DR. WENDY KAY THIESSEN (M.D.) – Pediatrics Physician, NPI 1306827035

DR. WENDY KAY THIESSEN (M.D.) is a healthcare provider. based in Marshalltown, Iowa. specializing in PEDIATRIC MEDICINE. They hold the professional credentials M.D.. They hold a License No. 34259 (IA). The NPI Number for DR. WENDY KAY THIESSEN (M.D.) is 1306827035

Main info

Female
27 Years Of Experience
Accepts Medicare Assignment
Name
DR. WENDY KAY THIESSEN (M.D.)
NPI
1306827035
Phone
(641) 753-8616
Address
312 E MAIN ST
Enumeration Date
9 November 2005
Last Update Date
18 July 2023

Doctor Profile

Medical School Name
UNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Secondary Phone
6417520654
Graduation Year
1999 (27 years ago)
PAC ID
1254420672
Group Practice PAC ID
1254244239
Professional Enrollment ID
I20071207000363
Address ID
IA501581992MA421XXBLVD500

Contacts

Secure Messaging
wthiessen309@directmcfarlandclinic.com
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness85
Years active:20State licenses:1Other namesUpdated within 12 months

268 PEDIATRIC MEDICINE in IA

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Provider Addresses for DR. WENDY KAY THIESSEN (M.D.)

  • Iowa Heart Center, 312, East Main Street, Marshalltown, Marshall County, Iowa, 50158, United States

    MARSHALLTOWN, IA 501581888

    Phone: (641) 753-8616

    Fax: (641) 753-7456

    Type: Mailing

  • 1215 DUFF AVE

    AMES, IA 500105400

    Phone: (515) 239-4400

    Type: Mailing

  • 421 E MERLE HIBBS BLVD

    MARSHALLTOWN, IA 501581888

    Phone: (641) 753-8616

    Fax: (641) 753-7456

    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: 2007-12-07

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

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20071207000363IPediatric MedicineIATBD

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.

Verify on CMS Revalidation Lookup Tool

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.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 50158)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 1254244239View full group profile

Reviews

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Frequently asked questions

How do payers reference DR. WENDY KAY THIESSEN (M.D.)?
For DR. WENDY KAY THIESSEN (M.D.), use NPI 1306827035 as the unique 10-digit identifier.
Active or inactive — what applies to DR. WENDY KAY THIESSEN (M.D.)?
You should see DR. WENDY KAY THIESSEN (M.D.) as active in CMS-hosted NPPES data.
What expertise is attributed to DR. WENDY KAY THIESSEN (M.D.)?
DR. WENDY KAY THIESSEN (M.D.)'s specialty line reads Pediatrics Physician. Clinical services aligned with this taxonomy classification.
Is DR. WENDY KAY THIESSEN (M.D.) located near Marshalltown?
DR. WENDY KAY THIESSEN (M.D.) currently maps to Marshalltown, Iowa in this extract.
What does 4 location(s) imply?
4 practice locations appear in the available data.

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