Dr. Shawn Alen Gregory, MD
- Medicare services, 2024
- 2,419
- Medicare patients, 2024
- 1,900
- Part D claims, 2024
- 1,319
- Publications
- 6
- Hospital affiliations
- 5
- Practice address
- 1211 Medical Center Drive, Nashville, TN 37232
- Practice phone
- Call (615) 322-3454
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gregory's professional email, personal email and mobile number
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Dr. Shawn Alen Gregory is a cardiologist in Nashville, Tennessee
Dr. Gregory practices at Vanderbilt University Medical Center in Nashville, Tennessee, part of Vanderbilt University Medical Center.
Dr. Gregory's NPI, 1154311413, was assigned on October 26, 2005. Dr. Gregory graduated from University of Virginia School of Medicine in 1998. Dr. Gregory holds Tennessee license MD51913.
- NPI
- 1154311413NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739191958
- NPI enumeration date
- October 26, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (615) 322-3454
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Shawn Alen Gregory practices at Vanderbilt University Medical Center in Nashville, Tennessee
Dr. Gregory's primary practice is Vanderbilt University Medical Center, at 1211 Medical Center Drive, Nashville, TN 37232 in Davidson County. The practice phone is (615) 322-3454.
- Vanderbilt University Medical Center1211 Medical Center Drive, Nashville, TN 37232 · Davidson CountyPhone(615) 322-3454
Source: Dmand AI Affiliation Data
Dr. Shawn Alen Gregory is affiliated with 6 sites of care and 1 medical group
Dr. Gregory's primary practice is Vanderbilt University Medical Center in Nashville, Tennessee, part of Vanderbilt University Medical Center. Dr. Gregory is also affiliated with Vanderbilt Wilson County Hospital. The medical group on file is Vanderbilt University Medical Center. Dmand AI also links Dr. Gregory to 3 more hospitals and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Shawn Alen Gregory's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gregory practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Vanderbilt University Medical Center | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Vanderbilt University Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Shawn Alen Gregory is one of 424 cardiologists in Tennessee
Cardiovascular disease is Dr. Gregory's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Gregory is board certified in cardiovascular disease by the American Board of Internal Medicine. Dmand AI has Dr. Gregory's licenses on file in 2 states: Tennessee and Massachusetts.
Specialties and state licenses
- Cardiovascular disease, TennesseePrimary
- Internal medicine, Massachusetts
Cardiologists near Dr. Gregory
Counts of cardiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Shawn Alen Gregory billed Medicare for 2,419 services in 2024
CMS data shows 2,419 Medicare services from Dr. Gregory across 11 procedure codes in 2024, for 1,900 Medicare patients. Medicare paid $42,778 for them.
Dr. Gregory's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2,0132024: 2,1286%
- Office and hospital visits
- 2023: 2892024: 25013%
- Imaging
- 2023: 652024: 4137%
Where Dr. Gregory's Medicare services took place, 2024
- In an office1546%
- In a facility2,26594%
Dr. Gregory compared with the Tennessee median for cardiologists, 2024
- Dr. Gregory
- Tennessee median
- Medicare services
- 2,419vs 1,79035% above
- Medicare patients
- 1,900vs 8662.2 times
- Part D claims
- 1,067vs 1,79841% below
Medians across 428 cardiologists in Tennessee with Dmand AI profiles that report each measure.
Dr. Gregory's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Shawn Alen Gregory treated 1,900 Medicare patients in 2024, average age 73
CMS counts 1,900 Medicare patients who saw Dr. Gregory in 2024. The largest group is 65 to 74, with 766 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 2.14, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Gregory's median patient age at 69, with 48% women.
Dr. Gregory's Medicare patients by age, 2024
Dr. Gregory's Medicare patients by sex, 2024
- Women92549%
- Men97551%
Chronic conditions among Dr. Gregory's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease54%
- Arthritis52%
- Chronic kidney disease45%
- Atrial fibrillation44%
- Heart failure44%
- Diabetes42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gregory's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Shawn Alen Gregory wrote 1,319 Medicare Part D claims in 2024
In 2024, Dr. Gregory wrote 1,319 Medicare Part D claims for 171 patients. 89% of them were for generic drugs. CMS names the drug for 1,067 of them, across 29 drugs with 11 or more claims each, at $103,746 in total drug cost. In 2023, CMS named 1,202 claims across 27 drugs.
Dr. Gregory's Part D claims by kind of drug, 2024
- Generic1,175 claims89%
- Brand-name144 claims11%
Dr. Gregory's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Gregory's Part D claims, 2024
- Antibiotics1%17 of 1,319 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,2022024: 1,06711%
Drugs named by CMS: 29 in 2024, 27 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Shawn Alen Gregory takes part in Medicare
Dr. Gregory accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Shawn Alen Gregory has 6 publications on record
Dmand AI links 6 papers to Dr. Gregory, published from 2011 to 2014. 2011 was the busiest year, with 2. The most frequent topics are Heart Failure, Natriuretic Peptide, Brain and Peptide Fragments. Dr. Gregory's most frequent co-authors are Anju Bhardwaj, MD, James Louis Januzzi, MD and Rory Brett Weiner, MD.
