NPPES file of Aug 9, 2026

Michael Louis, DO

Gastroenterology Physician · Harrisonburg, VA

Michael Louis, DO is a gastroenterology physician with a practice address in Harrisonburg, Virginia, and NPI 1851825145, issued on Apr 13, 2017. Check the license (Virginia 0102207921, as entered in NPPES) on the Virginia Department of Health Professions; 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
1851825145
Name
Michael Louis
Credential
DO
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
0102207921 VA
Self-reported in NPPES; status is on the state search
Practice location
1871 Evelyn Byrd Ave, Harrisonburg, VA 22801
Phone
(540) 564-5800
Enumerated
Apr 13, 2017
Record last updated
Apr 21, 2026
Fax
(833) 552-3026
Medicare enrollment
Enrolled (PECOS I20230814000908); accepts Medicare assignment
Medical or professional school
Lake Erie College Of Osteopathic Medicine, Erie, 2017
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 1871 Evelyn Byrd Ave

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

  1. Rodney Arthur, M.D.Nephrology Physician1285699215
  2. Daniel Barry, PAMedical Physician Assistant1588934632
  3. Mary Capstack, PAPhysician Assistant1508258013
  4. Brian Davis, MDGastroenterology Physician1568805091
  5. Glenn Deputy, M.D.Neurology Physician1124084066
  6. Sarah Easter, NP-CFamily Nurse Practitioner1346827573

Verify Michael Louis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersVirginia Department of Health Professions
    Search for license 0102207921
    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 Virginia license search

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67% fewer Medicare Part D claims than the average gastroenterology physician in 2024

270 Medicare Part D claims for 100 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Michael Louis270
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium91 claims
  2. Omeprazole54 claims
  3. Gavilyte-G25 claims
  4. Famotidine15 claims
  5. Peg-3350 And Electrolytes13 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: $363.67

4 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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.

  1. Michael Louis$363.67
  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 one group practice

  1. Rmh Medical Group LLCHarrisonburg, VA

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

Michael Louis among 536 gastroenterology physician records in Virginia

Michael Louis, DO is one of 536 gastroenterology physician records with a practice address in Virginia. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 88% of them.

  • NPI issued2017 · 88% of these records are older, 10% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2017 · median 2001 among the 389 with a school on file
  • Record last updated2026 · 54% 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 Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Virginia

There are 536 gastroenterology physician records in Virginia.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Brian Davis, MDHarrisonburg, VA 228011568805091
  2. Esteban Figueroa, MDHarrisonburg, VA 228011114345246
  3. Timothy Landes, M.D.Harrisonburg, VA 228011134184088
  4. Harold Reilly, M.D.Harrisonburg, VA 228011619935749
  5. Robert Sease, M.D.Harrisonburg, VA 228011215994421
  6. Yoo Suh, M.D.Harrisonburg, VA 228011194713131
  7. Timothy Vest, M.D.Harrisonburg, VA 228011629035407
  8. Anne Bush, M.DCulpeper, VA 227011770511792

Common questions

What is Michael Louis, DO's NPI number?

Michael Louis, DO's National Provider Identifier (NPI) is 1851825145, issued on Apr 13, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Michael Louis, DO located?

The NPPES record lists a practice address at 1871 Evelyn Byrd Ave, Harrisonburg, VA, 22801. Phone: (540) 564-5800. Providers update this record themselves, so call before visiting.

How can I verify Michael Louis, DO's license?

NPPES lists Virginia license number 0102207921, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Michael Louis, DO prescribe under Medicare Part D?

In 2024, Michael Louis, DO had 270 Medicare Part D claims for 100 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.