DR. CONCEPCION ESTEBAN SANTILLAN (MD) – Neurology Physician, NPI 1083647408
Neurology Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
685 NEUROLOGY in GA
Provider Addresses for DR. CONCEPCION ESTEBAN SANTILLAN (MD)
1000 Johnson Ferry Rd
Atlanta, GA 303421606
Phone: (404) 851-8000
Fax: (404) 303-3759
Type: Location
8201 E Riverside Blvd
Rockford, IL 611142300
Phone: (815) 971-7000
Type: Location
2201 HENDERSON MILL RD NE STE 160
ATLANTA, GA 303452711
Phone:
Type: Mailing
4500 MEMORIAL DR STE 400
BELLEVILLE, IL 622265360
Phone: (618) 233-3066
Fax: (314) 996-7658
Type: Location
1836, South Avenue, La Crosse, La Crosse County, Wisconsin, 54601, United States
LA CROSSE, WI 546015429
Phone: (608) 782-7300
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $24.
Total Amount is formed as General ($24) + Research ($0) + Ownership ($0) = $24.
Last reported payment date: 2023-11-09 • Largest payer in this snapshot: Horizon Therapeutics plc ($24).
Total Amount
$24
General + Research + Ownership
Payments
1
Total payment records
General Amount
$24
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-11-09
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Horizon Therapeutics plc | $24 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2025-02-04
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20200326002163 | I | Neurology | IL | TBD |
| I20220915001256 | I | Neurology | CA | TBD |
| I20250204001869 | I | Neurology | GA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 105 | 64 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 96 | 95 | $0 |
| 95816 | Measurement of brain wave activity (eeg), awake and drowsy | 65 | 59 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 28 | 23 | $0 |
| 95819 | Measurement of brain wave activity (eeg), awake and asleep | 25 | 25 | $0 |
Insurance plans in this area (ZIP 30342)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | GA | |
| Nurse Practitioner | NC | |
| Nurse Practitioner | GA | |
| Internal Medicine | GA | |
| Internal Medicine | GA | |
| Internal Medicine, Endocrinology | GA | |
| - | GA | |
| - | NV | |
| N E U R O L O G Y | TX | |
| - | GA |
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