DR. STACEY LYNN CHAMBERLAIN (M.D.) – Emergency Medicine Physician, NPI 1235331596
Emergency Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,845 EMERGENCY MEDICINE in IL
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Provider Addresses for DR. STACEY LYNN CHAMBERLAIN (M.D.)
419, North Harvey Avenue, Ridgeland, Oak Park, Cook County, Illinois, 60302, United States
OAK PARK, IL 603022336
Phone: (773) 510-4180
Type: Mailing
808, South Wood Street, Near West Side, Illinois Medical District, Chicago, Cook County, Illinois, 60608, United States
RM. 471
CHICAGO, IL 606127300
Phone: (312) 413-7480
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2007-06-19
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
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 |
|---|---|---|---|---|
| I20070619000356 | I | Emergency Medicine | IL | 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 |
|---|---|---|---|---|
| 99285 | Emergency department visit with high level of medical decision making | 98 | 85 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 59 | 55 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 57 | 52 | $0 |
| 99291 | Critical care, first 30-74 minutes | 16 | 16 | $0 |
Insurance plans in this area (ZIP 60302)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | IL | |
| O B S T E T R I C S/ G Y N E C O L O G Y | IL | |
| - | IL | |
| - | IL | |
| Gastroenterology, Internal Medicine | WI | |
| - | IL | |
| O P H T H A L M O L O G Y | NY | |
| O T O L A R Y N G O L O G Y | CA | |
| Certified Registered Nurse Anesthetist (Crna) | IA | |
| G A S T R O E N T E R O L O G Y | FL |
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