Alexandra G. Hahn Waldenmaier, MD

Medicare activity in 2024

Official CMS public-use data for Alexandra G. Hahn Waldenmaier, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)166 services
2. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)74 services
3. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)65 services
4. Hospital discharge day management, more than 30 minutes (99239)47 services
5. Critical care, first 30-74 minutes (99291)34 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%
• Arthritis66%
• Ischemic heart disease45%
• Depression43%
• Anxiety40%

Hospitals where Alexandra G. Hahn Waldenmaier works

Medicare's Facility Affiliation Data lists Alexandra G. Hahn Waldenmaier 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.

• Texas Health Presbyterian Hospital DallasDallas, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450462
• Texas Health Presbyterian Hospital KaufmanKaufman, TX · Acute Care Hospital · Emergency services: listed by Medicare · CCN 450292
• Texas Health Presbyterian Hospital RockwallRockwall, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 670044

Practice locations

Addresses where Alexandra G. Hahn Waldenmaier is enrolled with Medicare (CMS data updated October 2, 2026).

• 8230 Walnut Hill Ln, Suite 320Dallas, TX 75231 (214) 369‑5432

Group practices

Medicare enrollment lists Alexandra G. Hahn Waldenmaier as a member of this group (CMS data updated October 2, 2026).

• Texas Health Physicians Group1,365 clinicians in the group

Specialties

• General Surgeryprimary

Find other General Surgery doctors in Texas →

Other general surgeons in Dallas

Clinicians with the same Medicare primary specialty in Dallas, TX — not a recommendation.

• Tiffany L. Anthony, MD
• Carrie C. Moore, MD
• Da-Shu Jiang, MD
• Vichin C. Puri, MD
• Linda A. Dultz, MD
• Jason B. Fleming, MD
• James S. Kohn, MD
• Jacob D. Weston, DO

All general surgeons in Dallas →

Other clinicians in Texas Health Physicians Group

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

• Joseph M. Ortenberg, MD
• Samuel A. Nussbaumer, MD
• Di L. Parks, MD
• Lalita Gupta, MD
• Matthew P. Perryman, MD
• Autumn R. Hall, NP

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