MR. NICHOLAS PETER XENOPOULOS MD
NPI 1568548006
Internal Medicine - Interventional Cardiology in Knoxville, TN

Q: What is Nicholas Xenopoulos's NPI number?

The NPI number for Nicholas Xenopoulos is 1568548006. It was assigned to this individual provider in the NPPES registry on October 27, 2006. The provider is also known as Nicholaos Peter Xenopoulos M.D..

Q: What is Nicholas Xenopoulos's specialty?

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

Active since October 27, 2006PECOS EnrolledAccepts Medicare Assignment

79.36/100

CMS Quality Rating

9330 PARK WEST BLVD, SUITE 202, KNOXVILLE, TN 37923(865) 691-4850(865) 539-5073 Get Directions Write a Review

NPPES record last updated: April 9, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 9, 2021, Jun 17, 2020 (2 updates tracked since 2020).

On this page

About Mr. Nicholas Peter Xenopoulos Md NPPES

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

MR. NICHOLAS PETER XENOPOULOS MD (NPI 1568548006) is an individual interventional cardiology provider in Knoxville, Tennessee, licensed in Tennessee (39685) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Cumberland Medical Center, and is a graduate of Other (1985).

NPPES Registry Identity

NPI1568548006

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameMR. NICHOLAS PETER XENOPOULOSCredential: MD

Location Address9330 PARK WEST BLVD, SUITE 202Knoxville, TN 37923-4308

Mailing Address9330 Park West Blvd, Suite 202Knoxville, TN 37923-4308 · (865) 691-4850 · Fax (865) 539-5073

Phone(865) 691-4850

Fax(865) 539-5073

Sole ProprietorNo

Medical School CMSOtherGraduated 1985

Enumeration DateOctober 27, 2006

Last NPPES UpdateApril 9, 20212 updates tracked since enumeration

NPPES CertifiedApril 9, 2021

✔ NPI 1568548006 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RI0011X

License✔ Licensed in TN · 39685

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 01046596A (IN), 32179 (KY)

9330 PARK WEST BLVD, Knoxville, TN 37923

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Other Names 1

Other Name (5)Nicholaos Peter Xenopoulos M.d.

Other Identifiers 13

Other000000112862KY · Anthem Bcbs

Other6113371060A12KY · Anthem Sr. Advantage

Other5156752KY · Aetna

Other1116387KY · Passport Health Plan

Other1166305Cha Provider Network

Other415632PIN · Siho

Medicaid64321797KY

Other299856KY · Federal Black Lung Progra

Medicaid200106000IN

Other25-00486KY · United Healthcare

Other7233954008Cigna

Other3154073Bcbs Tennessee

Other060058270KY · Railroad Medicare

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Magnolia Health and more.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

Mr. Nicholas Peter Xenopoulos 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 ID4981594546

PECOS Enrollment IDI20110520000323

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 40

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.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

1,213 services1,021 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.

710 services486 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.

583 services556 patients

Anticoagulant management of patient taking warfarin 93793

Anticoagulant management with warfarin involves monitoring and adjusting your medication to prevent blood clots while minimizing the risk of bleeding. Regular blood tests measure your response to warfarin, helping adjust your dose if necessary. It's crucial to maintain a consistent diet and promptly report any changes in your health.

317 services38 patients

Blood test, clotting time 85610

A clotting time blood test helps determine how quickly your blood forms clots, a process crucial to stop bleeding. During the test, a small blood sample is taken from your arm. The sample is then analyzed in a lab to see how long it takes for a clot to form.

303 services38 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

217 services194 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.

201 services201 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

196 services177 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.

155 services153 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

135 services74 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.

127 services127 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.

116 services112 patients

Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days 93244

A heart rhythm review involves monitoring your heart's electrical activity for more than 48 hours up to 7 days. Using a device called an external EKG, doctors can track your heartbeats to detect irregularities and help diagnose heart conditions.

94 services90 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function 93325

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

94 services93 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.

86 services84 patients

Ultrasound of heart with probe in esophagus, with report 93312

This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.

82 services81 patients

Ultrasound of heart blood flow, valves and chambers 93320

An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.

82 services81 patients

Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch 92928

This procedure involves placing a small, mesh tube (stent) in your coronary artery to keep it open. A balloon is used to expand the stent and artery, improving blood flow to your heart. It's typically done for a single artery or branch.

64 services55 patients

Ultrasound evaluation of heart blood vessel or graft with review by radiologist, initial vessel 92978

This procedure involves using ultrasound technology to examine the first vessel of your heart or graft. A radiologist will review the images. It's a non-invasive way to check the health of your heart's blood vessels.

63 services59 patients

Heart muscle strain imaging 93356

Heart muscle strain imaging is a non-invasive test that uses sound waves to create pictures of your heart. It helps doctors evaluate how well your heart muscle is working and detect any damage or disease. This can aid in diagnosing heart conditions and guiding treatment plans.

60 services59 patients

Ultrasound of heart, follow-up 93308

A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.

56 services47 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

45 services45 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.

