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

Mrs. Colleen Wagner Hammerstone, PA-C

Individual provider Physician Assistant · NPI 1285038166

Mrs. Colleen Wagner Hammerstone, PA-C is a Physician Assistant in Allentown, Pennsylvania. Qualified in 2014, 12 years ago. Practices with Lehigh Valley Physician Group, a 2,493-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in North Carolina and Pennsylvania.

Years since qualifying
12
Licensed in
NC, PA
In the registry since
2014
Specialties on file
2
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1250 S Cedar Crest Blvd Ste 110
Allentown, PA 18103
Phone: (610) 402-8900
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 11200 Governor Manly Way Ste 309, Raleigh, NC 27614-7375 — (919) 562-9410
  • 11200 Governor Manly Way Ste 309, Raleigh, NC 27614-7375 — (919) 562-9410

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence MA057209 (PA)
Physician Assistant Taxonomy 363A00000X · Licence 0010-05326 (NC)

Record details

NPI number1285038166
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C
Sole proprietorYes
NPI enumeratedOctober 21, 2014
Last updated in NPPESAugust 13, 2020
Certification dateAugust 13, 2020

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Lehigh Valley Physician Group — 2493 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations11 on file with Medicare

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 patients139
Services billed 167 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 $186 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 Allentown