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Orthopedic Surgery

John D. Hermansdorfer, MD

Works at hospitals in Cocoa Beach, FL · Melbourne, FL · Palm Bay, FL · Florida

Summary

Dr. John D. Hermansdorfer, MD is an orthopedic surgeon at 2222 S Harbor City Blvd, Suite 420, Melbourne, FL 32901. Phone: (321) 768-9914. Accepts Medicare assignment. In 2024, John D. Hermansdorfer had 294 Original Medicare patients and 2,192 services. NPI 1164425393. 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 John D. Hermansdorfer, 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 John D. Hermansdorfer accept Medicare assignment?
Yes. Medicare's clinician data says John D. Hermansdorfer 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 John D. Hermansdorfer see?
In 2024, CMS data shows 294 Original Medicare patients and 2,192 services for John D. Hermansdorfer. This counts Original Medicare only and measures volume, not quality.
What is John D. Hermansdorfer's NPI number?
1164425393. 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 John D. Hermansdorfer, 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 patients294
Services billed to Medicare2,192
Different services or procedures88
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Injection, methylprednisolone acetate, 1 mg (J1010)1,420 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)178 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)98 services
  4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)50 services
  5. Shaving of part of shoulder bone and repair of ligament using an endoscope (29826)41 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%
  • Arthritis74%
  • Anxiety33%
  • Ischemic heart disease31%
  • Diabetes26%

Hospitals where John D. Hermansdorfer works

Medicare's Facility Affiliation Data lists John D. Hermansdorfer 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.

  • Cape Canaveral HospitalCocoa Beach, FL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 100177
  • Holmes Regional Medical CenterMelbourne, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100019
  • Palm Bay HospitalPalm Bay, FL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 100316
  • Viera HospitalMelbourne, FL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 100315

Practice locations

Addresses where John D. Hermansdorfer is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists John D. Hermansdorfer as a member of these groups (CMS data updated October 2, 2026).

  • Health First Medical Group, LLC711 clinicians in the group
  • H2 Rehabilitation Services of Florida LLC296 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in Florida →

Other orthopedic surgeons in Melbourne

Clinicians with the same Medicare primary specialty in Melbourne, FL — not a recommendation.

All orthopedic surgeons in Melbourne →

Other clinicians in Health First Medical Group, LLC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Kentucky College Of Medicine
Graduation year1982 (44 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1164425393
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