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Otolaryngology

Jill M. Mazza, MD

Works at hospitals in Burbank, CA · California

Summary

Dr. Jill M. Mazza, MD is an ENT doctor at 19950 Rinaldi St, Porter Ranch, CA 91326. Phone: (818) 403-2400. Accepts Medicare assignment. In 2024, Jill M. Mazza had 466 Original Medicare patients and 1,112 services. NPI 1700049731. 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: ENT doctor (Medicare lists Otolaryngology)
  • Address: 19950 Rinaldi St, Porter Ranch, CA 91326 · Directions (2 more locations)
  • Phone: (818) 403‑2400
  • Medicare: Accepts Medicare assignment
  • Hospital: Providence Saint Joseph Medical Center
  • Group practice: Providence Facey Medical Foundation
  • Medical school: Albany Medical College Of Union University · graduated 2008 (18 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Jill M. Mazza, 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 Jill M. Mazza accept Medicare assignment?
Yes. Medicare's clinician data says Jill M. Mazza 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 Jill M. Mazza see?
In 2024, CMS data shows 466 Original Medicare patients and 1,112 services for Jill M. Mazza. This counts Original Medicare only and measures volume, not quality.
What is Jill M. Mazza's NPI number?
1700049731. 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 Jill M. Mazza, 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 patients466
Services billed to Medicare1,112
Different services or procedures40
Participating Medicare providerYes
Average age of these patients76

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)413 services
  2. Removal of impacted ear wax (69210)256 services
  3. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)203 services
  4. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)38 services
  5. Comprehensive hearing and speech recognition test (92557)25 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 pressure67%
  • Arthritis57%
  • Ischemic heart disease28%
  • Diabetes26%
  • Osteoporosis26%

Hospitals where Jill M. Mazza works

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

Group practices

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

  • Providence Facey Medical Foundation385 clinicians in the group

Specialties

Find other Otolaryngology doctors in California →

Other ENT doctors in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All ENT doctors in California →

Other clinicians in Providence Facey Medical Foundation

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

Clinician information

CredentialMD
Medical schoolAlbany Medical College Of Union University
Graduation year2008 (18 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1700049731
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