DR. MARC D KROCK MD
NPI 1265496426
Internal Medicine - Interventional Cardiology in Mckinney, TX

Q: What is Marc Krock's NPI number?

The NPI number for Marc Krock is 1265496426. It was assigned to this individual provider in the NPPES registry on April 14, 2006.

Q: What is Marc Krock's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Q: When was this NPI record last updated?

The NPPES record for Marc Krock was last updated on April 11, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years 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.

Active since April 14, 2006PECOS EnrolledAccepts Medicare Assignment

85.52/100

CMS Quality Rating

4510 MEDICAL CENTER DR, SUITE 209, MCKINNEY, TX 75069(469) 440-2570(214) 548-5667 Get Directions Write a Review

NPPES record last updated: April 11, 2017. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Marc D Krock Md NPPES

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

DR. MARC D KROCK MD (NPI 1265496426) is an individual interventional cardiology provider in Mckinney, Texas, licensed in Texas (M1849) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Hunt Regional Medical Center, and is a graduate of University Of Washington School Of Medicine (1998).

NPPES Registry Identity

NPI1265496426

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameDR. MARC D KROCKCredential: MD

Location Address4510 MEDICAL CENTER DR, SUITE 209Mckinney, TX 75069-1650

Mailing Address4510 Medical Center Dr., Suite 209Mckinney, TX 75069-6174 · (469) 440-2570 · Fax (214) 548-5667

Phone(469) 440-2570

Fax(214) 548-5667

Sole ProprietorNo

Medical School CMSUniversity Of Washington School Of MedicineGraduated 1998

Enumeration DateApril 14, 2006

Last NPPES UpdateApril 11, 2017

✔ NPI 1265496426 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RI0011X

License✔ Licensed in TX · M1849

Definition

An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License M1849 (TX)

Also ListedNuclear Medicine · Nuclear CardiologyTaxonomy 207UN0901X · License M1849 (TX)

4510 MEDICAL CENTER DR, Mckinney, TX 75069

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Other Identifiers 3

Medicare UPINH74949TX

Medicaid177280801TX

Medicare PIN8D9233TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Marc D Krock Md 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 ID5395770176

PECOS Enrollment IDI20050929001076

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.

Medicare Billing Reassignment

Medicare enrollment records show Marc Krock reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Heart Smart Group

12 mi

Interventional Cardiology

6044 RACHEL DR
Frisco, TX 75034

Reassigned Medicare billing, Texas enrollment
4 clinicians in this Medicare group

NPI 1407248404 (972) 896-5036

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 15

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.

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.

1,515 services631 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

1,505 services633 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

273 services258 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

122 services122 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

103 services97 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

100 services62 patients

Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional 93228

An Electrocardiogram (ECG) is a non-invasive test that records the electrical signals in your heart. For up to 30 days, a small device will continuously monitor your heart's activity. A healthcare professional will then review the data and provide a report on your heart's function.

78 services75 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

54 services53 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018

An exercise or drug-induced heart stress test with ECG is a procedure to assess how your heart functions under stress. It can involve exercising or medication to make your heart work harder while an ECG records its activity. A physician reviews the results.

53 services53 patients

Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report 93351

This procedure involves using ultrasound technology to create images of your heart while you rest, exercise, or undergo drug-induced stress. An ECG continuously monitors your heart's electrical activity. It helps doctors assess heart health and function.

47 services47 patients

Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days 93296

This procedure involves remotely monitoring your pacemaker or implantable defibrillator system. Over a 90-day period, we check the device's performance and your heart's activity. This helps ensure the device is functioning properly and providing the best possible support for your heart health.

46 services20 patients

Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days 93294

This procedure evaluates your pacemaker system remotely for up to 90 days. It checks whether single, dual, multiple lead, or leadless pacemakers are working properly. It's a safe, convenient way to ensure your heart device is functioning optimally.

45 services20 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

26 services26 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

26 services26 patients

Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist 93458

This procedure involves placing a tube into your left lower heart chamber and coronary artery. It helps doctors diagnose heart conditions by allowing them to view these areas in detail. A radiologist will review the images to ensure accurate diagnosis.

