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Orthopedic Surgery

Hossein M. Aziz, DO

Works at hospitals in Ventura, CA · Oxnard, CA · California

Summary

Dr. Hossein M. Aziz, DO is an orthopedic surgeon at 3525 Loma Vista Rd, Suite A, Ventura, CA 93003. Phone: (805) 641-6415. Accepts Medicare assignment. In 2024, Hossein M. Aziz had 141 Original Medicare patients and 544 services. NPI 1790167054. 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 Hossein M. Aziz, 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 Hossein M. Aziz accept Medicare assignment?
Yes. Medicare's clinician data says Hossein M. Aziz 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 Hossein M. Aziz see?
In 2024, CMS data shows 141 Original Medicare patients and 544 services for Hossein M. Aziz. This counts Original Medicare only and measures volume, not quality.
What is Hossein M. Aziz's NPI number?
1790167054. 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 Hossein M. Aziz, 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 patients141
Services billed to Medicare544
Different services or procedures56
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)106 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)94 services
  3. X-ray of lower and sacral spine, minimum of 4 views (72110)56 services
  4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)28 services
  5. X-ray of lower and sacral spine, 2-3 views (72100)27 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%
  • Arthritis75%
  • Diabetes43%
  • Depression38%
  • Chronic kidney disease34%

Hospitals where Hossein M. Aziz works

Medicare's Facility Affiliation Data lists Hossein M. Aziz 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 Hossein M. Aziz is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Hossein M. Aziz as a member of this group (CMS data updated October 2, 2026).

  • Ventura Orthopedics Medical Group Inc72 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in California →

Other orthopedic surgeons in Ventura

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

All orthopedic surgeons in Ventura →

Other clinicians in Ventura Orthopedics Medical Group Inc

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

Clinician information

CredentialDO
Graduation year2015 (11 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1790167054
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