39 services31 patients

Blood test, basic group of blood chemicals (calcium, total) 80048

A basic group blood test measures the levels of certain chemicals in your blood, including calcium. This helps assess your overall health and detect potential problems. The procedure involves drawing a small amount of blood from your arm, which is then analyzed in a lab.

37 services31 patients

Routine electrocardiogram (ecg) using at least 12 leads with tracing 93005

An Electrocardiogram (ECG) is a simple, painless test that records the heart's electrical activity. Using 12 leads attached to your skin, it generates a tracing of your heart rhythm. It helps detect any heart problems by showing the timing and strength of electrical signals passing through each part of your heart.

37 services37 patients

External shock to heart to regulate heart beat 92960

This procedure, known as cardioversion, uses an external electrical shock to restore your heart's normal rhythm. It's typically performed when irregular heartbeats, or arrhythmias, are causing severe symptoms and aren't responding to medications.

34 services34 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

32 services32 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.

28 services28 patients

Electrocardiogram (ecg) up to 30 days continuous with symptom monitoring, transmission and review and report by health care professional 93272

An Electrocardiogram (ECG) is a test that records the electrical activity of your heart. For up to 30 days, a device will continuously monitor your heart's rhythm, noting any symptoms. The data is sent to a healthcare professional who reviews it and provides a report on your heart health.

28 services28 patients

Insertion of tube in left lower heart chamber, coronary artery and bypass graft for diagnosis with review by radiologist 93459

This procedure involves placing a tube into your left lower heart chamber, coronary artery, and bypass graft. It's done for diagnostic purposes and is carefully reviewed by a radiologist. This helps determine the health of your heart and arteries, aiding in future treatment plans.

27 services26 patients

Electrocardiogram (ecg) 2-day continuous with review and report by health care professional 93224

An Electrocardiogram (ECG) is a non-invasive test that records the electrical activity of your heart. In a 2-day continuous ECG, sensors attached to your chest monitor your heart's rhythm over 48 hours. A healthcare professional then reviews the data to identify any irregularities.

23 services22 patients

Heart rhythm review and interpretation of continous external ekg over 8-15 days 93248

This service involves wearing a device for 8-15 days that continuously records your heart's electrical activity. It helps in identifying irregular heart rhythms. The recorded data is then reviewed and interpreted by a healthcare professional for any abnormalities.

17 services17 patients

Ultrasound of heart during rest, exercise and/or drug-induced stress with report 93350

This procedure involves using ultrasound imaging to view your heart at rest, during exercise, and/or under drug-induced stress. It helps assess how well your heart responds to exertion. A report of the findings is provided after the test.

17 services17 patients

Insertion of tube in right and left heart chambers and coronary artery for diagnosis with review by radiologist 93460

This procedure involves placing a tube into the heart chambers and coronary artery. It helps diagnose heart conditions. A radiologist reviews the images obtained. It's a standard, safe procedure performed by experienced medical professionals.

16 services16 patients

Electrocardiogram (ecg) up to 30 days continuous with symptom monitoring 93270

An Electrocardiogram (ECG) is a test that monitors your heart's electrical activity for up to 30 days. It helps identify irregular heartbeats or rhythms. You'll wear a small device that records your heart activity, especially when symptoms like chest pain or palpitations occur.

15 services15 patients

Blood test, lipids (cholesterol and triglycerides) 80061

A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.

14 services14 patients

Liver function blood test panel 80076

A liver function blood test panel helps check the health of your liver. It measures various proteins, liver enzymes, and bilirubin in your blood. If these levels are too high or too low, it could signal a liver problem. It's a simple, non-invasive test that involves drawing blood.

14 services14 patients

Ultrasound evaluation of heart blood vessel or graft with review by radiologist, each additional vessel 92979

This procedure involves using ultrasound technology to evaluate the condition of your heart's blood vessels or graft. A radiologist reviews the images to check for any abnormalities. If additional vessels need to be examined, the process is repeated.

14 services13 patients

Ultrasound of heart blood flow, valves and chambers, follow-up 93321

This procedure, an echocardiogram, uses sound waves to create images of your heart. It aids in assessing your heart's blood flow, chambers, and valves. It's a follow-up procedure, ensuring that your heart is functioning properly post-treatment.

12 services12 patients

Insertion of tube in right heart chambers and coronary artery for diagnosis with review by radiologist 93456

This procedure involves placing a small tube into your right heart chambers and coronary artery. It helps in diagnosing heart conditions. A radiologist will review the images obtained for accurate results. It's a standard, safe process.

