Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Chelsey A. Petz, MD

Works at hospitals in Omaha, NE · Papillion, NE · Charleston, SC · Nebraska, South Carolina

Summary

Dr. Chelsey A. Petz, MD is an internal medicine doctor at 5002 Underwood Ave, Omaha, NE 68132. Phone: (402) 398-6255. Accepts Medicare assignment. In 2024, Chelsey A. Petz had 191 Original Medicare patients and 551 services. NPI 1700014677. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Chelsey A. Petz, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Chelsey A. Petz accept Medicare assignment?
Yes. Medicare's clinician data says Chelsey A. Petz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Chelsey A. Petz see?
In 2024, CMS data shows 191 Original Medicare patients and 551 services for Chelsey A. Petz. This counts Original Medicare only and measures volume, not quality.
What is Chelsey A. Petz's NPI number?
1700014677. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Chelsey A. Petz, 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.

Original Medicare patients191
Services billed to Medicare551
Different services or procedures18
Participating Medicare providerYes
Average age of these patients71

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)199 services
  2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)194 services
  3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)40 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)32 services
  5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)16 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 cholesterol73%
  • High blood pressure67%
  • Arthritis50%
  • Diabetes30%
  • Osteoporosis26%
  • Anxiety22%

Hospitals where Chelsey A. Petz works

Medicare's Facility Affiliation Data lists Chelsey A. Petz 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.

  • CHI Health Bergan MercyOmaha, NE · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 280060
  • CHI Health ImmanuelOmaha, NE · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 280081
  • CHI Health LakesideOmaha, NE · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 280130
  • CHI Health MidlandsPapillion, NE · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 280105
  • MUSC Medical CenterCharleston, SC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 420004

Practice locations

Addresses where Chelsey A. Petz is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Chelsey A. Petz as a member of this group (CMS data updated October 2, 2026).

  • Alegent Creighton Clinic963 clinicians in the group

Specialties

Find other Internal Medicine doctors in Nebraska →

Other internal medicine doctors in Omaha

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

All internal medicine doctors in Omaha →

Other clinicians in Alegent Creighton Clinic

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

Clinician information

CredentialMD
Medical schoolCreighton University School Of Medicine
Graduation year2009 (17 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1700014677
CorrectionsReport an error or suggest an update →

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