GUY LYNWOOD SMOAK IV MD
NPI 1649238791
Family Medicine in Oak Ridge, TN

Q: What is Guy Smoak's NPI number?

The NPI number for Guy Smoak is 1649238791. It was assigned to this individual provider in the NPPES registry on May 1, 2006.

Q: What is Guy Smoak's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Guy Smoak was last updated on October 14, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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 May 01, 2006PECOS EnrolledAccepts Medicare Assignment

1 BETHEL VALLEY RD, OAK RIDGE, TN 37830(865) 574-9355(865) 574-9353 Get Directions Write a Review

NPPES record last updated: October 14, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 11, 2024, Jun 5, 2024 (2 updates tracked since 2024).

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About Guy Lynwood Smoak Iv Md NPPES

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

GUY LYNWOOD SMOAK IV MD (NPI 1649238791) is an individual family medicine provider in Oak Ridge, Tennessee, licensed in Tennessee (18263) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Oak Ridge, and is a graduate of University Of South Carolina School Of Medicine (1986).

NPPES Registry Identity

NPI1649238791

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameGUY LYNWOOD SMOAK IVCredential: MD

Location Address1 BETHEL VALLEY RDOak Ridge, TN 37830-8050

Mailing Address1 Bethel Valley RdOak Ridge, TN 37830-8050 · (865) 574-9355 · Fax (865) 574-9353

Phone(865) 574-9355

Fax(865) 574-9353

Sole ProprietorNo

Medical School CMSUniversity Of South Carolina School Of MedicineGraduated 1986

Enumeration DateMay 1, 2006

Last NPPES UpdateOctober 14, 20242 updates tracked since enumeration

NPPES CertifiedOctober 14, 2024

✔ NPI 1649238791 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in TN · 18263

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

1 BETHEL VALLEY RD, Oak Ridge, TN 37830

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Secondary Practice Location 1

Location 1200 New York Ave Ste 150Oak Ridge, TN 37830-5227 · Phone (865) 835-5850

Other Identifiers 5

Other4104246TN · Blue Cross/blue Shield

Medicaid3030905TN

Medicaid3030906TN

MedicaidQ004773TN

OtherP00236241TN · Railroad Medicare

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

Guy Lynwood Smoak Iv 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 ID3971597899

PECOS Enrollment IDI20040413001365

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 Guy Smoak reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Medexpress Urgent Care, PC - Tennessee

Same address

General Practice

1 BETHEL VALLEY RD
Oak Ridge, TN 37830

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

NPI 1013419522 (865) 574-9355

Summit Medical Group PLLC

3.5 mi

Family Medicine

801 OAK RIDGE TURNPIKE
Oak Ridge, TN 37830

Reassigned Medicare billing, Tennessee enrollment
1,003 clinicians in this Medicare group

NPI 1437238797 (865) 483-3172

Covenant Medical Group, Inc.

5.6 mi

Family Medicine

1420 CENTERPOINT BLVD
Knoxville, TN 37932

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

NPI 1457302010 (865) 374-5200

University Health System, Inc

8.8 mi

Family Medicine

2587 WILLOW POINT WAY
Knoxville, TN 37931

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

NPI 1235182197 (865) 694-9998

Cherokee Health Systems

49 mi

Federally Qualified Health Center (FQHC)

6350 W ANDREW JOHNSON HWY
Talbott, TN 37877

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

NPI 1134128820 (423) 587-7337

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 16

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.

150 services94 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.

79 services58 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

65 services52 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

49 services39 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.

46 services45 patients

Blood test, thyroid stimulating hormone (tsh) 84443

A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.

36 services35 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.

28 services23 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

23 services23 patients

Annual depression screening, 5 to 15 minutes G0444

An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.

21 services21 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

20 services19 patients

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

19 services19 patients

Vitamin d-3 level 82306

A Vitamin D-3 level test measures the amount of Vitamin D-3, a crucial nutrient, in your body. This test helps identify if your levels are too low or too high. Low levels may lead to bone weakness, while high levels could harm your kidneys. It's a simple blood test.

18 services17 patients

Measurement c-reactive protein for detection of infection or inflammation, high sensitivity 86141

The high sensitivity C-reactive protein test is a blood test that helps detect low levels of inflammation in the body. It's often used to assess the risk of heart disease but can also indicate infection or other inflammatory conditions.

