George S. Postma Jr., MD

Medicare activity in 2024

Official CMS public-use data for George S. Postma Jr., data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)195 services
2. Blood test, comprehensive group of blood chemicals (80053)187 services
3. Blood test, thyroid stimulating hormone (tsh) (84443)175 services
4. Blood test, lipids (cholesterol and triglycerides) (80061)171 services
5. Insertion of needle into vein for collection of blood sample (36415)164 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol75%
• Arthritis41%
• Ischemic heart disease37%
• Diabetes28%
• Chronic kidney disease28%

Hospitals where George S. Postma Jr. works

Medicare's Facility Affiliation Data lists George S. Postma Jr. at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• AdventHealth Shawnee MissionShawnee Mission, KS · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 170104
• University of Kansas HospitalKansas City, KS · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 170040

Practice locations

Addresses where George S. Postma Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

• 2040 Hutton Rd, Suite 102Kansas City, KS 66109 (913) 299‑3700
• 3011 Baltimore AveKansas City, MO 64108 (816) 751‑7832
• 5675 Roe Blvd, Suite 100Roeland Park, KS 66205 (913) 432‑2080

Group practices

Medicare enrollment lists George S. Postma Jr. as a member of these groups (CMS data updated October 2, 2026).

• Ability KC167 clinicians in the group
• Sunflower Medical Group PA38 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Kansas →

Other internal medicine doctors in Kansas City

Clinicians with the same Medicare primary specialty in Kansas City, KS — not a recommendation.

• Aaron N. Byers, DO
• Eric S. Gervey, MD
• Stephanie R. Elberts, DO
• Maliha M. Bhatti, MD
• Frederico A. Duarte Villa-Chan Filho, MD
• Vinaya K. Koduri, MD
• Sabina B. Safder, MD
• Gillian N. Schmidt, MD

All internal medicine doctors in Kansas City →

Other clinicians in Ability KC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Tammy K. Hart, MD
• Byron Perkinson, MD
• Anthony W. Buren, MD
• John L. Sherard, MD
• Susan M. Carney, MD
• Robert D. Nichols, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians