CORYDON WALTER SIFFRING (MD) – Surgical Critical Care Physician, NPI 1891728887
Surgical Critical Care Physician
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NPPES metrics only — not quality of care.
1,422 GENERAL SURGERY in IL
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Provider Addresses for CORYDON WALTER SIFFRING (MD)
1025, South 6th Street, South Town, Springfield, Sangamon County, Illinois, 62703, United States
SPRINGFIELD, IL 627032403
Phone: (217) 528-7541
Type: Mailing
HSHS Saint John's Hospital, 800, East Carpenter Street, Springfield, Sangamon County, Illinois, 62769, United States
SPRINGFIELD, IL 627025324
Phone: (217) 757-6570
Fax: (217) 757-6573
Type: Location
689 Medical Park Dr Ste 101
Lenoir City, TN 377725796
Phone: (865) 271-6580
Fax: (865) 374-1147
Type: Location
267 Grant St
Bridgeport, CT 066102805
Phone: (203) 384-3000
Type: Location
999 N Curtis Rd Ste 415
Boise, ID 837061334
Phone: (208) 302-2600
Fax: (208) 302-2625
Type: Location
305 W Jackson St Ste 206
Carbondale, IL 629011474
Phone: (618) 457-3006
Type: Location
220 S Park Ave Fl 3
Herrin, IL 629483602
Phone: (618) 942-2002
Type: Location
971 DUTTON RD
ROCHESTER HILLS, MI 483062513
Phone: (423) 863-6938
Type: Mailing
3401 LUDINGTON ST
ESCANABA, MI 498291300
Phone: (906) 786-5707
Fax: (217) 757-6573
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: 2025-05-20
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 10 Medicare enrollment records; no due dates published yet.
Enrollment records
10
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 |
|---|---|---|---|---|
| I20070313000136 | I | General Surgery | TN | TBD |
| I20170202000880 | I | General Surgery | PA | TBD |
| I20171116001992 | I | Critical Care (Intensivists) | IL | TBD |
| I20211014002744 | I | Critical Care (Intensivists) | GA | TBD |
| I20230103002152 | I | Critical Care (Intensivists) | AZ | TBD |
| I20230412002342 | I | Critical Care (Intensivists) | NJ | TBD |
| I20230616001035 | I | Critical Care (Intensivists) | CT | TBD |
| I20230714003286 | I | General Surgery | MI | TBD |
| I20231004003734 | I | General Surgery | OK | TBD |
| I20250520004277 | I | General Surgery | IN | 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 |
|---|---|---|---|---|
| 99291 | Critical care, first 30-74 minutes | 38 | 18 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 27 | 18 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 22 | 22 | $0 |
Insurance plans in this area (ZIP 62703)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GENERAL SURGERY | IL | 36556 | Insertion of central venous catheter for infusion, patient 5 years or older | 24 | 23 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | PA | |
| - | PA | |
| - | PA | |
| - | PA | |
| Internal Medicine | MD | |
| Nurse Practitioner | PA | |
| - | PA | |
| Diagnostic Radiology | TX | |
| Physician Assistant | PA | |
| Internal Medicine | PA |
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