Adam Christopher Winters, MD
Gastroenterology Physician · Portland, ME
Adam Christopher Winters, MD is a gastroenterology physician with a practice address in Portland, Maine, and NPI 1700270352, issued on Mar 22, 2015. Check the license (Maine MD29191, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Adam Christopher Winters
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- MD29191 ME
286887 NY
Self-reported in NPPES; status is on the state search - Practice location
- 48 Gilman St, Portland, ME 04102
- Phone
- (207) 661-4400
- Enumerated
- Mar 22, 2015
- Record last updated
- Jan 5, 2026
- Fax
- (207) 810-2363
- Medicare enrollment
- Enrolled (PECOS I20250508001499); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 86 in Maine → Look up another NPI →
Also registered at 48 Gilman St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lydia Abair, AGPCNPGerontology Nurse Practitioner1740653492
- Karen Beal, MS, RDRegistered Dietitian1891545455
- Kristen Bergeron, LCSWClinical Social Worker1073820767
- Kathryn Hassett, LCSWClinical Social Worker1760038400
- Maura McDonald, FNPFamily Nurse Practitioner1710167556
- Sandra Putnam, APMHNPPsychiatric/Mental Health Nurse Practitioner1417015462
Verify Adam Christopher Winters in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license MD29191Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average gastroenterology physician in 2024
748 Medicare Part D claims for 103 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Tacrolimus136 claims
- Ursodiol66 claims
- Pantoprazole Sodium52 claims
- Mycophenolate Mofetil40 claims
- Cyclosporine Modified37 claims
- Entecavir27 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.
Industry payments in 2024: $122.43
1 payment: food and beverage; the largest payer was Mallinckrodt Hospital Products 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 2 group practices
- Icahn School OF Medicine AT Mount SinaiNew York, NY
- MainehealthBiddeford, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Adam Christopher Winters among 86 gastroenterology physician records in Maine
Adam Christopher Winters, MD is one of 86 gastroenterology physician records with a practice address in Maine. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 84% of them.
- NPI issued2015 · 84% of these records are older, 13% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2015 · median 2003 among the 61 with a school on file
- Record last updated2026 · 41% 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 Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Maine
There are 86 gastroenterology physician records in Maine.
All 86 in Maine → Every provider in Portland → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Newell Augur, MDPortland, ME 041021356569529
- Luke Chmielecki, MDPortland, ME 041021548897929
- Andrew Hsu, M.D.Portland, ME 041021003270471
- Martin Moehlen, M.D.Portland, ME 041021104006279
- Michael Roy, M.D.Portland, ME 041021134227994
- Shadab Saboori, MD, MPHPortland, ME 041021558865790
- Curtis Winchenbach, MDPortland, ME 041021417043712
- Sara ZelmanPortland, ME 041021487217295
Common questions
What is Adam Christopher Winters, MD's NPI number?
Adam Christopher Winters, MD's National Provider Identifier (NPI) is 1700270352, issued on Mar 22, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Adam Christopher Winters, MD located?
The NPPES record lists a practice address at 48 Gilman St, Portland, ME, 04102. Phone: (207) 661-4400. Providers update this record themselves, so call before visiting.
How can I verify Adam Christopher Winters, MD's license?
NPPES lists Maine license number MD29191, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Adam Christopher Winters, MD prescribe under Medicare Part D?
In 2024, Adam Christopher Winters, MD had 748 Medicare Part D claims for 103 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.