Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mark A Knaub, MD

Individual provider Orthopaedic Surgery Physician · NPI 1871557876

Mark A Knaub, MD practises Orthopedic Surgery in Hershey, Pennsylvania. Graduated from University of Pittsburgh School of Medicine in 1997, 29 years ago. Practices with Phoenix Rehabilitation and Health Services Inc, a 2,720-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
29
Trained at
University of Pittsburgh School of Medicine
Licensed in
PA
In the registry since
2006
Specialties on file
3
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

30 Hope Dr Ste 2400
Hershey, PA 17033-2036
Phone: (800) 243-1455
Fax: (717) 531-0983
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 500 University Dr, Hershey, PA 17033-2360 — (800) 243-1455

Specialties & licences

Orthopaedic Surgery of the Spine Physician (primary) Taxonomy 207XS0117X · Licence MD070430L (PA)
Orthopaedic Surgery Physician Taxonomy 207X00000X · Licence MD070430L (PA)
Adult Reconstructive Orthopaedic Surgery Physician Taxonomy 207XS0114X · Licence MD070430L (PA)

Record details

NPI number1871557876
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 14, 2006
Last updated in NPPESMarch 27, 2025
Certification dateMarch 27, 2025

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolUNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE
Graduated 1997 (29 years in practice)
Group practice Phoenix Rehabilitation And Health Services Inc — 2720 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Spinal fusion 99 times · 73rd percentile
Laminectomy or laminotomy (partial removal of spine bones) 38 times · 68th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients180
Services billed 388 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

Colleagues at Phoenix Rehabilitation and Health Services Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2720 clinicians in the practice; 12 are shown here.

Other providers in Hershey