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

Dr. Daniel John Terpstra, DO

Individual provider Orthopaedic Surgery Physician · NPI 1659401776

Dr. Daniel John Terpstra, DO practises Orthopedic Surgery in Bethlehem, Pennsylvania. Graduated from Philadelphia College of Osteopathic Medicine in 2002, 24 years ago. Practices with Lehigh Valley Physician Group, a 2,493-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
24
Trained at
Philadelphia College of Osteopathic Medicine
Licensed in
PA
In the registry since
2007
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

2775 Schoenersville Rd
Bethlehem, PA 18017-7307
Phone: (610) 861-8080
Fax: (610) 807-0366
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Sports Medicine (Orthopaedic Surgery) Physician (primary) Taxonomy 207XX0005X · Licence OS012645 (PA)
Orthopaedic Surgery Physician Taxonomy 207X00000X · Licence OS012645 (PA)

Record details

NPI number1659401776
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 7, 2007
Last updated in NPPESAugust 20, 2024
Certification dateAugust 20, 2024

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolPHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2002 (24 years in practice)
Group practice Lehigh Valley Physician Group — 2493 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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.

Knee replacement 28 times · 62nd percentile
Upper limb (arm) arthroscopy (minimally invasive joint repair) 16 times · 56th percentile
Hip replacement 1–10 times
Lower limb (leg) arthroscopy (minimally invasive joint repair) 1–10 times

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 patients594
Services billed 5,310 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $140 3 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Lehigh Valley Physician Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2493 clinicians in the practice; 12 are shown here.

Other providers in Bethlehem