ERIK SIEVERTSEN MD
NPI 1134137136
Emergency Medicine in Muskegon, MI
About Erik Sievertsen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ERIK SIEVERTSEN MD (NPI 1134137136) is an individual emergency medicine provider in Muskegon, Michigan, licensed in Wisconsin (86111) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Marshfield Medical Center, and maintains a secondary practice location in Stevens Point.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Erik Sievertsen 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.
Areas of Expertise CMS Part B claims 3
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Marshfield Medical Center
Acute Care Hospitals · Marshfield, WIFlambeau Hospital
Critical Access Hospitals · Park Falls, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49443 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Erik Sievertsen's NPI number?
The NPI number for Erik Sievertsen is 1134137136. It was assigned to this individual provider in the NPPES registry on August 4, 2006.
Where is Erik Sievertsen located?
Erik Sievertsen practices at 1700 Clinton St, Muskegon, MI 49443. The listed phone number is (231) 728-4601.
What is Erik Sievertsen's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Erik Sievertsen enrolled in Medicare?
Yes. Erik Sievertsen 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.
What insurance does Erik Sievertsen accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Erik Sievertsen 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 Erik Sievertsen affiliated with any hospitals?
According to CMS data, Erik Sievertsen is affiliated with Marshfield Medical Center and Flambeau Hospital.
When was this NPI record last updated?
The NPPES record for Erik Sievertsen was last updated on February 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Erik Sievertsen, MD · NPI 1134137136
Emergency Medicine physician in Muskegon, Michigan. Individual provider, active in the CMS NPPES registry since August 4, 2006.
## Identity
- **NPI:** 1134137136 (Entity type: Individual)
- **Enumerated:** August 4, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 86111 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1700 CLINTON ST, Muskegon, MI 49443
- **Phone:** (231) 728-4601
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 1991
## Record status
- **NPPES last updated:** February 5, 2026
- **Other identifiers:** Other 930103748 (MI)
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Source: [NPI Profile](https://npiprofile.com/npi/1134137136) · Data from the CMS NPPES public registry.