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

Dr. William Micka, MD

Individual provider Internal Medicine Physician · NPI 1376689729

Dr. William Micka, MD practises Allergy/Immunology in Springfield, Missouri. Graduated from Saint Louis University School of Medicine in 2003, 23 years ago. Practices with Lester E Cox Medical Centers, a 249-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Missouri.

Years since qualifying
23
Trained at
Saint Louis University School of Medicine
Licensed in
MO
In the registry since
2007
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

1001 E Primrose St
Springfield, MO 65807-5155
Phone: (417) 875-3000
Fax: (417) 875-3383
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Allergy & Immunology Physician (primary) Taxonomy 207K00000X · Licence 2006006314 (MO)
Internal Medicine Physician Taxonomy 207R00000X · Licence 2006006314 (MO)

Record details

NPI number1376689729
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 30, 2007
Last updated in NPPESDecember 27, 2018

Medicare enrollment

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

Medicare specialtyALLERGY/IMMUNOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolSAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice Lester E Cox Medical Centers — 249 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 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 patients224
Services billed 3,492 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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 $2,684 113 payments · a meal or drink at a meeting or visit, not a fee
Consulting Fee $42 2 payments

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.

Colleagues at Lester E Cox Medical Centers

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 249 clinicians in the practice; 12 are shown here.

Other providers in Springfield