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Orthopedic Surgery

Earl L. Feng, MD

Works at hospitals in Mesa, AZ · Arizona

Summary

Dr. Earl L. Feng, MD is an orthopedic surgeon at 1675 E Melrose St, Suite 101 103, Gilbert, AZ 85297. Phone: (602) 631-3161. Accepts Medicare assignment. In 2024, Earl L. Feng had 503 Original Medicare patients and 3,467 services. NPI 1609844182. 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: Orthopedic surgeon (Medicare lists Orthopedic Surgery)
  • Address: 1675 E Melrose St, Suite 101 103, Gilbert, AZ 85297 · Directions (1 more location)
  • Phone: (602) 631‑3161
  • Medicare: Accepts Medicare assignment
  • Hospital: Arizona Spine and Joint Hospital
  • Group practice: Orthopedic Specialists of North America PLLC
  • Medical school: University Of Illinois College Of Med (chi/peor/rock/chm-Urb) · graduated 1988 (38 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Earl L. Feng, 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 Earl L. Feng accept Medicare assignment?
Yes. Medicare's clinician data says Earl L. Feng 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 Earl L. Feng see?
In 2024, CMS data shows 503 Original Medicare patients and 3,467 services for Earl L. Feng. This counts Original Medicare only and measures volume, not quality.
What is Earl L. Feng's NPI number?
1609844182. 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 Earl L. Feng, 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 patients503
Services billed to Medicare3,467
Different services or procedures27
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)1,050 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)397 services
  3. X-ray of knee, 4 or more views (73564)257 services
  4. Aspiration and/or injection of fluid from large joint (20610)245 services
  5. X-ray of hip, 2-3 views (73502)233 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%
  • Ischemic heart disease30%
  • Chronic kidney disease27%
  • Diabetes24%

Hospitals where Earl L. Feng works

Medicare's Facility Affiliation Data lists Earl L. Feng 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 Earl L. Feng is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Earl L. Feng as a member of this group (CMS data updated October 2, 2026).

  • Orthopedic Specialists of North America PLLC309 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in Arizona →

Other orthopedic surgeons in Gilbert

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

All orthopedic surgeons in Gilbert →

Other clinicians in Orthopedic Specialists of North America PLLC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Illinois College Of Med (chi/peor/rock/chm-Urb)
Graduation year1988 (38 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1609844182
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