Frank S. Sammarco, M.D.
Gastroenterology Physician · Norwalk, CT
Frank S. Sammarco, M.D. is a gastroenterology physician with a practice address in Norwalk, Connecticut, and NPI 1407953920, issued on Sep 19, 2006. Check the license (Connecticut 029157, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Frank S. Sammarco
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 029157 CT
Self-reported in NPPES; status is on the state search - Practice location
- 761 Main Ave, Norwalk, CT 06851
- Phone
- (203) 838-4000
- Enumerated
- Sep 19, 2006
- Record last updated
- Dec 16, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (203) 845-9535
- Medicaid ID
- 004187466 CT
- Medicare enrollment
- Enrolled (PECOS I20100119000401); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 336 in Connecticut → Look up another NPI →
Also registered at 761 Main Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Charles Adelmann, M.D.Gastroenterology Physician1861436511
- Stella Arbitman, M.D., CCFPFamily Medicine Physician1467726141
- Thomas Ayoub, MDObstetrics & Gynecology Physician1700990652
- Kristen Baker, PA CMedical Physician Assistant1427061100
- Sharyu Bande, MDInternal Medicine Physician1619130705
- Cindy Barboza, APRNFamily Nurse Practitioner1528499951
Verify Frank S. Sammarco in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 029157Check 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 gastroenterology physician in 2024
2,114 Medicare Part D claims for 743 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Omeprazole583 claims
- Pantoprazole Sodium398 claims
- Sod Sulf-Potass Sulf-Mag Sulf170 claims
- Sutab161 claims
- Dicyclomine Hcl131 claims
- Famotidine106 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).
Industry payments in 2024: $646.62
32 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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.
Bills Medicare through one group practice
- Hartford Healthcare Medical Group Specialists PLLCStorrs, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Frank S. Sammarco among 336 gastroenterology physician records in Connecticut
Frank S. Sammarco, M.D. 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 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 49% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated1979 · median 2001 among the 255 with a school on file
- Record last updated2011 · 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 Norwalk → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Charles Adelmann, M.D.Norwalk, CT 068511861436511
- Harvey Riback, M.D.Norwalk, CT 068511225148281
- Brian Schwender, M.D.Norwalk, CT 068511336260561
- Ajay Singh, M.D.Norwalk, CT 068511629451026
- Kirk Zachary, M.D.Norwalk, CT 068511376537563
- Alexander Abadir, MDNorwalk, CT 068501811429699
- Subin Chirayath, DONorwalk, CT 068501518525336
- Carlos Figueredo Alcala, MDNorwalk, CT 068501699252023
Common questions
What is Frank S. Sammarco, M.D.'s NPI number?
Frank S. Sammarco, M.D.'s National Provider Identifier (NPI) is 1407953920, issued on Sep 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Frank S. Sammarco, M.D. located?
The NPPES record lists a practice address at 761 Main Ave, Norwalk, CT, 06851. Phone: (203) 838-4000. Providers update this record themselves, so call before visiting.
How can I verify Frank S. Sammarco, M.D.'s license?
NPPES lists Connecticut license number 029157, 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 Frank S. Sammarco, M.D. prescribe under Medicare Part D?
In 2024, Frank S. Sammarco, M.D. had 2,114 Medicare Part D claims for 743 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Frank S. Sammarco, M.D.'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.