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Dr. Mark D. Mccaslin, MD

Radiology (Diagnostic Radiology Physician)

  • Medicare participating

At a glance

Years since graduation
37
In the NPI registry since
2005
Medicare patients seen, 2024
2,490

Licensed in Alabama since 1993, according to the Alabama Board of Medical Examiners and Medical Licensure Commission. 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

  • 1989Medical school: University of Alabama School of Medicine
  • 2005Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

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

  • Diagnostic Radiology Physician primary
    AL license 17263 (first issued 1993; active)

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

Map: Radiology 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
2,490
Services billed
3,319
Patients’ average age
75
Most frequent Medicare services, 2023
ServiceTimesPatients
X-ray of chest, 1 view553497
X-ray of chest, 2 views313309
Screening mammography147147
Screening 3d breast mammography124124
Ct scan head or brain without contrast105103
Ct scan of abdomen and pelvis with contrast9897
Mri scan of pelvis before and after contrast6564
X-ray of abdomen, 1 view5959
Ct scan of chest without contrast5656
Ct scan of abdomen and pelvis without contrast5655

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.

Payments from drug and device companies

In 2025, 1 companies reported 1 payments worth $20.14 in total to this clinician.

By company
Cleerly, Inc.$20.14
By type
Food and Beverage$20.14

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 Alabama →

Other Radiology clinicians in Mobile

Sources

NPI registry (CMS NPPES, November 2026; record last updated September 7, 2010), 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 1801877543. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.