Gregory Wagner
Gastroenterology Physician · Stamford, CT
Gregory Wagner is a gastroenterology physician with a practice address in Stamford, Connecticut, and NPI 1215342423, issued on Jun 25, 2014. Check the license (Connecticut 67480, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Gregory Wagner
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 67480 CT
Self-reported in NPPES; status is on the state search - Practice location
- 32 Strawberry Hill CT Ste 41042, Stamford, CT 06902
- Phone
- (203) 348-5355
- Enumerated
- Jun 25, 2014
- Record last updated
- Aug 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (203) 348-4082
- Medicare enrollment
- Enrolled (PECOS I20210514000783); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 336 in Connecticut → Look up another NPI →
Verify Gregory Wagner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 67480Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average gastroenterology physician in 2024
187 Medicare Part D claims for 72 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Omeprazole40 claims
- Pantoprazole Sodium20 claims
- Gavilyte-G14 claims
- Linzess12 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): 94.2 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
- Nuvance Health Medical Practice CT IncDanbury, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Wagner among 336 gastroenterology physician records in Connecticut
Gregory Wagner is one of 336 gastroenterology physician records with a practice address in Connecticut. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 85% of them.
- NPI issued2014 · 85% of these records are older, 13% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2014 · median 2001 among the 255 with a school on file
- Record last updated2021 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Connecticut
There are 336 gastroenterology physician records in Connecticut.
All 336 in Connecticut → Every provider in Stamford → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Jamil Alexis, MDStamford, CT 069021164927968
- Henry Beecher, M.D.Stamford, CT 069021396949582
- Robert Dettmer, MDStamford, CT 069021679648281
- Suma Magge, MDStamford, CT 069021619134392
- Robert Plansky, MDStamford, CT 069021780635888
- Frederick Rozenshteyn, MDStamford, CT 069021609309558
- Amy Smithline, MDStamford, CT 069021538234240
- Stuart Waldstreicher, M.DStamford, CT 069021114913894
Common questions
What is Gregory Wagner's NPI number?
Gregory Wagner's National Provider Identifier (NPI) is 1215342423, issued on Jun 25, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Wagner located?
The NPPES record lists a practice address at 32 Strawberry Hill CT Ste 41042, Stamford, CT, 06902. Phone: (203) 348-5355. Providers update this record themselves, so call before visiting.
How can I verify Gregory Wagner's license?
NPPES lists Connecticut license number 67480, 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 Wagner prescribe under Medicare Part D?
In 2024, Gregory Wagner had 187 Medicare Part D claims for 72 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Gregory Wagner's MIPS final score?
The 2023 MIPS final score is 94.2 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.