13 services12 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Hunt Regional Medical Center

Acute Care Hospitals · Greenville, TX

3/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number450352

Location4215 Joe Ramsey Blvd EGreenville, TX 75401 · Hunt County

Emergency services Birthing friendly

Medical Center Of Mckinney

Acute Care Hospitals · Mckinney, TX

3/5 CMS rating

OwnershipProprietary

CMS Certification Number450403

Location4500 Medical Center DriveMckinney, TX 75069 · Collin County

Emergency services Birthing friendly

Medical City Plano

Acute Care Hospitals · Plano, TX

3/5 CMS rating

OwnershipProprietary

CMS Certification Number450651

Location3901 W 15th StPlano, TX 75075 · Collin County

Emergency services Birthing friendly

Texas Health Presbyterian Hospital Allen

Acute Care Hospitals · Allen, TX

4/5 CMS rating

OwnershipGovernment - Federal

CMS Certification Number450840

Location1105 Central Expressway NorthAllen, TX 75013 · Collin County

Emergency services Birthing friendly

Baylor Scott & White The Heart Hospital - Plano

Acute Care Hospitals · Plano, TX

5/5 CMS rating

OwnershipProprietary

CMS Certification Number670025

Location1100 Allied DrivePlano, TX 75093 · Collin County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75069 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

$126.40 typical visit price

range $54.84 – $166.88

Typical copayment $31.60 (range $13.71 – $41.72)

Most-billed visit code 99204

Established Patient

$97.05 typical visit price

range $17.52 – $136.11

Typical copayment $24.26 (range $4.38 – $34.02)

Most-billed visit code 99214

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.

85.52/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

87.12

Improvement Activities

Cost

68.93

Other Providers at the Same Location NPPES 20

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

ALLEN AMBULATORY ANESTHESIA, PLLC

Anesthesiology

4510 MEDICAL CENTER DR, SUITE C-150
MCKINNEY, TX 75069

Collin County (972) 547-1580

DR. CLAUDIA J MCDONALD MD

Specialist

4510 MEDICAL CENTER DR, STE 300
MCKINNEY, TX 75069

Collin County (214) 544-1300

TINA M GINGRICH M.D.

Obstetrics & Gynecology

4510 MEDICAL CENTER DR
MCKINNEY, TX 75069

Collin County (214) 295-8675

JACQUELYN IRENE APLIGIAN MS,CCC/A

Audiologist

4510 MEDICAL CENTER DR, SUITE 100
MCKINNEY, TX 75069

Collin County (972) 984-1050

CARING PARTNER MEDICAL CLINIC PLLC

Clinic/Center (Primary Care)

4510 MEDICAL CENTER DR, SUITE 313
MCKINNEY, TX 75069

Collin County (469) 714-0138

NORTH TEXAS ORTHOPAEDIC & SPINE, P.A.

Orthopaedic Surgery

4510 MEDICAL CENTER DR, SUITE 312
MCKINNEY, TX 75069

Collin County (214) 592-9955

SHANKAR SUNDARAM MD PA

Thoracic Surgery (Cardiothoracic Vascular Surgery)

4510 MEDICAL CENTER DR, SUITE 112
MCKINNEY, TX 75069

Collin County (972) 548-7708

AMNA IFTIKHAR M.D.

Internal Medicine

4510 MEDICAL CENTER DR, SUITE 316
MCKINNEY, TX 75069

Collin County (214) 544-3355

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 Marc Krock's NPI number?

The NPI number for Marc Krock is 1265496426. It was assigned to this individual provider in the NPPES registry on April 14, 2006.

Where is Marc Krock located?

Marc Krock practices at 4510 Medical Center Dr Suite 209, Mckinney, TX 75069. The listed phone number is (469) 440-2570.

What is Marc Krock's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Is Marc Krock enrolled in Medicare?

Yes. Marc Krock 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.

Which organization bills Medicare for Marc Krock's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marc Krock reassigns Medicare benefits to Heart Smart Group (Frisco, TX). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marc Krock's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marc Krock accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 4 other insurers list Marc Krock 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.

Is Marc Krock affiliated with any hospitals?

According to CMS data, Marc Krock is affiliated with Hunt Regional Medical Center, Medical Center Of Mckinney, Medical City Plano, Texas Health Presbyterian Hospital Allen and Baylor Scott & White The Heart Hospital - Plano.

When was this NPI record last updated?

The NPPES record for Marc Krock was last updated on April 11, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years 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.