Stephen Lyon, D.O.
NPI 1205180387 · Emergency Medicine Physician · Portsmouth, OH
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Lyon, D.O. is a Emergency Medicine Physician provider in Portsmouth, OH (NPI 1205180387).
Provider details
- NPI number
- 1205180387
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 58004665 (OH)
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
13 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
703 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 330 | $167 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 227 | $116 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 70 | $68 |
| Critical Care, First 30-74 Minutes99291 | 44 | $203 |
| Emergency Department Visit With Straightforward Medical Decision Making99282 | 21 | $40 |
| Emergent Insertion of Breathing Tube Into Windpipe Using an Endoscope31500 | 11 | $134 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 85 | 84 |
| Doxycycline Hyclate | 42 | 42 |
| Prednisone | 37 | 37 |
| Ondansetron Hcl | 33 | 32 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 31 | 31 |
| Cyclobenzaprine Hcl | 25 | 25 |
| Dexamethasone | 23 | 23 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-10-29
- Last updated
- 2012-10-29
Frequently asked questions
- What is Stephen Lyon's NPI number?
- Stephen Lyon's National Provider Identifier (NPI) is 1205180387, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Lyon's specialty?
- Stephen Lyon is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Lyon located?
- Stephen Lyon's practice location on file with NPPES is 1805 27th St, Portsmouth, OH 45662-2640.
- What is Stephen Lyon's phone number?
- The practice phone number listed in the NPPES registry for Stephen Lyon is (740) 356-5000.
- Does Stephen Lyon accept Medicare?
- Stephen Lyon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Lyon's NPI active?
- Yes — Stephen Lyon's NPI (1205180387) is active in the NPPES registry as of the last update on 2012-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.