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

Dr. Walter Lee Mickey, DO

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1306109384

Dr. Walter Lee Mickey, DO practises Internal Medicine in Saint Louis, Missouri. Qualified in 2012, 14 years ago. Practices with Mercy ACO Clinical Services Inc, a 138-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Missouri.

Years since qualifying
14
Licensed in
MO
In the registry since
2012
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

621 S Ballas Rd Ste 7020
Saint Louis, MO 63122-5314
Phone: (314) 251-6000
Show map & directions

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

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 2014011937 (MO)

Record details

NPI number1306109384
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 24, 2012
Last updated in NPPESMarch 23, 2021
Certification dateMarch 23, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Mercy Aco Clinical Services Inc — 138 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
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 patients82
Services billed 268 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

  • Mercy Hospital St Louis Hospital · Saint Louis, MO · listed as Mercy Hospitals East Communities Mercy Hospital St Louis

Colleagues at Mercy ACO Clinical Services Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 138 clinicians in the practice; 12 are shown here.

Other providers in Saint Louis