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Michael D. Barker, PAC

Physician Assistants (Surgical Physician Assistant)

  • Medicare participating

At a glance

Years since graduation
25
In the NPI registry since
2005
Medicare patients seen, 2024
96

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. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 2005Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

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

  • Surgical Physician Assistant primary
    OR license PA00782

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
96
Services billed
1,137
Patients’ average age
75
Most frequent Medicare services, 2023
ServiceTimesPatients
Injection, triamcinolone acetonide, not otherwise specified, 10 mg23733
Established patient office or other outpatient visit, 30-39 minutes220133
Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg5913
Aspiration and/or injection of fluid from large joint4328
Established patient office or other outpatient visit, 20-29 minutes2623
New patient office or other outpatient visit, 45-59 minutes1717
X-ray of foot, minimum of 3 views1512
X-ray of shoulder, minimum of 2 views1411
X-ray of finger, minimum of 2 views1311

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

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Methylprednisolone
Other prescribers in Medford, OR
15

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

Other Physician Assistants clinicians in Medford

Sources

NPI registry (CMS NPPES, November 2026; record last updated July 13, 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 1083602171. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.