NPPES file of Aug 9, 2026

Gary Michael Reiss, MD

Gastroenterology Physician · Marrero, LA

Gary Michael Reiss, MD is a gastroenterology physician with a practice address in Marrero, Louisiana, and NPI 1568666543, issued on Jun 13, 2007. Check the license (Louisiana MD.200117, as entered in NPPES) on the Louisiana State Board of Medical Examiners; 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
1568666543
Name
Gary Michael Reiss
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
MD.200117 LA
Self-reported in NPPES; status is on the state search
Practice location
1111 Medical Center Blvd, Marrero, LA 70072
Phone
(504) 349-6401
Enumerated
Jun 13, 2007
Record last updated
Aug 12, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(504) 349-6444
Medicaid ID
1215040 LA
Medicare enrollment
Enrolled (PECOS I20071011000497); accepts Medicare assignment
Medical or professional school
Louisiana State University School Of Medicine In New Orleans, 2002
Telehealth
Offers telehealth (CMS)
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 1111 Medical Center Blvd

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

  1. John Balart, M.D.Diagnostic Radiology Physician1518130756
  2. Charles Ballay, M.D.Otolaryngology Physician1043306392
  3. Robert Batson, M.D.Vascular Surgery Physician1790780823
  4. Harris Blackman, M.D.Specialist1629041116
  5. Jonathan Boraski, M.D.Plastic Surgery Physician1245231612
  6. William Borron, MDPulmonary Disease Physician1790786861

Verify Gary Michael Reiss in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
    Search for license MD.200117
    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 Louisiana 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 gastroenterology physician in 2024

2,589 Medicare Part D claims for 775 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 14 claims were for opioids.

  1. Gary Reiss2,589
  2. Specialty average811

Most prescribed

  1. Omeprazole404 claims
  2. Pantoprazole Sodium352 claims
  3. Dicyclomine Hcl284 claims
  4. Clenpiq204 claims
  5. Ondansetron Odt126 claims
  6. Linzess113 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: $2,560.11

134 payments; by number, the most common kind was food and beverage; the largest payer was Laborie Medical Technologies Corp. 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.

  1. Gary Reiss$2,560.11
  2. Specialty average$5,015.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Crescent City Physicians IncNew Orleans, LA
  2. New Orleans Physician Services IncMarrero, LA
  3. Texas Digestive Disease Consultants, PLLCMetairie, LA

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

Gary Michael Reiss among 263 gastroenterology physician records in Louisiana

Gary Michael Reiss, MD is one of 263 gastroenterology physician records with a practice address in Louisiana. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 54% of them.

  • NPI issued2007 · 54% of these records are older, 35% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2002 · median 2004 among the 207 with a school on file
  • Record last updated2014 · 61% 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 Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

11 gastroenterology physician records list a practice address in Marrero

They are 11 of the 1,117 NPPES records with a practice address in Marrero, and 263 gastroenterology physician records in Louisiana.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. James Campbell, MDMarrero, LA 700721053331421
  2. Brett Hymel, MDMarrero, LA 700721134396773
  3. Shantiprakash Kedia, M.D.Marrero, LA 700721295738557
  4. Eric Lorio, MDMarrero, LA 700721730670431
  5. Cherie Niles, M.D.Marrero, LA 700721669555025
  6. Scott Pollack, M.D.Marrero, LA 700721366633166
  7. Sanjeeva Reddy, M.D.Marrero, LA 700721669474904
  8. Charles Schibler, M.D.Marrero, LA 700721669474920

Common questions

What is Gary Michael Reiss, MD's NPI number?

Gary Michael Reiss, MD's National Provider Identifier (NPI) is 1568666543, issued on Jun 13, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Gary Michael Reiss, MD located?

The NPPES record lists a practice address at 1111 Medical Center Blvd, Marrero, LA, 70072. Phone: (504) 349-6401. Providers update this record themselves, so call before visiting.

How can I verify Gary Michael Reiss, MD's license?

NPPES lists Louisiana license number MD.200117, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gary Michael Reiss, MD prescribe under Medicare Part D?

In 2024, Gary Michael Reiss, MD had 2,589 Medicare Part D claims for 775 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.