Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mark Thomas Ritter, APRN, CRNA

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1306430392

Mark Thomas Ritter, APRN, CRNA is a Certified Registered Nurse Anesthetist (CRNA) in Chicago, Illinois. Qualified in 2021, 5 years ago. Practices with University of Chicago, a 1,681-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
5
Licensed in
IL
In the registry since
2021
Specialties on file
2
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

251 E Huron St Ste 5-704
Chicago, IL 60611-2908
Phone: (312) 926-8369
Fax: (312) 926-8341
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5841 S Maryland Ave, Chicago, IL 60637-1443 — (888) 824-0200

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 209025181 (IL)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1306430392
Entity typeIndividual (Type 1)
GenderMale
Credentials APRN , CRNA
Sole proprietorNo
NPI enumeratedFebruary 22, 2021
Last updated in NPPESFebruary 12, 2025
Certification dateFebruary 12, 2025

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice University Of Chicago — 1681 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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