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

DR. NATHAN EDWARD GARGUS M.D.
NPI 1285928358
Internal Medicine in Bristol, TN

Q: What is Nathan Gargus's NPI number?

The NPI number for Nathan Gargus is 1285928358. It was assigned to this individual provider in the NPPES registry on June 6, 2011.

Q: What is Nathan Gargus's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Nathan Gargus was last updated on September 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 56 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.

Active since June 06, 2011PECOS EnrolledAccepts Medicare Assignment

271 MEDICAL PARK BLVD, BRISTOL, TN 37620(423) 274-8600(423) 390-6845 Get Directions Write a Review

NPPES record last updated: September 2, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Nathan Edward Gargus M.d. NPPES

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

DR. NATHAN EDWARD GARGUS M.D. (NPI 1285928358) is an individual internal medicine provider in Bristol, Tennessee, licensed in Pennsylvania (MT199612) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS, is affiliated with Wellmont Bristol Regional Medical Center, and maintains 5 additional practice locations.

NPPES Registry Identity

NPI1285928358

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. NATHAN EDWARD GARGUSCredential: M.D.

Location Address271 MEDICAL PARK BLVDBristol, TN 37620-7455

Mailing Address1021 W Oakland Ave Ste 310Johnson City, TN 37604-2192 · (423) 952-2111

Phone(423) 274-8600

Fax(423) 390-6845

Sole ProprietorNo

Medical School CMSOtherGraduated 2011

Enumeration DateJune 6, 2011

Last NPPES UpdateSeptember 2, 2026

NPPES CertifiedSeptember 2, 2026

✔ NPI 1285928358 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Licenses✔ Licensed in PA · MT199612✔ Licensed in TN · 67893✔ Licensed in VA · 0101278336

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 67893 (TN), 0101278336 (VA)

Also ListedInternal Medicine · Interventional CardiologyTaxonomy 207RI0011X · License 67893 (TN), 0101278336 (VA)

271 MEDICAL PARK BLVD, Bristol, TN 37620

Open in Google Maps ↗

Secondary Practice Locations 5

Location 116000 Johnston Memorial Dr Ste 212Abingdon, VA 24211-7664 · Phone (276) 258-3740

Location 2100 East Lancaster Avenue, Lankenau Hospital, Internal Medicine Dept.Wynnewood, PA 19096 · Phone (484) 476-3988

Location 3245 Medical Park Dr Ste AMarion, VA 24354-1100 · Phone (276) 378-1000

Location 41490 Park Ave NW Ste 3CNorton, VA 24273-1631 · Phone (276) 679-0252

Location 52050 Meadowview PkwyKingsport, TN 37660-7475 · Phone (423) 230-5000

Other Identifiers 2

OtherMT199612PA · Graduate Medical Trainee License Number

OtherHS000121LPA · Lankenau Hospital Training License Number

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter Health, Ambetter of Alabama 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. Nathan Edward Gargus 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 ID1557656865

PECOS Enrollment IDI20230706001651, I20230711000153

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 Reassignments

Medicare enrollment records show Nathan Gargus reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Wellmont Cardiology Services

19 mi

Cardiovascular Disease

2050 MEADOWVIEW PARKWAY
Kingsport, TN 37660

Reassigned Medicare billing, Tennessee and Virginia enrollments
124 clinicians in this Medicare group

NPI 1376575035 (423) 230-5000

Blount Memorial Physician Group, Inc

112 mi

Family Medicine

266 JOULE ST
Alcoa, TN 37701

Reassigned Medicare billing, Tennessee enrollment
295 clinicians in this Medicare group

NPI 1699710194 (865) 984-3864

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 25

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 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.

191 services170 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.

116 services116 patients

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.

79 services70 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.

70 services39 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.

66 services54 patients

Ultrasound study of one arm or leg veins with compression and maneuvers 93971

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

62 services60 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.

61 services57 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

53 services41 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician 93016

An exercise or drug-induced heart stress test with ECG involves monitoring your heart's activity while it's under stress, either from exercise or medication. A doctor supervises the entire procedure to ensure safety and accuracy in results. This test helps detect heart problems.

51 services51 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.

51 services51 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.

51 services51 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.

50 services50 patients

Complete ultrasound study of arm and leg arteries 93923

This procedure involves using sound waves to produce images of your arm and leg arteries. It helps identify blockages or abnormalities that could lead to conditions like stroke or peripheral artery disease. It's non-invasive and painless.

49 services49 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.

42 services40 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.

41 services41 patients

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

40 services40 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.

40 services40 patients

Ultrasound evaluation of heart blood vessel during diagnosis or treatment, initial vessel 93571

This procedure involves using ultrasound technology to examine the first blood vessel of your heart. It helps identify any abnormalities or issues, providing crucial information for diagnosis or treatment. It's a safe, non-invasive process.

34 services32 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.

27 services24 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.

25 services25 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.

24 services21 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

23 services23 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.

20 services18 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.

14 services14 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.

14 services13 patients

Hospital Affiliations CMS Care Compare 5

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

Wellmont Bristol Regional Medical Center

Acute Care Hospitals · Bristol, TN

1/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number440012

LocationOne Medical Park BlvdBristol, TN 37620 · Sullivan County

Emergency services Birthing friendly

Wellmont Holston Valley Medical Center

Acute Care Hospitals · Kingsport, TN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440017

Location130 West Ravine RoadKingsport, TN 37662 · Sullivan County

Emergency services

Indian Path Community Hospital

Acute Care Hospitals · Kingsport, TN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440176

Location2000 Brookside DrKingsport, TN 37660 · Sullivan County

Emergency services Birthing friendly

Smyth County Community Hospital

Acute Care Hospitals · Marion, VA

OwnershipVoluntary non-profit - Private

CMS Certification Number490038

Location245 Medical Park DriveMarion, VA 24354 · Smyth County

Emergency services

Johnston Memorial Hospital

Acute Care Hospitals · Abingdon, VA

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490053

Location16000 Johnston Memorial DriveAbingdon, VA 24211 · Washington County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37620 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.

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.

MRS. KELLY CARTER SIMCOX FNP-BC

Nurse Practitioner (Family)