David Armstrong, M.D.
NPI 1538280474 · Otolaryngology Physician · Chattanooga, TN
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Armstrong, M.D. is a Otolaryngology Physician provider in Chattanooga, TN (NPI 1538280474).
Provider details
- NPI number
- 1538280474
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD0000041994 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,016 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 456 | $116 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 235 | $83 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 214 | $151 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 141 | $113 |
| Ultrasound Scan of Head and Neck Soft Tissue76536 | 125 | $98 |
| Test to Assess Middle Ear Function92567 | 119 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ipratropium Bromide | 146 | 55 |
| Levothyroxine Sodium | 133 | 42 |
| Prednisone | 112 | 98 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 80 | 59 |
| Cephalexin | 73 | 68 |
| Ofloxacin | 71 | 54 |
| Mupirocin | 65 | 59 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$296 across 13 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 7480 Ziegler RdChattanooga, TN 37421-4943Phone: (423) 698-8981
Registry dates
- Enumerated
- 2007-04-02
- Last updated
- 2025-06-25
- Certified
- 2025-06-25
Frequently asked questions
- What is David Armstrong's NPI number?
- David Armstrong's National Provider Identifier (NPI) is 1538280474, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Armstrong's specialty?
- David Armstrong is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is David Armstrong located?
- David Armstrong's practice location on file with NPPES is 901 Riverfront Parkway, Chattanooga, TN 37402-2193.
- What is David Armstrong's phone number?
- The practice phone number listed in the NPPES registry for David Armstrong is (423) 698-8981.
- Does David Armstrong accept Medicare?
- David Armstrong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Armstrong's NPI active?
- Yes — David Armstrong's NPI (1538280474) is active in the NPPES registry as of the last update on 2025-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.