Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. John Zachary Shumko, MD

Individual provider Physical Medicine & Rehabilitation Physician · NPI 1295739571

Dr. John Zachary Shumko, MD is registered under Physical Medicine and Rehabilitation in Chatham, New Jersey. Graduated from Rowan University School of Osteopathic Medicine in 1992, 34 years ago. Practices with New Jersey Spine Center, LLC, an 11-clinician group and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
34
Trained at
Rowan University School of Osteopathic Medicine
Licensed in
NJ
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

40 Main St
Chatham, NJ 07928-2431
Phone: (973) 635-0800
Fax: (973) 635-3137
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physical Medicine & Rehabilitation Physician (primary) Taxonomy 208100000X · Licence MA60908 (NJ)
Neuromuscular Medicine (Psychiatry & Neurology) Physician Taxonomy 2084N0008X · Licence 25MA06090800 (NJ)

Record details

NPI number1295739571
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 2, 2005
Last updated in NPPESSeptember 25, 2023
Certification dateSeptember 25, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICAL MEDICINE AND REHABILITATION
Medical schoolROWAN UNIVERSITY SCHOOL OF OSTEOPATHIC MEDICINE
Graduated 1992 (34 years in practice)
Group practice New Jersey Spine Center, Llc — 11 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients311
Services billed 786 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Cooperman Barnabas Medical Center Hospital · Livingston, NJ · listed as Cooperman Barnabas Medical Center Inc
  • Morristown Medical Center Hospital · Morristown, NJ
  • Overlook Medical Center Hospital · Summit, NJ

Also affiliated with 1 inpatient rehabilitation facility, which CMS identifies by certification number only.

Colleagues at New Jersey Spine Center, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Chatham