Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Marcus Muehlbauer, MD

Individual provider Gastroenterology Physician · NPI 1093970121

Marcus Muehlbauer, MD practises Gastroenterology in Gainesville, Florida. Qualified in 2001, 25 years ago. Practices with Digestive Disease Associates, a 27-clinician group and accepts Medicare assignment. Licensed in Florida and North Carolina.

Years since qualifying
25
Licensed in
FL, NC
In the registry since
2008
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1329 SW 16th St Ste 5251 University OF Florida
Gainesville, FL 32608
Phone: (919) 265-4874
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence ME121643 (FL)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 2014-01057 (NC)

Record details

NPI number1093970121
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 29, 2008
Last updated in NPPESFebruary 5, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Digestive Disease Associates — 27 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 133 times · 86th percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 122 times · 81st percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients482
Services billed 11,108 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Uf Health Shands Hospital Hospital · Gainesville, FL · listed as Shands Hospital
  • Hca Florida Lake City Hospital Hospital · Lake City, FL
  • Hca Florida North Florida Hospital Hospital · Gainesville, FL

Colleagues at Digestive Disease Associates

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 27 clinicians in the practice; 12 are shown here.

Other providers in Gainesville