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

General Surgery

Horst S. Filtzer, MD

Works at hospitals in Fort Mohave, AZ · Bullhead City, AZ · Arizona

Summary

Dr. Horst S. Filtzer, MD is a general surgeon at 1555 Ramar Rd, Bullhead City, AZ 86442. Phone: (833) 546-5633. Accepts Medicare assignment. In 2024, Horst S. Filtzer had 142 Original Medicare patients and 396 services. NPI 1417018862. 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 Horst S. Filtzer, 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 Horst S. Filtzer accept Medicare assignment?
Yes. Medicare's clinician data says Horst S. Filtzer 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 Horst S. Filtzer see?
In 2024, CMS data shows 142 Original Medicare patients and 396 services for Horst S. Filtzer. This counts Original Medicare only and measures volume, not quality.
What is Horst S. Filtzer's NPI number?
1417018862. 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 Horst S. Filtzer, 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 patients142
Services billed to Medicare396
Different services or procedures26
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)90 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)70 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)67 services
  4. Removal of tissue from wound, 20.0 sq cm or less (97597)25 services
  5. Removal of skin and tissue, 20.0 sq cm or less (11042)14 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 cholesterol69%
  • Arthritis44%
  • Diabetes40%
  • Ischemic heart disease33%
  • Chronic kidney disease30%

Hospitals where Horst S. Filtzer works

Medicare's Facility Affiliation Data lists Horst S. Filtzer 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 Horst S. Filtzer is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Horst S. Filtzer as a member of this group (CMS data updated October 2, 2026).

  • Link Medical Inc7 clinicians in the group

Specialties

Find other General Surgery doctors in Arizona →

Other general surgeons in Bullhead City

Clinicians with the same Medicare primary specialty in Bullhead City, AZ — not a recommendation.

All general surgeons in Bullhead City →

Other clinicians in Link Medical Inc

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

Clinician information

CredentialMD
Medical schoolHarvard Medical School
Graduation year1965 (61 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1417018862
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