DR. SHAWN ALEN GREGORY MD
NPI 1154311413
Internal Medicine - Cardiovascular Disease in Nashville, TN

Q: What is Shawn Gregory's NPI number?

The NPI number for Shawn Gregory is 1154311413. It was assigned to this individual provider in the NPPES registry on October 26, 2005.

Q: What is Shawn Gregory's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for Shawn Gregory was last updated on December 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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 October 26, 2005PECOS EnrolledAccepts Medicare Assignment

97.12/100

CMS Quality Rating

3601 THE VANDERBILT CLINIC, NASHVILLE, TN 37232(615) 322-3000 Get Directions Write a Review

NPPES record last updated: December 27, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 27, 2025, Oct 15, 2020, Mar 1, 2016 and 1 more (4 updates tracked since 2016).

On this page

About Dr. Shawn Alen Gregory Md NPPES

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

DR. SHAWN ALEN GREGORY MD (NPI 1154311413) is an individual cardiovascular disease provider in Nashville, Tennessee, licensed in Tennessee (MD51913) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Tennova Healthcare-clarksville, and is a graduate of University Of Virginia School Of Medicine (1998).

NPPES Registry Identity

NPI1154311413

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameDR. SHAWN ALEN GREGORYCredential: MD

Location Address3601 THE VANDERBILT CLINICNashville, TN 37232-5100

Mailing Address3841 Green Hills Village Dr Ste 200Nashville, TN 37215-2691 · Fax (615) 322-5048

Phone(615) 322-3000

Sole ProprietorNo

Medical School CMSUniversity Of Virginia School Of MedicineGraduated 1998

Enumeration DateOctober 26, 2005

Last NPPES UpdateDecember 27, 20254 updates tracked since enumeration

NPPES CertifiedDecember 27, 2025

✔ NPI 1154311413 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

Licenses✔ Licensed in TN · MD51913✔ Licensed in MA · 216248

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

Also ListedInternal MedicineTaxonomy 207R00000X · License 216248 (MA)

3601 THE VANDERBILT CLINIC, Nashville, TN 37232

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Alliant Health Plans, Inc., Ambetter from Arkansas Health & Wellness, Ambetter Health 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. Shawn Alen Gregory 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 ID9739191958

PECOS Enrollment IDI20141103001908

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 Reassignment

Medicare enrollment records show Shawn Gregory reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Vanderbilt University Medical Center

0.1 mi

Internal Medicine

1301 22ND AVE S
Nashville, TN 37232

Reassigned Medicare billing, Tennessee enrollment
4,711 clinicians in this Medicare group

NPI 1104202761 (615) 936-2000

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.

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.

1,554 services1,326 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.

211 services211 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.

193 services151 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

74 services74 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.

57 services15 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.

50 services50 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.

49 services47 patients

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

47 services47 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.

41 services41 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.

38 services36 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.

38 services36 patients

Electrocardiogram (ecg) 2-day continuous with review by health care professional 93227

An Electrocardiogram (ECG) is a test that checks your heart's activity. The 2-day continuous ECG records your heart's rhythm non-stop for 48 hours. It helps to detect irregularities that may not occur during a shorter test. A healthcare professional will review the results to identify any issues.

34 services34 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.

33 services32 patients

Hospital Affiliations CMS Care Compare 5

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

Tennova Healthcare-Clarksville

Acute Care Hospitals · Clarksville, TN

1/5 CMS rating

OwnershipProprietary

CMS Certification Number440035

Location651 Dunlop LaneClarksville, TN 37040 · Montgomery County

Emergency services Birthing friendly

Vanderbilt University Medical Center

Acute Care Hospitals · Nashville, TN

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number440039

Location1211 Medical Center DriveNashville, TN 37232 · Davidson County

Emergency services Birthing friendly

Maury Regional Hospital

Acute Care Hospitals · Columbia, TN

3/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number440073

Location1224 Trotwood AveColumbia, TN 38401 · Maury County

Emergency services Birthing friendly

Vanderbilt Bedford Hospital

Acute Care Hospitals · Shelbyville, TN

4/5 CMS rating

OwnershipProprietary

CMS Certification Number440137

Location2835 Hwy 231 NorthShelbyville, TN 37160 · Bedford County

Emergency services

Vanderbilt Tullahoma-Harton Hospital

Acute Care Hospitals · Tullahoma, TN

3/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number440144

Location1801 N Jackson St Box 460Tullahoma, TN 37388 · Coffee County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37232 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

$66.01 typical visit price

range $16.72 – $131.41

Typical copayment $16.50 (range $4.18 – $32.85)

Most-billed visit code 99213

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.

97.12/100

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

Scored through an Alternative Payment Model

Quality

85.64

Promoting Interoperability

100

Improvement Activities

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.

DR. ENGLISH FLACK MD

Pediatrics (Pediatric Cardiology)