Dr. Gregory's papers by year, 2011 to 2014
Topics Dr. Gregory writes about most
- Heart Failure
- Natriuretic Peptide, Brain
- Peptide Fragments
Dr. Gregory's most frequent co-authors
- Anju Bhardwaj, MD3 shared papers
- James Louis Januzzi, MD3 shared papers
- Rory Brett Weiner, MD3 shared papers
Recent publications by Dr. Gregory
Int J Cardiol
See who Dr. Gregory researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gregory works with, so you can find a warm path to the right cardiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Shawn Alen Gregory received $119 in industry payments from 2016 to 2019
CMS Open Payments shows 7 general payments to Dr. Gregory from 4 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $50.
General payments to Dr. Gregory by program year, 2016 to 2019
Companies that paid Dr. Gregory the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Shawn Alen Gregory graduated from University of Virginia School of Medicine
Dr. Gregory graduated from University of Virginia School of Medicine in 1998.
- Medical school
- Board certified in cardiovascular disease
Source: Dmand AI Professional Profile Data
Sources for Dr. Shawn Alen Gregory's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Shawn Alen Gregory
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Shawn Alen Gregory's NPI number?
Dr. Shawn Alen Gregory's NPI number is 1154311413. It was assigned on October 26, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Shawn Alen Gregory?
Dr. Shawn Alen Gregory is a cardiologist in Nashville, Tennessee. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Shawn Alen Gregory practice?
Dr. Gregory practices at 1211 Medical Center Drive, Nashville, TN 37232. Dr. Gregory's primary practice is Vanderbilt University Medical Center in Nashville, Tennessee, part of Vanderbilt University Medical Center. Dmand AI also links Dr. Gregory to 3 hospitals and 1 group practice or clinic.
What is Dr. Shawn Alen Gregory's office phone number?
The practice phone on file for Dr. Gregory is (615) 322-3454.
What is Dr. Shawn Alen Gregory's medical license number?
Dr. Gregory holds Tennessee license MD51913, one of the licenses on file in 2 states.
Which states has Dr. Shawn Alen Gregory been licensed in?
Dmand AI has state licenses on file for Dr. Gregory in Tennessee and Massachusetts.
Which hospitals is Dr. Shawn Alen Gregory affiliated with?
Dr. Gregory practices at Vanderbilt University Medical Center in Nashville, Tennessee. Dr. Gregory is also affiliated with Vanderbilt Wilson County Hospital. Dmand AI links Dr. Gregory to 3 more hospitals.
What medical group is Dr. Shawn Alen Gregory part of?
Dr. Gregory is linked to Vanderbilt University Medical Center.
Does Dr. Shawn Alen Gregory accept Medicare?
Yes. CMS data shows Dr. Gregory billed Medicare for 2,419 services in 2024, and Dr. Gregory accepts Medicare assignment.
How many Medicare patients does Dr. Shawn Alen Gregory see?
CMS counts 1,900 Medicare patients who saw Dr. Gregory in 2024, with an average age of 73.
Show 8 more questionsShow fewer questions
Is Dr. Shawn Alen Gregory board certified?
Yes. Dr. Gregory is board certified in cardiovascular disease by the American Board of Internal Medicine.
What services does Dr. Shawn Alen Gregory bill to Medicare?
In 2024, Dr. Gregory's most billed Medicare services were heart test or procedure (93010), heart test or procedure (93306) and office visit, established patient (99214).
Where did Dr. Shawn Alen Gregory go to medical school?
Dr. Gregory graduated from University of Virginia School of Medicine in 1998.
What drugs does Dr. Shawn Alen Gregory prescribe most?
In 2024 Medicare Part D data, Dr. Gregory's most prescribed drugs by claims were Rosuvastatin Calcium, Metoprolol Succinate and Atorvastatin Calcium.
Has Dr. Shawn Alen Gregory received payments from drug or device companies?
CMS Open Payments shows $119 in general payments to Dr. Gregory from 4 companies from 2016 to 2019. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Shawn Alen Gregory been practicing?
Dr. Gregory graduated from medical school in 1998, 28 years ago.
Does Dr. Shawn Alen Gregory do research?
Dmand AI links 6 publications to Dr. Gregory, published from 2011 to 2014.
Who does Dr. Shawn Alen Gregory publish with?
Dr. Gregory's most frequent co-authors are Anju Bhardwaj, MD (3 shared papers), James Louis Januzzi, MD (3 shared papers) and Rory Brett Weiner, MD (3 shared papers).
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