MARK O. HARDIN M.D. – NPI #1861697815
Thoracic Surgery (Cardiothoracic Vascular Surgery)

A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.

Health Care Provider Taxonomy Code for Thoracic Surgery (Cardiothoracic Vascular Surgery)

MARK HARDIN is a thoracic surgeon located in LITTLE ROCK, AR. NPPES has assigned the NPI number 1861697815 to MARK HARDIN on June 19, 2007. It is a Type-1 NPI, indicating this NPI number is associated with an individual. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 208G00000X from the Health Care Provider Taxonomy code set, which is classified as Thoracic Surgery (Cardiothoracic Vascular Surgery).

The NPI profile was last updated on Dec 30, 2025. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for MARK HARDIN below.

NPI Profile for
MARK O. HARDIN

NPI Number
1861697815
Enumeration Date

(about 19 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
MARK O. HARDIN
Credentials
M.D.
Primary location
9501 BAPTIST HEALTH DR # 200
LITTLE ROCK, AR 72205-6225
Phone: (501) 223-2860 Fax: (501) 223-2258
1 Other location(s):
4301 W Markham St # 713
Little Rock, AR 72205-7101
Phone: (501) 686-8000
Fax: (501) 526-5148
Mailing address
11001 EXECUTIVE CENTER DR STE 200
LITTLE ROCK, AR 72211-4393
Phone: (501) 223-2860 Fax: (501) 223-2258
Sole Proprietor
No
Updated
Certification Date
Dec 30, 2025

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
208G00000X
- Thoracic Surgery (Cardiothoracic Vascular Surgery) (Primary)		 AR E-14521
208600000X
- Surgery		 AR E-14521

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Additional Information

Education
UNIVERSITY OF ARKANSAS COLLEGE OF MEDICINE - Graduated 2007
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
MARK HARDIN is affiliated with the following medical group(s):
  • HOSPITAL
    • ARKANSAS HEART HOSPITAL, LLC
      1701 S SHACKLEFORD ROAD
      LITTLE ROCK, AR 72211
    • ARKANSAS HEART HOSPITAL-ENCORE
      1901 ENCORE WAY
      BRYANT, AR 72022

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