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

Dr. Timothy Michael McGorisk, MD

Individual provider Gastroenterology Physician · NPI 1356637177

Dr. Timothy Michael McGorisk, MD practises Gastroenterology in Ypsilanti, Michigan. Graduated from Wayne State University School of Medicine in 2011, 15 years ago. Practices with St Mary Mercy Hospital Professional, a 17-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Michigan.

Years since qualifying
15
Trained at
Wayne State University School of Medicine
Licensed in
MI
In the registry since
2011
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

5300 Elliott Dr
Ypsilanti, MI 48197-8632
Phone: (734) 434-6262
Fax: (734) 714-2820
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 4301503699 (MI)

Record details

NPI number1356637177
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 20, 2011
Last updated in NPPESJanuary 13, 2026
Certification dateJanuary 13, 2026

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolWAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2011 (15 years in practice)
Group practice St Mary Mercy Hospital Professional — 17 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
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 96 times · 79th percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 81 times · 72nd 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 patients340
Services billed 5,414 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.

  • Chelsea Hospital Hospital · Chelsea, MI · listed as Chelsea Community Hospital
  • Trinity Health Ann Arbor Hospital Hospital · Ann Arbor, MI · listed as Trinity Health Michigan Ann Arbor
  • St Joe Mercy Hospital System Livonia Hospital · Livonia, MI
  • Trinity Health Livingston Hospital Hospital · Howell, MI

Colleagues at St Mary Mercy Hospital Professional

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 17 clinicians in the practice; 12 are shown here.

Other providers in Ypsilanti