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

Timothy Cahill, MD

Individual provider Anesthesiology Physician · NPI 1215977400

Timothy Cahill, MD practises Anesthesiology in Ann Arbor, Michigan. Graduated from University of Iowa, Rj & L Carver College of Medicine in 2001, 25 years ago. Practices with Anesthesia Associates of Ann Arbor PLLC, a 217-clinician group. Licensed in Michigan and Ohio.

Years since qualifying
25
Trained at
University of Iowa, Rj & L Carver College of Medicine
Licensed in
MI, OH
In the registry since
2006
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

2006 Hogback Rd Ste 5
Ann Arbor, MI 48105-9750
Phone: (734) 786-4940
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 4301086007 (MI)
Anesthesiology Physician Taxonomy 207L00000X · Licence 35.136955 (OH)

Record details

NPI number1215977400
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 7, 2006
Last updated in NPPESAugust 6, 2019

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated 2001 (25 years in practice)
Group practice Anesthesia Associates Of Ann Arbor Pllc — 217 clinicians
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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 patients246
Services billed 297 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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $33 2 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

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
  • Trinity Health Livingston Hospital Hospital · Howell, MI

Colleagues at Anesthesia Associates of Ann Arbor PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 217 clinicians in the practice; 12 are shown here.

Other providers in Ann Arbor