Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mark D Peacock, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1427052224

Mark D Peacock, MD is registered under Pulmonary Disease in Nashville, Tennessee. Graduated from University of Missouri, Columbia School of Medicine in 1986, 40 years ago. Practices with Advanced Diagnostic Imaging PC, a 529-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Tennessee.

Years since qualifying
40
Trained at
University of Missouri, Columbia School of Medicine
Licensed in
TN
In the registry since
2005
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

300 20th Ave N Ste G-4
Nashville, TN 37203-2131
Phone: (615) 284-5098
Fax: (615) 284-5385
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 27326 (TN)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 27326 (TN)
Sleep Medicine (Internal Medicine) Physician Taxonomy 207RS0012X · Licence 27326 (TN)

Record details

NPI number1427052224
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 9, 2005
Last updated in NPPESFebruary 21, 2023
Certification dateFebruary 21, 2023

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolUNIVERSITY OF MISSOURI, COLUMBIA SCHOOL OF MEDICINE
Graduated 1986 (40 years in practice)
Group practice Advanced Diagnostic Imaging Pc — 529 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 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 patients89
Services billed 244 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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 $153 9 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 Advanced Diagnostic Imaging PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 529 clinicians in the practice; 12 are shown here.

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