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DR. GREGORY VAUGHN BREWER M.D.
NPI 1285621870
Internal Medicine - Interventional Cardiology in Norton, VA

Active since September 29, 2005PECOS EnrolledAccepts Medicare Assignment
1490 PARK AVE NW STE 3C, NORTON, VA 24273(276) 679-0252 Get Directions Write a Review

NPPES record last updated: February 7, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 7, 2024, Nov 24, 2023 (2 updates tracked since 2023).

About Dr. Gregory Vaughn Brewer M.d. NPPES

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

DR. GREGORY VAUGHN BREWER M.D. (NPI 1285621870) is an individual interventional cardiology provider in Norton, Virginia, licensed in Tennessee (24411) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS, is affiliated with Wellmont Holston Valley Medical Center, and maintains 7 additional practice locations.

NPPES Registry Identity

NPI1285621870
Entity TypeIndividualMale
Primary Taxonomy207RI0011X
Provider Legal NameDR. GREGORY VAUGHN BREWERCredential: M.D.
Location Address1490 PARK AVE NW STE 3CNorton, VA 24273-1631
Mailing Address1021 W Oakland Ave Ste 310Johnson City, TN 37604-2192 · (423) 302-6565
Phone(276) 679-0252
Sole ProprietorYes
Medical School CMSOtherGraduated 1986
Enumeration DateSeptember 29, 2005
Last NPPES UpdateFebruary 7, 20242 updates tracked since enumeration
NPPES CertifiedFebruary 7, 2024
✔ NPI 1285621870 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 · 24411
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 24411 (TN)
1490 PARK AVE NW STE 3C, Norton, VA 24273
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Other Names 1

Professional Name (2)Gregory Vaughn Brewer M.d.

Secondary Practice Locations 7

Location 1378 Marketplace Blvd Ste 5Johnson City, TN 37604-2361 · Phone (423) 282-0751
Location 22050 Meadowview PkwyKingsport, TN 37660-7475 · Phone (423) 230-5000
Location 3127 Health Care Dr Ste 3Pennington Gap, VA 24277-2853 · Phone (276) 299-5000
Location 4671 Highway 58 ENorton, VA 24273-3007 · Phone (276) 679-5874
Location 5743 Island RdBristol, VA 24201-7403 · Phone (276) 469-4200
Location 62033 Meadowview Ln Ste 110Kingsport, TN 37660-7569 · Phone (423) 230-5000
Location 7314 Prosperity DriveKnoxville, TN 37923 · Phone (865) 691-8011 · Fax (865) 531-6587

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. Gregory Vaughn Brewer 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 ID2668367202
PECOS Enrollment IDI20040220000882, I20231101003848
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

2

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

Wellmont Medical Associates, Inc.
2.7 mi
Internal Medicine
601 COMMONWEALTH DR
Norton, VA 24273
  • Reassigned Medicare billing, Tennessee enrollment
  • 861 clinicians in this Medicare group
NPI 1003274994 (276) 679-6028
Wellmont Cardiology Services
30 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

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 13

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.

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.
411 services387 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.
253 services173 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.
153 services124 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.
130 services84 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.
63 services63 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.
61 services58 patients

Hospital Affiliations CMS Care Compare 5

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

Lonesome Pine Hospital

Acute Care Hospitals · Big Stone Gap, VA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490114
Location1990 Holton Avenue EastBig Stone Gap, VA 24219 · Wise County
Emergency services

Dickenson Community Hospital

Critical Access Hospitals · Clintwood, VA
OwnershipVoluntary non-profit - Private
CMS Certification Number491303
Location312 Hospital DriveClintwood, VA 24228 · Dickenson County
Emergency services

Lee County Community Hospital

Critical Access Hospitals · Pennington Gap, VA
OwnershipVoluntary non-profit - Private
CMS Certification Number491309
Location127 Health Care DrivePennington Gap, VA 24277 · Lee County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 24273 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
$129.04 typical visit price
range $56.19 – $170.30
Typical copayment $32.26 (range $14.04 – $42.57)
Most-billed visit code 99204
Established Patient
$99.13 typical visit price
range $18.07 – $138.91
Typical copayment $24.78 (range $4.51 – $34.72)
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.

Reported Quality Measures

Diabetes: Medical Attention for Nephropathy
The percentage of patients 18-75 years of age with diabetes who had a nephropathy screening test or evidence of nephropathy during the measurement period
19%53 patients1/55-star benchmark: 99%
Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
100%865 patients5/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
99%3,387 patients4/55-star benchmark: 100%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
70%3,765 patients2/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
13%897 patients1/55-star benchmark: 99%
Pneumococcal Vaccination Status for Older Adults
Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine
96%601 patients5/55-star benchmark: 90%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
100%220 patients5/55-star benchmark: 97%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user
Patients tobacco: 100% · 400 patients
100%400 patients
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
98%897 patients4/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
11%897 patients1/55-star benchmark: 59%
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.

Referred Medical Equipment & Supplies CMS DME claims

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

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
2 suppliers30 claims30 services$69.80 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

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

MACKENZIE TRENT RASNAKE NP
Nurse Practitioner (Family)
1490 PARK AVE NW STE 3C
NORTON, VA 24273
Norton City (276) 679-0252

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 Gregory Brewer's NPI number?

The NPI number for Gregory Brewer is 1285621870. It was assigned to this individual provider in the NPPES registry on September 29, 2005. The provider is also known as Gregory Vaughn Brewer M.D..

Where is Gregory Brewer located?

Gregory Brewer practices at 1490 Park Ave NW Ste 3C, Norton, VA 24273. The listed phone number is (276) 679-0252.

What is Gregory Brewer's specialty?

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

Is Gregory Brewer enrolled in Medicare?

Yes. Gregory Brewer 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 Gregory Brewer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Brewer reassigns Medicare benefits to 2 organizations: Wellmont Medical Associates, Inc. (Norton, VA) and Wellmont Cardiology Services (Kingsport, 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 Gregory Brewer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Brewer accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee and 3 other insurers list Gregory Brewer 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 Gregory Brewer affiliated with any hospitals?

According to CMS data, Gregory Brewer is affiliated with Wellmont Holston Valley Medical Center, Johnson City Medical Center, Lonesome Pine Hospital, Dickenson Community Hospital and Lee County Community Hospital.

When was this NPI record last updated?

The NPPES record for Gregory Brewer was last updated on February 7, 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.