NPPES file of Aug 9, 2026

Marcus Muehlbauer, M.D.

Gastroenterology Physician · Gainesville, FL

Marcus Muehlbauer, M.D. is a gastroenterology physician with a practice address in Gainesville, Florida, and NPI 1093970121, issued on Jul 29, 2008. Check the license (Florida ME121643, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1093970121
Name
Marcus Muehlbauer
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License numbers
ME121643 FL
2014-01057 NC
Self-reported in NPPES; status is on the state search
Practice location
1329 SW 16TH St Suite 5251, Gainesville, FL 32608
Phone
(919) 265-4874
Enumerated
Jul 29, 2008
Record last updated
Feb 5, 2025
Medicaid ID
013955800 FL
Medicare enrollment
Enrolled (PECOS I20150112001518); accepts Medicare assignment
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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Verify Marcus Muehlbauer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license ME121643
    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 Florida license search

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18% more Medicare Part D claims than the average gastroenterology physician in 2024

955 Medicare Part D claims for 226 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.

  1. Marcus Muehlbauer955
  2. Specialty average811

Most prescribed

  1. Omeprazole169 claims
  2. Humira(Cf) Pen55 claims
  3. Cholestyramine50 claims
  4. Pantoprazole Sodium47 claims
  5. Azathioprine44 claims
  6. Mesalamine44 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $38.72

2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, 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. Marcus Muehlbauer$38.72
  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. Digestive Disease AssociatesGainesville, FL

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

Marcus Muehlbauer among 1,513 gastroenterology physician records in Florida

Marcus Muehlbauer, M.D. is one of 1,513 gastroenterology physician records with a practice address in Florida. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 63% of them.

  • NPI issued2008 · 63% of these records are older, 32% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2001 · median 2000 among the 1,156 with a school on file
  • Record last updated2025 · 52% 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 Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Florida

There are 1,513 gastroenterology physician records in Florida.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Lakshmi Gopal, MDGainesville, FL 326081871634816
  2. Jianyi Calvin Koh, MBBSGainesville, FL 326081538682737
  3. Sheetal Patel, MDGainesville, FL 326081003263484
  4. Caitlin Sullivan, D.O.Gainesville, FL 326081861758690
  5. Manuel Amaris, M.DGainesville, FL 326101578599080
  6. Tara Dyson, MDGainesville, FL 326101194797605
  7. David Estores, MDGainesville, FL 326101043266273
  8. Roberto Firpi-Morell, MDGainesville, FL 326101689633380

Common questions

What is Marcus Muehlbauer, M.D.'s NPI number?

Marcus Muehlbauer, M.D.'s National Provider Identifier (NPI) is 1093970121, issued on Jul 29, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Marcus Muehlbauer, M.D. located?

The NPPES record lists a practice address at 1329 SW 16TH St Suite 5251, Gainesville, FL, 32608. Phone: (919) 265-4874. Providers update this record themselves, so call before visiting.

How can I verify Marcus Muehlbauer, M.D.'s license?

NPPES lists Florida license number ME121643, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Marcus Muehlbauer, M.D. prescribe under Medicare Part D?

In 2024, Marcus Muehlbauer, M.D. had 955 Medicare Part D claims for 226 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Marcus Muehlbauer, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.