Catherine Mezzacappa, MD
Gastroenterology Physician · West Haven, CT
Catherine Mezzacappa, MD is a gastroenterology physician with a practice address in West Haven, Connecticut, and NPI 1952891327, issued on May 11, 2018. Check the license (Connecticut 79298, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Catherine Mezzacappa
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 79298 CT
Self-reported in NPPES; status is on the state search - Practice location
- 950 Campbell Ave, West Haven, CT 06516
- Phone
- (203) 932-5711
- Enumerated
- May 11, 2018
- Record last updated
- Jan 22, 2026
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 336 in Connecticut → Look up another NPI →
Also registered at 950 Campbell Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Abbott, LCSWSocial Worker1790734986
- Erica Abel, PH.D.Clinical Psychologist1982971222
- Audrey Abelleira, PHARMDPharmacist1831671577
- Mary Abraham, PHARMDPharmacist1386344950
- Linda Accordino, RN, MSNGerontology Nurse Practitioner1396853289
- Jenna Adamowicz, PH.D.Clinical Psychologist1356271266
Verify Catherine Mezzacappa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 79298Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average gastroenterology physician in 2024
32 Medicare Part D claims, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
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.
Catherine Mezzacappa among 336 gastroenterology physician records in Connecticut
Catherine Mezzacappa, MD 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 2018, is newer than 92% of them.
- NPI issued2018 · 92% of these records are older, 4% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileNo · 76% of these records are
- Record last updated2026 · 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 West Haven → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Amy Bortzfield, MDWest Haven, CT 065161134276090
- Gyanprakash Ketwaroo, M.D.West Haven, CT 065161083819635
- Loren Laine, M.D.West Haven, CT 065161336172170
- Wajahat Mehal, MDWest Haven, CT 065161487637781
- Petr Protiva, MDWest Haven, CT 065161962447409
- Francis Chan, MDHamden, CT 065181326140674
- Dean Chang, MDHamden, CT 065181770564247
- Ramnath Hebbar, MDHamden, CT 065181124045992
Common questions
What is Catherine Mezzacappa, MD's NPI number?
Catherine Mezzacappa, MD's National Provider Identifier (NPI) is 1952891327, issued on May 11, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Mezzacappa, MD located?
The NPPES record lists a practice address at 950 Campbell Ave, West Haven, CT, 06516. Phone: (203) 932-5711. Providers update this record themselves, so call before visiting.
How can I verify Catherine Mezzacappa, MD's license?
NPPES lists Connecticut license number 79298, 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 Catherine Mezzacappa, MD prescribe under Medicare Part D?
In 2024, Catherine Mezzacappa, MD had 32 Medicare Part D claims; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
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.