Donald W. Buck Ii, MD

Medicare activity in 2024

Official CMS public-use data for Donald W. Buck Ii, 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. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)25 services
2. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)22 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)22 services
4. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)14 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 pressure73%
• High cholesterol73%
• Arthritis58%
• Anxiety58%
• Depression55%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)42%

Hospitals where Donald W. Buck Ii works

Medicare's Facility Affiliation Data lists Donald W. Buck Ii 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.

• Mercy Hospital SouthSaint Louis, MO · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 260077

Practice locations

Addresses where Donald W. Buck Ii is enrolled with Medicare (CMS data updated October 2, 2026).

• 10004 Kennerly Rd, Suite 365bSaint Louis, MO 63128 (636) 525‑6080
• 701 S New Ballas Rd, Suite 310Saint Louis, MO 63141 (314) 251‑8750

Group practices

Medicare enrollment lists Donald W. Buck Ii as a member of this group (CMS data updated October 2, 2026).

• Mercy Clinic Burn and Plastic Surgery LLC14 clinicians in the group

Specialties

• Plastic and Reconstructive Surgeryprimary
• Hand Surgeryalso

Find other Plastic and Reconstructive Surgery doctors in Missouri →

Other plastic surgeons in Saint Louis

Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.

• John H. Hulsen Iii, MD
• Mitchell A. Pet, MD
• Jonathan Pollack, MD
• Christina M. Plikaitis, MD
• John J. Chi, MD
• Edmond B. Cabbabe, MD
• Keith E. Brandt, MD
• Trina Ebersole

All plastic surgeons in Saint Louis →

Other clinicians in Mercy Clinic Burn and Plastic Surgery LLC

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

• Jonathan Pollack, MD
• Benjamin W. Verdine, MD
• David S. German, MD
• Amy L. Keim, NP
• Michael G. Smock, MD
• Morgan E. Dillon-Van Iwaarden

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