CORYDON WALTER SIFFRING MD
NPI 1891728887
Surgery - Surgical Critical Care in Escanaba, MI
About Corydon Walter Siffring Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CORYDON WALTER SIFFRING MD (NPI 1891728887) is an individual surgical critical care provider in Escanaba, Michigan, licensed in Tennessee (41749) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Penn Highlands Dubois, and maintains 5 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 5
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Corydon Walter Siffring Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
16Medicare enrollment records show Corydon Siffring reassigns Medicare billing to 16 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
West Branch, MI 48661
- Reassigned Medicare billing, Michigan enrollment
- 250 clinicians in this Medicare group
Saginaw, MI 48604
- Reassigned Medicare billing, Michigan enrollment
- 720 clinicians in this Medicare group
Portage, IN 46368
- Reassigned Medicare billing, Indiana enrollment
- 177 clinicians in this Medicare group
Lawrenceburg, IN 47025
- Reassigned Medicare billing, Tennessee enrollment
- 394 clinicians in this Medicare group
Du Bois, PA 15801
- Reassigned Medicare billing, Pennsylvania enrollment
- 19 clinicians in this Medicare group
Carbondale, IL 62901
- Reassigned Medicare billing, Illinois enrollment
- 702 clinicians in this Medicare group
Norton, VA 24273
- Reassigned Medicare billing, Tennessee enrollment
- 861 clinicians in this Medicare group
Knoxville, TN 37932
- Reassigned Medicare billing, Tennessee enrollment
- 504 clinicians in this Medicare group
Greenwich, CT 06830
- Reassigned Medicare billing, Connecticut enrollment
- Medicare enrollment name: Northeast Medical Group Inc
- 1,824 clinicians in this Medicare group
Rapid City, SD 57702
- Reassigned Medicare billing, Oklahoma enrollment
- 6 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Penn Highlands Dubois
Acute Care Hospitals · Dubois, PARoane Medical Center
Acute Care Hospitals · Harriman, TNFort Loudoun Medical Center
Acute Care Hospitals · Lenoir City, TNOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ESCANABA, MI 49829
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Corydon Siffring's NPI number?
The NPI number for Corydon Siffring is 1891728887. It was assigned to this individual provider in the NPPES registry on July 10, 2006.
Where is Corydon Siffring located?
Corydon Siffring practices at 3401 Ludington St, Escanaba, MI 49829. The listed phone number is (906) 786-5707.
What is Corydon Siffring's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgical Critical Care, with taxonomy code 2086S0102X.
Is Corydon Siffring enrolled in Medicare?
Yes. Corydon Siffring is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Corydon Siffring's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Corydon Siffring reassigns Medicare benefits to 16 organizations: Mclaren Bay Region (West Branch, MI), Covenant Medical Center, Inc (Saginaw, MI), Porter Physician Services LLC (Portage, IN), Hospital Medicine Services Of Tennessee PC (Lawrenceburg, IN), Dubois Regional Medical Center (Du Bois, PA) and 11 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Corydon Siffring's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Corydon Siffring accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Buckeye Health Plan and Ambetter from Meridian and 7 other insurers list Corydon Siffring as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Corydon Siffring affiliated with any hospitals?
According to CMS data, Corydon Siffring is affiliated with Penn Highlands Dubois, Roane Medical Center and Fort Loudoun Medical Center.
When was this NPI record last updated?
The NPPES record for Corydon Siffring was last updated on March 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Corydon Walter Siffring, MD · NPI 1891728887
Surgical Critical Care physician in Escanaba, Michigan. Individual provider, active in the CMS NPPES registry since July 10, 2006.
## Identity
- **NPI:** 1891728887 (Entity type: Individual)
- **Enumerated:** July 10, 2006
- **Primary specialty:** Surgery - Surgical Critical Care · taxonomy 2086S0102X
- **State license:** 41749 (Tennessee)
- **Sole proprietor:** No
## Practice location
- **Address:** 3401 LUDINGTON ST, Escanaba, MI 49829-1300
- **Phone:** (906) 786-5707 · **Fax:** (217) 757-6573
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 16 organizations under Medicare reassignment (form CMS-855R): Mclaren Bay Region (NPI 1649560467, West Branch, MI); Covenant Medical Center, Inc (NPI 1881126597, Saginaw, MI); Porter Physician Services LLC (NPI 1457566309, Portage, IN); Hospital Medicine Services Of Tennessee PC (NPI 1528433802, Lawrenceburg, IN); Dubois Regional Medical Center (NPI 1508046814, Du Bois, PA); and 11 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of South Alabama College Of Medicine, class of 1986
## Record status
- **NPPES last updated:** March 2, 2026
- **Other identifiers:** Medicaid 3830576 (TN)
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Source: [NPI Profile](https://npiprofile.com/npi/1891728887) · Data from the CMS NPPES public registry.