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

Michael Zimmerman Root, MD

Individual provider Critical Care Medicine (Anesthesiology) Physician · NPI 1609370071

Michael Zimmerman Root, MD is registered under Pulmonary Disease in Saint Louis, Missouri. Graduated from New York University School of Medicine in 2018, 8 years ago. Practices with University Physicians Incorporated, a 3,148-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Colorado and Missouri.

Years since qualifying
8
Trained at
New York University School of Medicine
Licensed in
CO, MO
In the registry since
2018
Specialties on file
7
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

1 Barnes Jewish Hospital Plz
Saint Louis, MO 63110-1003
Phone: (314) 454-8917
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 12605 E 16th Ave, Aurora, CO 80045-2545 — (720) 848-0000

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 2026016042 (MO)
Critical Care Medicine (Anesthesiology) Physician Taxonomy 207LC0200X · Licence 2026016042 (MO)
Internal Medicine Physician Taxonomy 207R00000X · Licence 2026016042 (MO)
Internal Medicine Physician Taxonomy 207R00000X · Licence DR.0066690 (CO)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence DR.0066690 (CO)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 2026016042 (MO)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence DR.0066690 (CO)

Record details

NPI number1609370071
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 21, 2018
Last updated in NPPESSeptember 22, 2026
Certification dateSeptember 22, 2026

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS), INTERNAL MEDICINE
Medical schoolNEW YORK UNIVERSITY SCHOOL OF MEDICINE
Graduated 2018 (8 years in practice)
Group practice University Physicians Incorporated — 3148 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients111
Services billed 214 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Colleagues at University Physicians Incorporated

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3148 clinicians in the practice; 12 are shown here.

Other providers in Saint Louis