NPPES file of Aug 9, 2026

Reza Rahbar-Semnani, MD

Colon & Rectal Surgery Physician · Rockport, ME

Reza Rahbar-Semnani, MD is a colon & rectal surgery physician with a practice address in Rockport, Maine, and NPI 1952540247, issued on Feb 11, 2009. Check the license (Maine MD21421, as entered in NPPES) on the Maine Board of Licensure in Medicine; 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
1952540247
Name
Reza Rahbar-Semnani
Credential
MD
Primary taxonomy
Colon & Rectal Surgery Physician 208C00000X
License numbers
MD21421 ME
2010-00980 NC
Self-reported in NPPES; status is on the state search
Practice location
4 Glen Cove Dr Ste 10, Rockport, ME 04856
Phone
(207) 301-5790
Enumerated
Feb 11, 2009
Record last updated
Apr 7, 2026
Fax
(207) 301-5310
Medicare enrollment
Enrolled (PECOS I20170119000618); accepts Medicare assignment
Medical or professional school
University Of North Carolina At Chapel Hill School Of Medicine, 2004
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 4 Glen Cove Dr Ste 10

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

  1. Kirk Bernadino, MDGastroenterology Physician1871523290
  2. Eric Elton, MDGastroenterology Physician1073543906
  3. Michelle Kinney, RN, FNPFamily Nurse Practitioner1447558812
  4. Steven Rogers, MDGastroenterology Physician1548231087
  5. Jon Stauffer, M.D.Gastroenterology Physician1194720177

Verify Reza Rahbar-Semnani in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
    Search for license MD21421
    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 Maine 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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3.2 times the Medicare Part D claims of the average colon & rectal surgery physician in 2024

608 Medicare Part D claims for 193 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 55 claims were for opioids.

  1. Reza Rahbar-Semnani608
  2. Specialty average192

Most prescribed

  1. Metronidazole97 claims
  2. Neomycin Sulfate78 claims
  3. Ondansetron Hcl73 claims
  4. Sod Sulf-Potass Sulf-Mag Sulf55 claims
  5. Oxycodone Hcl33 claims
  6. Clenpiq27 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: $47.83

3 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 1,524 providers of this specialty with any payment received $3,468.16 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Reza Rahbar-Semnani$47.83
  2. Specialty average$3,468.16

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

  1. MainehealthPortland, ME
  2. Raleigh Durham Medical Group PACary, NC

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

Colon & Rectal Surgery Physician providers in Maine

There are 9 colon & rectal surgery physician records in Maine.

The 8 colon & rectal surgery physician records with the nearest ZIP codes

  1. Jerald Hurdle, D.O.Waterville, ME 049011184648784
  2. Brian Gillis, DOOakland, ME 049631386711877
  3. Marie Audett, MDPortland, ME 041021891920823
  4. Kathreen Lee, MDPortland, ME 041021639304132
  5. Joseph Mack, M.D.Portland, ME 041021114380615
  6. Cathel Macleod, MDPortland, ME 041021851479034
  7. Melville RobertsPortland, ME 041021235217456
  8. Richard Stockwell, DOWestbrook, ME 040921275570541

Common questions

What is Reza Rahbar-Semnani, MD's NPI number?

Reza Rahbar-Semnani, MD's National Provider Identifier (NPI) is 1952540247, issued on Feb 11, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Reza Rahbar-Semnani, MD located?

The NPPES record lists a practice address at 4 Glen Cove Dr Ste 10, Rockport, ME, 04856. Phone: (207) 301-5790. Providers update this record themselves, so call before visiting.

How can I verify Reza Rahbar-Semnani, MD's license?

NPPES lists Maine license number MD21421, 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 Reza Rahbar-Semnani, MD prescribe under Medicare Part D?

In 2024, Reza Rahbar-Semnani, MD had 608 Medicare Part D claims for 193 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. 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.