Stephen Ridley, M.D.
NPI 1508839630 · Emergency Medicine Physician · Columbia, SC
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Ridley, M.D. is a Emergency Medicine Physician provider in Columbia, SC (NPI 1508839630).
Provider details
- NPI number
- 1508839630
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 23232 (SC)
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
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
461 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 | 203 | $173 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 155 | $120 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 67 | $71 |
| Emergency Department Visit With Straightforward Medical Decision Making99282 | 25 | $41 |
| Critical Care, First 30-74 Minutes99291 | 11 | $212 |
Typical Medicare-allowed amounts for these services range $41–$212 (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.
Practice location
Mailing address
Additional practice locations (1)
- 14 Richland Medical Park Dr Ste 350Columbia, SC 29203-6896Phone: (803) 434-1663
Registry dates
- Enumerated
- 2006-02-09
- Last updated
- 2021-11-12
- Certified
- 2021-11-12
Frequently asked questions
- What is Stephen Ridley's NPI number?
- Stephen Ridley's National Provider Identifier (NPI) is 1508839630, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Ridley's specialty?
- Stephen Ridley is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Ridley located?
- Stephen Ridley's practice location on file with NPPES is Taylor at Marion, Columbia, SC 29220-0001.
- What is Stephen Ridley's phone number?
- The practice phone number listed in the NPPES registry for Stephen Ridley is (803) 296-5050.
- Does Stephen Ridley accept Medicare?
- Stephen Ridley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Ridley's NPI active?
- Yes — Stephen Ridley's NPI (1508839630) is active in the NPPES registry as of the last update on 2021-11-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.