Dr. Juan Carlos Armstrong Jr., MD
- Part D claims, 2024
- 274
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2023
- Practice address
- 719 Thompson Ln Ste 30330 Suite 30330, Nashville, TN 37204
- Practice phone
- Call (615) 322-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Vanderbilt Medical Group
Multi-specialty group site · Nashville, Tennessee
Find Dr. Armstrong's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Juan Carlos Armstrong Jr. is an internist in Nashville, Tennessee
Dr. Armstrong practices at Vanderbilt Medical Group in Nashville, Tennessee.
Dr. Armstrong's NPI, 1427744606, was assigned on April 12, 2023. Dr. Armstrong holds Tennessee license 73004.
- NPI
- 1427744606NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658735105
- NPI enumeration date
- April 12, 2023
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (615) 322-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Juan Carlos Armstrong Jr. practices at 2 locations in Nashville, Tennessee
Dr. Armstrong's primary practice is Vanderbilt Medical Group, at 719 Thompson Ln Ste 30330 Suite 30330, Nashville, TN 37204. The practice phone is (615) 322-3000. The NPI Registry lists Dr. Armstrong's practice address as 624 Grassmere Park, Nashville, TN 37211.
- Vanderbilt Medical GroupPrimary719 Thompson Ln Ste 30330 Suite 30330, Nashville, TN 37204Phone(615) 322-3000
- NPI Registry address624 Grassmere Park, Nashville, TN 37211 · Davidson County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Juan Carlos Armstrong Jr. is affiliated with 1 site of care and 1 medical group
Dr. Armstrong's primary practice is Vanderbilt Medical Group in Nashville, Tennessee. The medical group on file is Vanderbilt University Medical Center.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Juan Carlos Armstrong Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Armstrong practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Vanderbilt Medical Group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Juan Carlos Armstrong Jr. is one of 2,427 internists in Tennessee
Internal medicine is Dr. Armstrong's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Armstrong is licensed in Tennessee.
Specialties and state licenses
- Internal medicine, TennesseePrimary
Internists near Dr. Armstrong
Counts of internists 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. Juan Carlos Armstrong Jr.'s patients have a median age of 39
Across all payers, Dmand AI patient panel data puts Dr. Armstrong's median patient age at 39, with 50% women.
Dr. Armstrong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 39
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Juan Carlos Armstrong Jr. wrote 274 Medicare Part D claims in 2024
In 2024, Dr. Armstrong wrote 274 Medicare Part D claims for 47 patients. 89% of them were for generic drugs.
Dr. Armstrong's Part D claims by kind of drug, 2024
- Generic245 claims89%
- Brand-name29 claims11%
Drug classes CMS tracks in Dr. Armstrong's Part D claims, 2024
- Antibiotics8%22 of 274 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Juan Carlos Armstrong Jr. takes part in Medicare
Dr. Armstrong 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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Sources for Dr. Juan Carlos Armstrong Jr.'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | 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) |
| 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. Juan Carlos Armstrong Jr.
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. Juan Carlos Armstrong Jr.'s NPI number?
Dr. Juan Carlos Armstrong Jr.'s NPI number is 1427744606. It was assigned on April 12, 2023, and it is active in the NPI Registry.
What kind of doctor is Dr. Juan Carlos Armstrong Jr.?
Dr. Juan Carlos Armstrong Jr. is an internist in Nashville, Tennessee. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Juan Carlos Armstrong Jr. practice?
Dr. Armstrong practices at 719 Thompson Ln Ste 30330 Suite 30330, Nashville, TN 37204. Dr. Armstrong also practices at 624 Grassmere Park, Nashville, TN 37211. Dr. Armstrong's primary practice is Vanderbilt Medical Group in Nashville, Tennessee.
What is Dr. Juan Carlos Armstrong Jr.'s office phone number?
The practice phone on file for Dr. Armstrong is (615) 322-3000.
What is Dr. Juan Carlos Armstrong Jr.'s medical license number?
Dr. Armstrong holds Tennessee license 73004, one of 2 state licenses on file.
What medical group is Dr. Juan Carlos Armstrong Jr. part of?
Dr. Armstrong is linked to Vanderbilt University Medical Center.
Does Dr. Juan Carlos Armstrong Jr. accept Medicare?
Yes. CMS lists Dr. Armstrong as accepting Medicare assignment.
How long has Dr. Juan Carlos Armstrong Jr. been practicing?
Dr. Armstrong's NPI was assigned in 2023.
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