NPPES file of Aug 9, 2026

Peter George Mavrelis, MD

Gastroenterology Physician · Hobart, IN

Peter George Mavrelis, MD is a gastroenterology physician with a practice address in Hobart, Indiana, and NPI 1326043597, issued on Jun 15, 2005. Check the license (Indiana 01030831A, as entered in NPPES) on the Medical Licensing Board of Indiana; 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
1326043597
Name
Peter George Mavrelis
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
01030831A IN
Self-reported in NPPES; status is on the state search
Practice location
7895 Grand Blvd, Hobart, IN 46342
Phone
(219) 947-1910
Enumerated
Jun 15, 2005
Record last updated
Dec 9, 2022
Fax
(219) 758-5009
Medicaid ID
100138640A IN
Medicare enrollment
Enrolled (PECOS I20070323000030); accepts Medicare assignment
Medical or professional school
University Of Chicago, Pritzker School Of Medicine, 1972
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 7895 Grand Blvd

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

  1. Brendan Frawley, MDSurgery Physician1225172083
  2. Tom Galouzis, MDSurgery Physician1013050772
  3. Joseph Hess, MSPASSurgical Physician Assistant1710603642
  4. Jocelyn Logan, MDSurgery Physician1801962253
  5. Christie Mellis, RN, MSN, NP-CFamily Nurse Practitioner1407228083
  6. Jonathan Patterson, DOSurgery Physician1588834881

Verify Peter George Mavrelis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Licensing Board of Indiana
    Search for license 01030831A
    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 Indiana 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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96% fewer Medicare Part D claims than the average gastroenterology physician in 2024

29 Medicare Part D claims, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.

  1. Peter Mavrelis29
  2. Specialty average811

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. The Methodist Hospitals IncMerrillville, IN

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

Peter George Mavrelis among 372 gastroenterology physician records in Indiana

Peter George Mavrelis, MD is one of 372 gastroenterology physician records with a practice address in Indiana. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 83% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated1972 · median 2001 among the 272 with a school on file
  • Record last updated2022 · 42% 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 Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Indiana

There are 372 gastroenterology physician records in Indiana.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Alexander Igolnikov, MDLa Porte, IN 463501437249182
  2. Mark Nelson, MDLa Porte, IN 463501891737763
  3. Mohammad ArfeenMichigan City, IN 463601932640075
  4. Kevin BurkeMichigan City, IN 463601477930204
  5. David FumoMichigan City, IN 463601164463725
  6. Rakesh Gupta, MDMichigan City, IN 463601285704494
  7. Eugene Lyubashevsky, M.D.Michigan City, IN 463601952372039
  8. Harshavardhan Dalal, M.D.Highland, IN 463221700812823

Common questions

What is Peter George Mavrelis, MD's NPI number?

Peter George Mavrelis, MD's National Provider Identifier (NPI) is 1326043597, issued on Jun 15, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Peter George Mavrelis, MD located?

The NPPES record lists a practice address at 7895 Grand Blvd, Hobart, IN, 46342. Phone: (219) 947-1910. Providers update this record themselves, so call before visiting.

How can I verify Peter George Mavrelis, MD's license?

NPPES lists Indiana license number 01030831A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Peter George Mavrelis, MD prescribe under Medicare Part D?

In 2024, Peter George Mavrelis, MD had 29 Medicare Part D claims; 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.