DR. WENDY KAY THIESSEN M.D.
NPI 1306827035
Pediatrics in Marshalltown, IA
About Dr. Wendy Kay Thiessen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WENDY KAY THIESSEN M.D. (NPI 1306827035) is an individual pediatrics provider in Marshalltown, Iowa, licensed in Iowa (34259) and active in the NPI registry since November 2005. She is enrolled in Medicare PECOS and is a graduate of University Of Iowa, Rj & L Carver College Of Medicine (1999).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Dr. Wendy Kay Thiessen M.d. 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 Reassignment
Medicare enrollment records show Wendy Thiessen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Ames, IA 50010
- Reassigned Medicare billing, Iowa enrollment
- 331 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 50158 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MARSHALLTOWN, IA 50158
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 Wendy Thiessen's NPI number?
The NPI number for Wendy Thiessen is 1306827035. It was assigned to this individual provider in the NPPES registry on November 9, 2005. The provider is also known as Wendy Kay Schoell.
Where is Wendy Thiessen located?
Wendy Thiessen practices at 421 E Merle Hibbs Blvd, Marshalltown, IA 50158. The listed phone number is (641) 753-8616.
What is Wendy Thiessen's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Wendy Thiessen enrolled in Medicare?
Yes. Wendy Thiessen 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 organization bills Medicare for Wendy Thiessen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Wendy Thiessen reassigns Medicare benefits to Mcfarland Clinic PC (Ames, IA). The 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 Wendy Thiessen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Wendy Thiessen accept?
Health plans from Wellmark Health Plan of Iowa, Inc. list Wendy Thiessen 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.
When was this NPI record last updated?
The NPPES record for Wendy Thiessen was last updated on July 18, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.
# Dr. Wendy Kay Thiessen, M.D. · NPI 1306827035
Pediatrics physician in Marshalltown, Iowa. Individual provider, active in the CMS NPPES registry since November 9, 2005.
## Identity
- **NPI:** 1306827035 (Entity type: Individual)
- **Enumerated:** November 9, 2005
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 34259 (Iowa)
- **Sole proprietor:** No
## Practice location
- **Address:** 421 E MERLE HIBBS BLVD, Marshalltown, IA 50158-1888
- **Phone:** (641) 753-8616 · **Fax:** (641) 753-7456
## 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:** Mcfarland Clinic PC (NPI 1639135643, Ames, IA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Iowa, Rj & L Carver College Of Medicine, class of 1999
## Record status
- **NPPES last updated:** July 18, 2023
- **Other identifiers:** Medicaid 2253294 (IA)
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Source: [NPI Profile](https://npiprofile.com/npi/1306827035) · Data from the CMS NPPES public registry.