Williamson County Ambulance Service, Inc
NPI 1255428140 · Land Ambulance · Marion, IL
Enrolled with Medicare as Part B Supplier - Ambulance Service Supplier · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Williamson County Ambulance Service, Inc is a Land Ambulance organization in Marion, IL (NPI 1255428140).
Provider details
- NPI number
- 1255428140
- Entity type
- Organization
- Primary specialty
- Land AmbulanceTransportation Services
- Organization subpart
- No
- Authorized official
- Ricky Colyer, President(618) 922-8670
Specialties & taxonomies
Transportation Services
- Ambulance341600000X
Transportation Services
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
2,173.8 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) |
|---|---|---|
| Ground Mileage, Per Statute MileA0425 | 2,039 | $11 |
| Ambulance Service, Advanced Life Support, Emergency Transport, Level 1 (als 1 - Emergency)A0427 | 135 | $556 |
Typical Medicare-allowed amounts for these services range $11–$556 (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
Registry dates
- Enumerated
- 2006-10-10
- Last updated
- 2019-07-29
Frequently asked questions
- What is Williamson County Ambulance Service, Inc's NPI number?
- Williamson County Ambulance Service, Inc's National Provider Identifier (NPI) is 1255428140, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Williamson County Ambulance Service, Inc?
- Williamson County Ambulance Service, Inc is classified in the NPPES registry as Land Ambulance (Transportation Services).
- Where is Williamson County Ambulance Service, Inc located?
- Williamson County Ambulance Service, Inc's practice location on file with NPPES is 808 E Deyoung St, Marion, IL 62959-3333.
- What is Williamson County Ambulance Service, Inc's phone number?
- The practice phone number listed in the NPPES registry for Williamson County Ambulance Service, Inc is (618) 997-4915.
- Does Williamson County Ambulance Service, Inc accept Medicare?
- Williamson County Ambulance Service, Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Williamson County Ambulance Service, Inc?
- The authorized official listed on Williamson County Ambulance Service, Inc's NPPES record is Ricky Colyer, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Williamson County Ambulance Service, Inc's NPI active?
- Yes — Williamson County Ambulance Service, Inc's NPI (1255428140) is active in the NPPES registry as of the last update on 2019-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.