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Dr. John A. Baker, M.D.

Orthopedic Surgery (Orthopaedic Surgery Physician)

  • Medicare participating

At a glance

In the NPI registry since
2006
Medicare patients seen, 2024
304

Licensed in Texas since 1981, according to the Texas Medical Board. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.

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

  • 2006Registered 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

  • Orthopaedic Surgery Physician primary
    TX license G0655 (first issued 1981; active)
  • Sports Medicine (Orthopaedic Surgery) Physician
    TX license G0655 (first issued 1981; active)

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

Map: Orthopedic Surgery per capita by county →

Medicare patients and services

Medicare patients, 2024
304
Services billed
5,012
Patients’ average age
74
Most frequent Medicare services, 2023
ServiceTimesPatients
Aspiration and/or injection of fluid from large joint977272
Injection, triamcinolone acetonide, not otherwise specified, 10 mg882235
Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose54290
Established patient office or other outpatient visit, 20-29 minutes318184
Established patient office or other outpatient visit, 10-19 minutes192106
X-ray of knee, 4 or more views166103
Hyaluronan or derivative, monovisc, for intra-articular injection, per dose8446
Established patient office or other outpatient visit, 30-39 minutes5049
X-ray of shoulder, minimum of 2 views4537
New patient office or other outpatient visit, 30-44 minutes4242

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
Meloxicam
Other prescribers in Dallas, TX
208
Celecoxib
Other prescribers in Dallas, TX
21

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

Payments from drug and device companies

In 2025, 1 companies reported 1 payments worth $29.70 in total to this clinician.

By company
Orthofix Medical, Inc.$29.70
By type
Food and Beverage$29.70

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in Texas →

Other Orthopedic Surgery clinicians in Dallas

Sources

NPI registry (CMS NPPES, November 2026; record last updated April 22, 2020), 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 1710907423. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.