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Pathology

Oscar H. Otanez, MD

Works at hospitals in Mission Viejo, CA · California

Summary

Dr. Oscar H. Otanez, MD is a pathologist at 1 Hoag Dr, Newport Beach, CA 92663. Phone: (949) 891-1297. Accepts Medicare assignment. In 2024, Oscar H. Otanez had 1,444 Original Medicare patients and 3,617 services. NPI 1225226590. 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: Pathologist (Medicare lists Pathology)
  • Address: 1 Hoag Dr, Newport Beach, CA 92663 · Directions
  • Phone: (949) 891‑1297
  • Medicare: Accepts Medicare assignment
  • Hospital: Providence Mission Hospital
  • Group practice: Newport Harbor Pathology Medical Group Inc
  • Medical school: Stanford University School Of Medicine · graduated 2006 (20 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Oscar H. Otanez, 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 Oscar H. Otanez accept Medicare assignment?
Yes. Medicare's clinician data says Oscar H. Otanez 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 Oscar H. Otanez see?
In 2024, CMS data shows 1,444 Original Medicare patients and 3,617 services for Oscar H. Otanez. This counts Original Medicare only and measures volume, not quality.
What is Oscar H. Otanez's NPI number?
1225226590. 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 Oscar H. Otanez, 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 patients1,444
Services billed to Medicare3,617
Different services or procedures29
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Pathology examination of tissue using a microscope, intermediate complexity (88305)2,750 services
  2. Cell examination of specimen, concentration technique (88108)120 services
  3. Special stained specimen slides to examine tissue, each additional procedure (88341)114 services
  4. Special stained specimen slides to examine tissue, initial procedure (88342)96 services
  5. Preparation of tissue for examination by removing any calcium present (88311)79 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 cholesterol75%
  • High blood pressure73%
  • Arthritis45%
  • Ischemic heart disease29%
  • Diabetes25%
  • Chronic kidney disease25%

Hospitals where Oscar H. Otanez works

Medicare's Facility Affiliation Data lists Oscar H. Otanez 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 Oscar H. Otanez is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Oscar H. Otanez as a member of this group (CMS data updated October 2, 2026).

  • Newport Harbor Pathology Medical Group Inc27 clinicians in the group

Specialties

Find other Pathology doctors in California →

Other pathologists in Newport Beach

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

All pathologists in Newport Beach →

Other clinicians in Newport Harbor Pathology Medical Group Inc

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

Clinician information

CredentialMD
Medical schoolStanford University School Of Medicine
Graduation year2006 (20 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1225226590
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