Michael Armstrong, MD
NPI 1679033971 · Otolaryngology Physician · Richmond, VA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Armstrong, MD is a Otolaryngology Physician provider in Richmond, VA (NPI 1679033971).
Provider details
- NPI number
- 1679033971
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101285858 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
5 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
113 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 44 | $90 |
| Diagnostic Exam of Nasal Passages Using an Endoscope31231 | 34 | $183 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 18 | $105 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 17 | $118 |
Typical Medicare-allowed amounts for these services range $90–$183 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 31 | 31 |
| Ipratropium Bromide | 15 | — |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 13 | 12 |
| Cefadroxil | 13 | 13 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (4)
- 431 Meadowmont Village CirChapel Hill, NC 27517-7506Phone: (984) 974-6484
- 11958 W Broad StHenrico, VA 23233-1007Phone: (804) 364-1007
- 1250 E Marshall StRichmond, VA 23298-5023Phone: (804) 323-0830Fax: (804) 323-8076
- 9109 Stony Point DrRichmond, VA 23235-1979Phone: (804) 323-0830Fax: (804) 323-8076
Registry dates
- Enumerated
- 2019-03-22
- Last updated
- 2025-08-25
- Certified
- 2025-08-25
Frequently asked questions
- What is Michael Armstrong's NPI number?
- Michael Armstrong's National Provider Identifier (NPI) is 1679033971, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Armstrong's specialty?
- Michael Armstrong is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Armstrong located?
- Michael Armstrong's practice location on file with NPPES is 1001 E Leigh St, Richmond, VA 23298-5004.
- What is Michael Armstrong's phone number?
- The practice phone number listed in the NPPES registry for Michael Armstrong is (804) 628-4368.
- Does Michael Armstrong accept Medicare?
- Michael Armstrong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Armstrong's NPI active?
- Yes — Michael Armstrong's NPI (1679033971) is active in the NPPES registry as of the last update on 2025-08-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.