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

David C Mares, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1396770335

David C Mares, MD is registered under Pulmonary Disease in Anderson, Indiana. Graduated from Indiana University School of Medicine in 1998, 28 years ago. Practices with Medical Specialists of Madison County PC, a 4-clinician group and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
28
Trained at
Indiana University School of Medicine
Licensed in
IN
In the registry since
2006
Specialties on file
2
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

2101 Jackson St #110
Anderson, IN 46016
Phone: (765) 643-6012
Fax: (765) 646-9054
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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 01041834 (IN)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 01041834 (IN)

Record details

NPI number1396770335
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 11, 2006
Last updated in NPPESDecember 19, 2024
Certification dateDecember 19, 2024

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1998 (28 years in practice)
Group practice Medical Specialists Of Madison County Pc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients366
Services billed 1,408 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $208,596 84 payments
Honoraria $10,000 3 payments
Food and Beverage $6,411 135 payments · a meal or drink at a meeting or visit, not a fee
Travel and Lodging $2,922 13 payments · travel or lodging paid or reimbursed, such as to attend a conference
Education $17 1 payment · educational material or training, 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. Those with a page here are linked.

  • Community Hospital Of Anderson And Madison County Hospital · Anderson, IN · listed as Community Hospital of Anderson & Madison County
  • Southerncare South Bend Hospice · Mishawaka, IN · listed as Southerncare, Inc
  • Ascension St Vincent Anderson Hospital · Anderson, IN
  • Ascension St Vincent Kokomo Hospital · Kokomo, IN
  • Ascension St Vincent Mercy Hospital · Elwood, IN
  • Compassus - Indianapolis Hospice · Muncie, IN

Colleagues at Medical Specialists of Madison County PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Anderson