Concepcion Santillan, MD
NPI 1083647408 · Neurology Physician · Belleville, IL
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Concepcion Santillan, MD is a Neurology Physician provider in Belleville, IL (NPI 1083647408).
Provider details
- NPI number
- 1083647408
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 036151944 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
61 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 26 | $170 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 20 | $73 |
| Measurement of Brain Wave Activity (eeg), Awake and Drowsy95816 | 15 | $54 |
Typical Medicare-allowed amounts for these services range $54–$170 (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 (2)
- 1000 Johnson Ferry RdAtlanta, GA 30342-1606Phone: (404) 851-8000Fax: (404) 303-3759
- 8201 E Riverside BlvdRockford, IL 61114-2300Phone: (815) 971-7000
Registry dates
- Enumerated
- 2006-07-09
- Last updated
- 2025-09-30
- Certified
- 2025-09-30
Frequently asked questions
- What is Concepcion Santillan's NPI number?
- Concepcion Santillan's National Provider Identifier (NPI) is 1083647408, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Concepcion Santillan's specialty?
- Concepcion Santillan is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Concepcion Santillan located?
- Concepcion Santillan's practice location on file with NPPES is 4500 Memorial Dr Ste 400, Belleville, IL 62226-5360.
- What is Concepcion Santillan's phone number?
- The practice phone number listed in the NPPES registry for Concepcion Santillan is (618) 233-3066.
- Does Concepcion Santillan accept Medicare?
- Concepcion Santillan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Concepcion Santillan's NPI active?
- Yes — Concepcion Santillan's NPI (1083647408) is active in the NPPES registry as of the last update on 2025-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.