84.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Hartford Healthcare Medical Group Specialists PLLCHartford, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Flis among 628 adult health nurse practitioner records in Connecticut
Gregory Flis, AGPCNP-BC is one of 628 adult health nurse practitioner records with a practice address in Connecticut. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 64% of them.
- NPI issued2015 · 64% of these records are older, 32% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2015 · median 2013 among the 332 with a school on file
- Record last updated2026 · 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 363LA2200X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Health Nurse Practitioner providers in Connecticut
There are 628 adult health nurse practitioner records in Connecticut.
All 628 in Connecticut → Every provider in New Haven → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Margaret Becker, A.P.R.N.New Haven, CT 065111659570182
- Hollister Berry, NPNew Haven, CT 065111174719405
- Amanda Brei-Moeller, A.P.R.N.New Haven, CT 065111811183981
- Jessica Cave, AGPCNP-BCNew Haven, CT 065111922556869
- Kathleen Crawford, A.P.R.N.New Haven, CT 065111457390445
- Lauren Danis, NP-CNew Haven, CT 065111841556016
- Amy Davis, APRNNew Haven, CT 065111922044155
- Kathy HeardNew Haven, CT 065111497029060
Common questions
What is Gregory Flis, AGPCNP-BC's NPI number?
Gregory Flis, AGPCNP-BC's National Provider Identifier (NPI) is 1922484161, issued on Aug 10, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Flis, AGPCNP-BC located?
The NPPES record lists a practice address at 1 Long Wharf Dr, New Haven, CT, 06511. Phone: (203) 688-8800. Providers update this record themselves, so call before visiting.
How can I verify Gregory Flis, AGPCNP-BC's license?
NPPES lists Connecticut license number 6221, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory Flis, AGPCNP-BC prescribe under Medicare Part D?
In 2024, Gregory Flis, AGPCNP-BC had 248 Medicare Part D claims for 103 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. Part D covers Medicare prescriptions only.
What is Gregory Flis, AGPCNP-BC's MIPS final score?
The 2023 MIPS final score is 84.5 of 100, reported for the practice group. 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.