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Physical Medicine and Rehabilitation

Gunnar W. Zorn Iii, MD

Works at hospitals in Lewes, DE · Onancock, VA · Berlin, MD … · Delaware, Virginia, Maryland

Summary

Dr. Gunnar W. Zorn Iii, MD is a rehabilitation doctor at 100 E Carroll St, Box 400, Salisbury, MD 21801. Phone: (410) 543-7065. Accepts Medicare assignment. In 2024, Gunnar W. Zorn Iii had 1,147 Original Medicare patients and 6,851 services. NPI 1720081920. 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 Gunnar W. Zorn Iii, 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 Gunnar W. Zorn Iii accept Medicare assignment?
Yes. Medicare's clinician data says Gunnar W. Zorn Iii 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 Gunnar W. Zorn Iii see?
In 2024, CMS data shows 1,147 Original Medicare patients and 6,851 services for Gunnar W. Zorn Iii. This counts Original Medicare only and measures volume, not quality.
What is Gunnar W. Zorn Iii's NPI number?
1720081920. 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 Gunnar W. Zorn Iii, 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 patients1,147
Services billed to Medicare6,851
Different services or procedures20
Participating Medicare providerYes
Average age of these patients78

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)3,354 services
  2. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes (99307)1,071 services
  3. Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)1,027 services
  4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)341 services
  5. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)327 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%
  • Chronic kidney disease55%
  • Diabetes47%
  • Depression47%

Hospitals where Gunnar W. Zorn Iii works

Medicare's Facility Affiliation Data lists Gunnar W. Zorn Iii 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.

  • Beebe Medical CenterLewes, DE · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 080007
  • Riverside Shore Memorial HospitalOnancock, VA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 490037
  • Tidalhealth Atlantic IncBerlin, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210061
  • Tidalhealth Nanticoke, Inc.Seaford, DE · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 080006
  • Tidalhealth Peninsula Regional, IncSalisbury, MD · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 210019

Practice locations

Addresses where Gunnar W. Zorn Iii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Gunnar W. Zorn Iii as a member of this group (CMS data updated October 2, 2026).

  • Ability Rehab Associates9 clinicians in the group

Specialties

Find other Physical Medicine and Rehabilitation doctors in Maryland →

Other rehabilitation doctors in Salisbury

Clinicians with the same Medicare primary specialty in Salisbury, MD — not a recommendation.

All rehabilitation doctors in Salisbury →

Other clinicians in Ability Rehab Associates

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

Clinician information

CredentialMD
Medical schoolJefferson Medical College Of Thomas Jefferson University
Graduation year1988 (38 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1720081920
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