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Christopher Groff, PA

Physician Assistants (Physician Assistant)

  • Medicare participating

At a glance

Years since graduation
12
In the NPI registry since
2014
Medicare patients seen, 2024
139

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is

Education and training

  • 2014Registered with an NPI (national billing number; not a license date)

Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Physician Assistant primary
    OH license 50.004101

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Physician Assistants per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
139
Services billed
1,888
Patients’ average age
75
Most frequent Medicare services, 2023
ServiceTimesPatients
Injection, triamcinolone acetonide, not otherwise specified, 10 mg19217
Established patient office or other outpatient visit, 20-29 minutes4743
Replacement of knee joint, both sides of knee3028
Aspiration and/or injection of fluid from large joint2725
Established patient office or other outpatient visit, 30-39 minutes2726
Aspiration and/or injection of fluid large joint using ultrasound guidance2419
Hyaluronan or derivative, gel-one, for intra-articular injection, per dose2115
X-ray of knee, 4 or more views2120
X-ray of hip, 2-3 views1714
X-ray of knee, 3 views1413

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Other Physician Assistants clinicians in Dayton

Sources

NPI registry (CMS NPPES, November 2026; record last updated April 2, 2026), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1699177329. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.