Marc L. Guttman, M.D.
Emergency Medicine Physician · Willimantic, CT
Marc L. Guttman, M.D. is an emergency medicine physician with a practice address in Willimantic, Connecticut, and NPI 1295709186, issued on Feb 15, 2006. Check the license (Connecticut 041783, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Marc L. Guttman
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 041783 CT
Self-reported in NPPES; status is on the state search - Practice location
- 112 Mansfield Ave, Willimantic, CT 06226
- Phone
- (860) 456-9116
- Enumerated
- Feb 15, 2006
- Record last updated
- Jul 29, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (860) 963-6368
- Medicare enrollment
- Enrolled (PECOS I20051228000369); accepts Medicare assignment
- Medical or professional school
- State University Of Ny Upstate Medical University, 2000
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 846 in Connecticut → Look up another NPI →
Also registered at 112 Mansfield Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Adam, M.D.Anesthesiology Physician1427161827
- Katherine Baird, PACPhysician Assistant1962557470
- Erin Bane, DNP CNMMidwife1043842982
- Lori Bernier, LCSWClinical Social Worker1033744289
- Melissa Bohan-Hallenbeck, APRNNurse Practitioner1174931687
- Bevan Bonhomme, MDEmergency Medicine Physician1598386468
Verify Marc L. Guttman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 041783Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% more Medicare Part D claims than the average emergency medicine physician in 2024
368 Medicare Part D claims for 224 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 28 claims were for opioids.
Most prescribed
- Ibuprofen44 claims
- Cephalexin43 claims
- Prednisone32 claims
- Oxycodone-Acetaminophen24 claims
- Famotidine22 claims
- Ondansetron Odt22 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): 92.2 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: $18.66
1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 12,335 providers of this specialty with any payment received $953.79 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
- The William W Backus HospitalNorwich, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marc L. Guttman among 846 emergency medicine physician records in Connecticut
Marc L. Guttman, M.D. is one of 846 emergency medicine 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 6% of them.
- NPI issued2006 · 6% of these records are older, 65% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2000 · median 2011 among the 574 with a school on file
- Record last updated2008 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 emergency medicine physician records list a practice address in Willimantic
They are 12 of the 487 NPPES records with a practice address in Willimantic, and 846 emergency medicine physician records in Connecticut.
All 846 in Connecticut → Every provider in Willimantic → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Bevan Bonhomme, MDWillimantic, CT 062261598386468
- Anna Cranmer, MDWilliamantic, CT 062261497702963
- Orland Donald, M.D.Willimantic, CT 062261265456503
- Thomas GilmoreWillimantic, CT 062261063654614
- Max Goldstein, M.D.Willimantic, CT 062261578754164
- Neil Moynihan, M.D.Willimantic, CT 062261386606523
- Julia Prokesova, MDWillimantic, CT 062261972036416
- Gregory Shangold, MDWillimantic, CT 062261770540262
Common questions
What is Marc L. Guttman, M.D.'s NPI number?
Marc L. Guttman, M.D.'s National Provider Identifier (NPI) is 1295709186, issued on Feb 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marc L. Guttman, M.D. located?
The NPPES record lists a practice address at 112 Mansfield Ave, Willimantic, CT, 06226. Phone: (860) 456-9116. Providers update this record themselves, so call before visiting.
How can I verify Marc L. Guttman, M.D.'s license?
NPPES lists Connecticut license number 041783, 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 Marc L. Guttman, M.D. prescribe under Medicare Part D?
In 2024, Marc L. Guttman, M.D. had 368 Medicare Part D claims for 224 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Marc L. Guttman, M.D.'s MIPS final score?
The 2023 MIPS final score is 92.2 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.