Austin Armstrong, MD
NPI 1881251320 · Geriatric Medicine (Internal Medicine) Physician · Washington, DC
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Austin Armstrong, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Washington, DC (NPI 1881251320).
Provider details
- NPI number
- 1881251320
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD210011969 (DC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
931 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 176 | $126 |
| Residence Visit for Established Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99350 | 156 | $199 |
| Prolonged Home Or Residence Evaluation and Management Service(s) Beyond the Total Time for the Primary Service (when the Primary Service Has Been Selected Using Time on the Date of the Primary Service); Each Additional 15 Minutes By the Physician Or QualifG0318 | 106 | $33 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 101 | $184 |
| Prolonged Hospital Inpatient Or Observation Care Evaluation and Management Service(s) Beyond the Total Time for the Primary Service (when the Primary Service Has Been Selected Using Time on the Date of the Primary Service); Each Additional 15 Minutes By ThG0316 | 80 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 31 | 19 |
| Furosemide | 28 | 11 |
| Gabapentin | 25 | — |
| Apixabanbrand: Eliquis | 21 | — |
| Metoprolol Succinate | 20 | — |
| Metformin Hcl | 19 | — |
| Empagliflozinbrand: Jardiance |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-05-21
- Last updated
- 2023-07-17
- Certified
- 2023-07-17
Frequently asked questions
- What is Austin Armstrong's NPI number?
- Austin Armstrong's National Provider Identifier (NPI) is 1881251320, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Austin Armstrong's specialty?
- Austin Armstrong is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Austin Armstrong located?
- Austin Armstrong's practice location on file with NPPES is 110 Irving St Nw Ste 204, Washington, DC 20010-3017.
- What is Austin Armstrong's phone number?
- The practice phone number listed in the NPPES registry for Austin Armstrong is (202) 877-0570.
- Does Austin Armstrong accept Medicare?
- Austin Armstrong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Austin Armstrong's NPI active?
- Yes — Austin Armstrong's NPI (1881251320) is active in the NPPES registry as of the last update on 2023-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.