Tammy O. Wichman, MD

Medicare activity in 2024

Official CMS public-use data for Tammy O. Wichman, 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 50 minutes (99233)185 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)164 services
3. Critical care, first 30-74 minutes (99291)89 services
4. Test to examine how well the lungs exchange gases (94729)78 services
5. Test to measure rate of airflow (94375)77 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 cholesterol70%
• Arthritis52%
• Heart failure47%
• Ischemic heart disease46%
• Chronic kidney disease46%

Hospitals where Tammy O. Wichman works

Medicare's Facility Affiliation Data lists Tammy O. Wichman 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.

• Bellevue Medical CenterBellevue, NE · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 280132
• Bryan Medical CenterLincoln, NE · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 280003
• The Nebraska Medical CenterOmaha, NE · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 280013

Practice locations

Addresses where Tammy O. Wichman is enrolled with Medicare (CMS data updated October 2, 2026).

• Emile 42nd StOmaha, NE 68198 (402) 559‑4015

Group practices

Medicare enrollment lists Tammy O. Wichman as a member of this group (CMS data updated October 2, 2026).

• UNMC Physicians1,518 clinicians in the group

Specialties

• Critical Care (Intensivists)primary
• Pulmonary Diseasealso

Find other Critical Care (Intensivists) doctors in Nebraska →

Other critical care doctors in Omaha

Clinicians with the same Medicare primary specialty in Omaha, NE — not a recommendation.

• Robert W. Plambeck, MD
• Elizabeth L. Wittrock, DO
• Derek A. Kruse, MD
• Derek C. Vogel, MD
• Jason E. Lambrecht, MD

All critical care doctors in Omaha →

Other clinicians in UNMC Physicians

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

• Ryan K. Lee, MD
• Collin A. Gilmore, MD
• Vinh Nguyen, CNA
• Christine A. Tran, NP
• Trevor L. Lorenz
• Lindsay J. Gage, 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