NPPES file of Aug 9, 2026

Heather M. Nisbeth, M.D.

Gastroenterology Physician · Southbury, CT

Heather M. Nisbeth, M.D. is a gastroenterology physician with a practice address in Southbury, Connecticut, and NPI 1912952243, issued on May 24, 2006. Check the license (Connecticut 032576, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912952243
Name
Heather M. Nisbeth
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
032576 CT
Self-reported in NPPES; status is on the state search
Practice location
22 Old Waterbury RD, Southbury, CT 06488
Phone
(203) 264-6503
Enumerated
May 24, 2006
Record last updated
Jul 20, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(203) 262-1430
Medicaid ID
004394532 CT
Medicare enrollment
Enrolled (PECOS I20120117000608); accepts Medicare assignment
Medical or professional school
State University Of New York At Buffalo School Of Medicine, 1989
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 22 Old Waterbury RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sandra Biolo, A.P.R.N.Adult Health Nurse Practitioner1700978426
  2. Robert Carr, M.D.Family Medicine Physician1538196795
  3. Linda Eglit, APRNGerontology Nurse Practitioner1306529797
  4. Heather Fleming, PTPhysical Therapist1972125540
  5. Virginia Hannon, A.P.R.N.Gerontology Nurse Practitioner1780776344
  6. Agata Jaskiewicz-Poznanska, M.D.Family Medicine Physician1114148558

Verify Heather M. Nisbeth in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 032576
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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3.9 times the Medicare Part D claims of the average gastroenterology physician in 2024

3,144 Medicare Part D claims for 368 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 21 claims were for opioids.

  1. Heather Nisbeth3,144
  2. Specialty average811

Most prescribed

  1. Atorvastatin Calcium230 claims
  2. Levothyroxine Sodium205 claims
  3. Amlodipine Besylate178 claims
  4. Rosuvastatin Calcium145 claims
  5. Losartan Potassium114 claims
  6. Metoprolol Succinate111 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.

Bills Medicare through one group practice

  1. Prospect CT Medical Foundation IncManchester, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Heather M. Nisbeth among 336 gastroenterology physician records in Connecticut

Heather M. Nisbeth, 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
  • Graduated1989 · median 2001 among the 255 with a school on file
  • Record last updated2010 · 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.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Anant Agarwalla, M.D.Wallingford, CT 064921326458589
  2. Prakash Huded, MDPortland, CT 064801760467237
  3. Karen Dufour, M.D.Orange, CT 064771609859842
  4. Taneisha Grant, M.D.North Haven, CT 064731457534828
  5. Harry Aslanian, MDNew Haven, CT 065101295718401
  6. Sidney Bogardus, MDNew Haven, CT 065101730131103
  7. James Boyer, M.D.New Haven, CT 065101447233267
  8. Samuel Feldshon, MDNew Haven, CT 065101861464547

Common questions

What is Heather M. Nisbeth, M.D.'s NPI number?

Heather M. Nisbeth, M.D.'s National Provider Identifier (NPI) is 1912952243, issued on May 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Heather M. Nisbeth, M.D. located?

The NPPES record lists a practice address at 22 Old Waterbury RD, Southbury, CT, 06488. Phone: (203) 264-6503. Providers update this record themselves, so call before visiting.

How can I verify Heather M. Nisbeth, M.D.'s license?

NPPES lists Connecticut license number 032576, 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 Heather M. Nisbeth, M.D. prescribe under Medicare Part D?

In 2024, Heather M. Nisbeth, M.D. had 3,144 Medicare Part D claims for 368 beneficiaries; 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.