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Emergency Medicine

Franz K. Bolowich, DO

Works at hospitals in Apple Valley, CA · California

Summary

Dr. Franz K. Bolowich, DO is an emergency medicine doctor at 18300 US Hwy 18, Apple Valley, CA 92307. Phone: (760) 242-2311. Accepts Medicare assignment. In 2024, Franz K. Bolowich had 316 Original Medicare patients and 590 services. NPI 1982648846. 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: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 18300 US Hwy 18, Apple Valley, CA 92307 · Directions
  • Phone: (760) 242‑2311
  • Medicare: Accepts Medicare assignment
  • Hospital: Providence St Mary Medical Center
  • Group practice: Cep America - California
  • Medical school: graduated 1998 (28 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Franz K. Bolowich, 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 Franz K. Bolowich accept Medicare assignment?
Yes. Medicare's clinician data says Franz K. Bolowich 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 Franz K. Bolowich see?
In 2024, CMS data shows 316 Original Medicare patients and 590 services for Franz K. Bolowich. This counts Original Medicare only and measures volume, not quality.
What is Franz K. Bolowich's NPI number?
1982648846. 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 Franz K. Bolowich, 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 patients316
Services billed to Medicare590
Different services or procedures29
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)211 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)204 services
  3. Critical care, first 30-74 minutes (99291)85 services
  4. Emergency department visit with moderate level of medical decision making (99284)32 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%
  • Diabetes53%
  • Arthritis53%
  • Heart failure48%
  • Chronic kidney disease45%

Hospitals where Franz K. Bolowich works

Medicare's Facility Affiliation Data lists Franz K. Bolowich 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.

Practice locations

Addresses where Franz K. Bolowich is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Franz K. Bolowich as a member of this group (CMS data updated October 2, 2026).

  • Cep America - California1,292 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Apple Valley

Clinicians with the same Medicare primary specialty in Apple Valley, CA — not a recommendation.

All emergency medicine doctors in Apple Valley →

Other clinicians in Cep America - California

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

Clinician information

CredentialDO
Graduation year1998 (28 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1982648846
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