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

NATHANIEL A GREENE DO
NPI 1508420704
Family Medicine in Kingsport, TN

Q: What is Nathaniel Greene's NPI number?

The NPI number for Nathaniel Greene is 1508420704. It was assigned to this individual provider in the NPPES registry on April 24, 2019.

Q: What is Nathaniel Greene'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 Nathaniel Greene was last updated on July 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 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 April 24, 2019PECOS EnrolledAccepts Medicare Assignment

444 CLINCHFIELD ST STE 2700, KINGSPORT, TN 37660(423) 230-2700(423) 239-7402 Get Directions Write a Review

NPPES record last updated: July 9, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 9, 2026, Feb 18, 2025, Jul 12, 2022 and 1 more (4 updates tracked since 2019).

On this page

About Nathaniel A Greene Do NPPES

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

NATHANIEL A GREENE DO (NPI 1508420704) is an individual family medicine provider in Kingsport, Tennessee, licensed in Tennessee (4547) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Wellmont Holston Valley Medical Center, and maintains a secondary practice location in Knoxville.

NPPES Registry Identity

NPI1508420704

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameNATHANIEL A GREENECredential: DO

Location Address444 CLINCHFIELD ST STE 2700Kingsport, TN 37660-3858

Mailing AddressPo Box 632476Cincinnati, OH 45263-2476 · (423) 230-2700 · Fax (423) 239-7402

Phone(423) 230-2700

Fax(423) 239-7402

Sole ProprietorNo

Medical School CMSLincoln Memorial University Medical DepartmentGraduated 2019

Enumeration DateApril 24, 2019

Last NPPES UpdateJuly 9, 20264 updates tracked since enumeration

NPPES CertifiedJuly 9, 2026

✔ NPI 1508420704 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 · 4547

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.

444 CLINCHFIELD ST STE 2700, Kingsport, TN 37660

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Secondary Practice Location 1

Location 19333 Park West Blvd Ste 200Knoxville, TN 37923-4317 · Phone (865) 531-4600 · Fax (833) 908-2096

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BlueCross BlueShield of Tennessee, UnitedHealthcare.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

Nathaniel A Greene Do 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 ID2961735055

PECOS Enrollment IDI20220718001437

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 22

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.

210 services78 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.

139 services63 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.

108 services60 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.

107 services59 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.

78 services54 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.

74 services53 patients

Urine microalbumin (protein) level 82043

The urine microalbumin level test measures the amount of a protein called albumin in your urine. This test helps to detect early signs of kidney damage. High levels of albumin may suggest your kidneys aren't functioning properly. It's a simple, non-invasive test that involves providing a urine sample.

62 services42 patients

Creatinine level to test for kidney function or muscle injury 82570

A creatinine level test measures the amount of creatinine in your blood. This substance is a waste product from normal muscle use. Higher levels can indicate possible kidney dysfunction or muscle injury. This test helps monitor kidney health.

62 services43 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.

58 services37 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.

49 services49 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.

34 services26 patients

Manual urinalysis test with examination using microscope, automated 81001

A manual urinalysis test with automated microscopic examination is a lab process that checks your urine for health indicators. It involves a machine scanning your sample to identify any abnormal elements, which can assist in diagnosing various conditions.

30 services22 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.

21 services16 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.

19 services14 patients

Ferritin (blood protein) level 82728

A Ferritin level test measures the amount of ferritin, a protein that stores iron, in your blood. It helps determine how much iron your body is storing. If levels are low, it may indicate iron deficiency, while high levels could signify conditions like iron overload.

19 services11 patients

Iron level 83540

An iron level test measures the amount of iron in your blood. Iron is crucial for producing hemoglobin, a protein in red blood cells that carries oxygen throughout your body. This test helps identify iron deficiencies or excesses, which can lead to conditions like anemia or hemochromatosis.

19 services11 patients

Iron binding capacity 83550

Iron binding capacity is a blood test that measures how well your body can bind and transport iron. This helps your healthcare provider assess if your body has too little or too much iron, which can indicate certain health conditions.

19 services11 patients

Prostate cancer screening; prostate specific antigen test (psa) G0103

Prostate cancer screening involves a simple blood test known as the Prostate Specific Antigen (PSA) test. This test measures the level of PSA in your blood. Higher than normal levels can be an early indication of prostate issues, including cancer. It's a key tool in early detection.

18 services18 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.

16 services13 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.

15 services14 patients

Influenza vaccine split virus, preservative free 90662

The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.

14 services14 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

14 services14 patients

Hospital Affiliations CMS Care Compare 3

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

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

Johnson City Medical Center

Acute Care Hospitals · Johnson City, TN

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440063

Location400 N State Of Franklin RdJohnson City, TN 37604 · Washington County

Emergency services Birthing friendly

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37660 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.

Other Providers at the Same Location NPPES 4

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

DR. AARON K METCALF D.O.

Family Medicine

444 CLINCHFIELD ST STE 2700
KINGSPORT, TN 37660

Sullivan County (423) 230-2700

JOSHUA OWENS NP

Nurse Practitioner (Family)

444 CLINCHFIELD ST STE 2700
KINGSPORT, TN 37660

Sullivan County (423) 230-2700

MICHAEL P KAUZLARICH D.O.

Family Medicine

444 CLINCHFIELD ST STE 2700
KINGSPORT, TN 37660

Sullivan County (423) 230-2700

SARAH JEFFERS NP

Nurse Practitioner (Family)

444 CLINCHFIELD ST STE 2700
KINGSPORT, TN 37660

Sullivan County (423) 230-2700

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 Nathaniel Greene's NPI number?

The NPI number for Nathaniel Greene is 1508420704. It was assigned to this individual provider in the NPPES registry on April 24, 2019.

Where is Nathaniel Greene located?

Nathaniel Greene practices at 444 Clinchfield St Ste 2700, Kingsport, TN 37660. The listed phone number is (423) 230-2700.

What is Nathaniel Greene's specialty?

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

Is Nathaniel Greene enrolled in Medicare?

Yes. Nathaniel Greene 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 Nathaniel Greene accept?

Health plans from BlueCross BlueShield of Tennessee and UnitedHealthcare list Nathaniel Greene 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 Nathaniel Greene affiliated with any hospitals?

According to CMS data, Nathaniel Greene is affiliated with Wellmont Holston Valley Medical Center, Johnson City Medical Center and Indian Path Community Hospital.

When was this NPI record last updated?

The NPPES record for Nathaniel Greene was last updated on July 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 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.