Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARK ORMAN HARDIN M.D.
NPI 1861697815
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Little Rock, AR

Active since June 19, 2007PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
9601 BAPTIST HEALTH DR STE 200, LITTLE ROCK, AR 72205(501) 223-2860(501) 223-2258 Get Directions Write a Review

NPPES record last updated: June 24, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 30, 2025, Jun 4, 2024 (2 updates tracked since 2024).

About Mark Orman Hardin M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK ORMAN HARDIN M.D. (NPI 1861697815) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Little Rock, Arkansas, licensed in Arkansas (E-14521) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS and is a graduate of University Of Arkansas College Of Medicine (2007).

NPPES Registry Identity

NPI1861697815
Entity TypeIndividualMale
Primary Taxonomy208G00000X
Provider Legal NameMARK ORMAN HARDINCredential: M.D.
Location Address9601 BAPTIST HEALTH DR STE 200Little Rock, AR 72205-6342
Mailing Address11001 Executive Center Dr Ste 200Little Rock, AR 72211-4393 · (501) 223-2860 · Fax (501) 223-2258
Fax(501) 223-2258
Sole ProprietorNo
Medical School CMSUniversity Of Arkansas College Of MedicineGraduated 2007
Enumeration DateJune 19, 2007
Last NPPES UpdateJune 24, 20262 updates tracked since enumeration
NPPES CertifiedJune 24, 2026
NPI 1861697815 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyThoracic Surgery (Cardiothoracic Vascular Surgery)Allopathic & Osteopathic Physicians
Taxonomy Code208G00000X
License Licensed in AR · E-14521
Definition
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.
Also ListedSurgeryTaxonomy 208600000X · License E-14521 (AR)
9601 BAPTIST HEALTH DR STE 200, Little Rock, AR 72205

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Mark Orman Hardin M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1658699699
PECOS Enrollment IDI20210729001470
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Coronary artery bypass using artery graft, 1 graft 33533
A coronary artery bypass with one artery graft is a surgical procedure to improve blood flow to your heart. An artery from another part of your body is used to bypass a blocked or narrowed coronary artery. This can help reduce chest pain and risk of heart attack.
54 services54 patients
Harvest of vein using an endoscope 33508
Harvesting a vein using an endoscope is a procedure where a small camera is used to help surgeons remove a vein from your body. This vein is often used to bypass a blocked artery, improving blood flow to your heart.
53 services53 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
47 services45 patients
Coronary artery bypass using vein or artery graft, 2 grafts 33518
A coronary artery bypass with 2 grafts is a surgery to improve blood flow to your heart. A surgeon takes a healthy vein or artery from your body and attaches it to the blocked coronary artery. This creates a new path for blood to flow, bypassing the blockage.
30 services30 patients
Replacement of aortic valve through the skin and femoral artery 33361
This procedure, known as Transcatheter Aortic Valve Replacement (TAVR), involves replacing a damaged aortic valve through a small incision in the leg. A catheter is inserted into the femoral artery and guided up to the heart. The new valve is then positioned and deployed, restoring normal blood flow.
29 services29 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
28 services27 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 72205 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$157.74 typical visit price
range $51.36 – $157.74
Typical copayment $39.43 (range $12.84 – $39.43)
Most-billed visit code 99205
Established Patient
$64.56 typical visit price
range $16.16 – $128.77
Typical copayment $16.14 (range $4.04 – $32.19)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers16 claims16 services$21.19 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers16 claims16 services$118.80 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Thoracic Surgery (Cardiothoracic Vascular Surgery)
9601 BAPTIST HEALTH DR STE 200
LITTLE ROCK, AR 72205
Nurse Practitioner (Acute Care)
9601 BAPTIST HEALTH DR STE 200
LITTLE ROCK, AR 72205
Physician Assistant (Surgical)
9601 BAPTIST HEALTH DR STE 200
LITTLE ROCK, AR 72205
Nurse Practitioner (Gerontology)
9601 BAPTIST HEALTH DR STE 200
LITTLE ROCK, AR 72205
Thoracic Surgery (Cardiothoracic Vascular Surgery)
9601 BAPTIST HEALTH DR STE 200
LITTLE ROCK, AR 72205
Ophthalmology
9601 BAPTIST HEALTH DR STE 200
LITTLE ROCK, AR 72205
Nurse Practitioner (Acute Care)
9601 BAPTIST HEALTH DR STE 200
LITTLE ROCK, AR 72205
Thoracic Surgery (Cardiothoracic Vascular Surgery)
9601 BAPTIST HEALTH DR STE 200
LITTLE ROCK, AR 72205

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Hardin's NPI number?

The NPI number for Mark Hardin is 1861697815. It was assigned to this individual provider in the NPPES registry on June 19, 2007.

Where is Mark Hardin located?

Mark Hardin practices at 9601 Baptist Health Dr Ste 200, Little Rock, AR 72205. The listed phone number is (501) 223-2860.

What is Mark Hardin's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Is Mark Hardin enrolled in Medicare?

Yes. Mark Hardin is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Mark Hardin accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Louisiana Healthcare Connections, Ambetter from Magnolia Health and Ambetter from Superior HealthPlan and 5 other insurers list Mark Hardin as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mark Hardin was last updated on June 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 48 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.