12 services12 patients

Hospital Affiliations CMS Care Compare 5

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

Cumberland Medical Center

Acute Care Hospitals · Crossville, TN

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440009

Location421 S Main StCrossville, TN 38555 · Cumberland County

Emergency services Birthing friendly

Starr Regional Medical Center Athens

Acute Care Hospitals · Athens, TN

4/5 CMS rating

OwnershipProprietary

CMS Certification Number440068

Location1114 W Madison AveAthens, TN 37371 · Mc Minn County

Emergency services Birthing friendly

Sweetwater Hospital Association

Acute Care Hospitals · Sweetwater, TN

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440084

Location304 Wright StSweetwater, TN 37874 · Monroe County

Emergency services Birthing friendly

Fort Loudoun Medical Center

Acute Care Hospitals · Lenoir City, TN

5/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number440110

Location550 Fort Loudon Medical Center DrLenoir City, TN 37772 · Loudon County

Emergency services

Parkwest Medical Center

Acute Care Hospitals · Knoxville, TN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440173

Location9352 Park West BlvdKnoxville, TN 37923 · Knox County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37923 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

$121.80 typical visit price

range $52.64 – $160.89

Typical copayment $30.45 (range $13.16 – $40.22)

Most-billed visit code 99204

Established Patient

$93.60 typical visit price

range $16.72 – $131.41

Typical copayment $23.40 (range $4.18 – $32.85)

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.

79.36/100

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

Individually scored

Quality

89.64

Promoting Interoperability

100

Improvement Activities

Cost

41.57

Reported Quality Measures

Controlling High Blood Pressure

70%684 patients4/55-star benchmark: 91%

e-Prescribing

97%757 patients4/55-star benchmark: 100%

Falls: Screening for Future Fall Risk

100%1,141 patients5/55-star benchmark: 100%

Heart Failure (HF): Angiotensin-Converting Enzyme (ACE) Inhibitor or Angiotensin Receptor Blocker (ARB) or Angiotensin Receptor-Neprilysin Inhibitor (ARNI) Therapy for Left Ventricular Systolic Dysfunction (LVSD)

78%60 patients4/55-star benchmark: 100%

Preventive Care and Screening: Screening for Depression and Follow-Up Plan

99%1,277 patients5/55-star benchmark: 97%

Provide Patients Electronic Access to Their Health Information

100%1,200 patients5/55-star benchmark: 100%

Statin Therapy for the Prevention and Treatment of Cardiovascular Disease

82%1,308 patients4/55-star benchmark: 91%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 0% · 1,126 patients

Patients totalRate: 0% · 1,126 patients

0%1,126 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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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.

BRENT A GRISHKIN MD

Thoracic Surgery (Cardiothoracic Vascular Surgery)

9330 PARK WEST BLVD, SUITE 108
KNOXVILLE, TN 37923

Knox County (865) 769-8635

TENNESSEE PODIATRIC CLINICS INC

Podiatrist

9330 PARK WEST BLVD, SUITE 300
KNOXVILLE, TN 37923

Knox County (865) 531-8449

DR. STEPHEN MARIETTA M.D.

Internal Medicine (Interventional Cardiology)

9330 PARK WEST BLVD, SUITE 202
KNOXVILLE, TN 37923

Knox County (865) 691-4850

OBGYN PROFESSIONALS OF ETN PC

Obstetrics & Gynecology

9330 PARK WEST BLVD, SUITE 502
KNOXVILLE, TN 37923

Knox County (865) 531-3303

GARY A SPIEGELMAN MD

Internal Medicine (Gastroenterology)

9330 PARK WEST BLVD, SUITE 307
KNOXVILLE, TN 37923

Knox County (865) 531-8632

DR. ALAN N DECARLO MD

Internal Medicine (Cardiovascular Disease)

9330 PARK WEST BLVD, SUITE 202
KNOXVILLE, TN 37923

Knox County (865) 691-4850

HAMBLEN NEUROSCIENCE CENTER, PC

Specialist

9330 PARK WEST BLVD, STE 103
KNOXVILLE, TN 37923

Knox County (423) 587-7144

PARKWEST GYNECOLOGY, P.C.

Obstetrics & Gynecology (Gynecology)

9330 PARK WEST BLVD, ST 302
KNOXVILLE, TN 37923

Knox County (865) 531-5878

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 Nicholas Xenopoulos's NPI number?

The NPI number for Nicholas Xenopoulos is 1568548006. It was assigned to this individual provider in the NPPES registry on October 27, 2006. The provider is also known as Nicholaos Peter Xenopoulos M.D..

Where is Nicholas Xenopoulos located?

Nicholas Xenopoulos practices at 9330 Park West Blvd Suite 202, Knoxville, TN 37923. The listed phone number is (865) 691-4850.

What is Nicholas Xenopoulos's specialty?

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

Is Nicholas Xenopoulos enrolled in Medicare?

Yes. Nicholas Xenopoulos 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 Nicholas Xenopoulos accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Magnolia Health, Ambetter of Alabama and Ambetter of North Carolina and 2 other insurers list Nicholas Xenopoulos 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 Nicholas Xenopoulos affiliated with any hospitals?

According to CMS data, Nicholas Xenopoulos is affiliated with Cumberland Medical Center, Starr Regional Medical Center Athens, Sweetwater Hospital Association, Fort Loudoun Medical Center and Parkwest Medical Center.

When was this NPI record last updated?

The NPPES record for Nicholas Xenopoulos was last updated on April 9, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.