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Internal Medicine

Julie L. Rothlisberger Castillo, MD

Works at hospitals in Omaha, NE · Council Bluffs, IA · Papillion, NE · Nebraska, Iowa

Summary

Dr. Julie L. Rothlisberger Castillo, MD is an internal medicine doctor at 4220 L St, Suite 100, Omaha, NE 68107. Phone: (402) 733-4433. Accepts Medicare assignment. In 2024, Julie L. Rothlisberger Castillo had 117 Original Medicare patients and 2,303 services. NPI 1376693374. 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.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 4220 L St, Suite 100, Omaha, NE 68107 · Directions (1 more location)
  • Phone: (402) 733‑4433
  • Medicare: Accepts Medicare assignment
  • Hospitals: CHI Health Bergan Mercy, CHI Health Immanuel, CHI Health Lakeside and 2 more
  • Group practice: Alegent Creighton Clinic
  • Medical school: University Of Nebraska College Of Medicine · graduated 2000 (26 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Julie L. Rothlisberger Castillo, 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 Julie L. Rothlisberger Castillo accept Medicare assignment?
Yes. Medicare's clinician data says Julie L. Rothlisberger Castillo 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 Julie L. Rothlisberger Castillo see?
In 2024, CMS data shows 117 Original Medicare patients and 2,303 services for Julie L. Rothlisberger Castillo. This counts Original Medicare only and measures volume, not quality.
What is Julie L. Rothlisberger Castillo's NPI number?
1376693374. 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 Julie L. Rothlisberger Castillo, 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 patients117
Services billed to Medicare2,303
Different services or procedures39
Participating Medicare providerYes
Average age of these patients69

Most frequent services

  1. Injection, denosumab, 1 mg (J0897)1,440 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)258 services
  3. Insertion of needle into vein for collection of blood sample (36415)199 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)81 services
  5. 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)42 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 pressure72%
  • High cholesterol69%
  • Arthritis33%
  • Diabetes32%
  • Anxiety31%
  • Depression26%

Hospitals where Julie L. Rothlisberger Castillo works

Medicare's Facility Affiliation Data lists Julie L. Rothlisberger Castillo 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 Mercy Council BluffsCouncil Bluffs, IA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 160028
  • CHI Health MidlandsPapillion, NE · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 280105

Practice locations

Addresses where Julie L. Rothlisberger Castillo is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Julie L. Rothlisberger Castillo 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 schoolUniversity Of Nebraska College Of Medicine
Graduation year2000 (26 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1376693374
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