18 services17 patients

Cyanocobalamin (vitamin b-12) level 82607

A Cyanocobalamin (Vitamin B-12) level test is a blood test that checks the amount of Vitamin B-12 in your body. This vitamin is vital for nerve function and the creation of red blood cells. Low or high levels could indicate a potential health issue.

13 services12 patients

Thyroxine (thyroid chemical), free 84439

The Thyroxine (thyroid chemical), free test is a blood test that measures the level of free T4 in your body. T4 is a hormone produced by your thyroid gland and is essential for growth and metabolism. If your T4 levels are too high or too low, it could indicate a thyroid disorder.

12 services12 patients

Psa (prostate specific antigen) measurement, total 84153

PSA measurement is a simple blood test that checks for a specific protein produced by your body. High levels could indicate a health issue that needs further investigation. It's often used to monitor general wellness and is part of routine health screening.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37830 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

$81.53 typical visit price

range $52.64 – $160.89

Typical copayment $20.38 (range $13.16 – $40.22)

Most-billed visit code 99203

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.

Referred Medical Equipment & Supplies CMS DME claims 6

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

Male external catheter, with or without adhesive, disposable, each A4349

DME-Medical/Surgical Supplies · category DA000N

2 suppliers12 claims420 services$1.78 avg. paid by Medicare

Wheelchair accessory, manual swingaway, retractable or removable mounting hardware for joystick, other control interface or positioning accessory E1028

DME-Wheelchairs · category DD021N

1 supplier11 claims11 services$12.31 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

4 suppliers46 claims48 services$70.04 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

3 suppliers19 claims19 services$31.32 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

4 suppliers24 claims24 services$198.90 avg. paid by Medicare

Power wheelchair, group 2 standard, captains chair, patient weight capacity up to and including 300 pounds K0823

DME-Wheelchairs · category DD009N

1 supplier11 claims11 services$129.60 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 7

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

MEDEXPRESS URGENT CARE, PC - TENNESSEE

General Practice

1 BETHEL VALLEY RD
OAK RIDGE, TN 37830

Anderson County (865) 574-9355

JORDAN DIGIOVANNI PA-C

Physician Assistant

1 BETHEL VALLEY RD
OAK RIDGE, TN 37830

Anderson County (865) 574-9355

STACY L HALL RN, NP

Nurse Practitioner (Adult Health)

1 BETHEL VALLEY RD, ORNL, MS 6220
OAK RIDGE, TN 37830

Anderson County (865) 574-7431

SARAH KATHERINE HILL PH.D.

Psychologist (Clinical)

1 BETHEL VALLEY RD
OAK RIDGE, TN 37830

Anderson County (865) 576-7658

MRS. NANCY JOANN LEINART FNP-C

Nurse Practitioner (Family)

1 BETHEL VALLEY RD
OAK RIDGE, TN 37830

Anderson County (865) 574-7431

DR. JAMES E PHILLIPS M.D.

Clinic/Center (Corporate Health)

1 BETHEL VALLEY RD
OAK RIDGE, TN 37830

Anderson County (865) 574-7431

MS. DIANA RENEE LOWERY NP

Nurse Practitioner (Family)

1 BETHEL VALLEY RD
OAK RIDGE, TN 37830

Anderson County (865) 574-7431

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 Guy Smoak's NPI number?

The NPI number for Guy Smoak is 1649238791. It was assigned to this individual provider in the NPPES registry on May 1, 2006.

Where is Guy Smoak located?

Guy Smoak practices at 1 Bethel Valley Rd, Oak Ridge, TN 37830. The listed phone number is (865) 574-9355.

What is Guy Smoak's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Guy Smoak enrolled in Medicare?

Yes. Guy Smoak 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 organizations bill Medicare for Guy Smoak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Guy Smoak reassigns Medicare benefits to 5 organizations: Medexpress Urgent Care, PC - Tennessee (Oak Ridge, TN), Summit Medical Group PLLC (Oak Ridge, TN), Covenant Medical Group, Inc. (Knoxville, TN), University Health System, Inc (Knoxville, TN) and Cherokee Health Systems (Talbott, TN). Each 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 Guy Smoak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Guy Smoak accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee and 2 other insurers list Guy Smoak 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 Guy Smoak was last updated on October 14, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.