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MARK LEON WILLENBRING MD
NPI 1003930124
Psychiatry & Neurology - Psychiatry in Saint Paul, MN

Active since March 16, 2007PECOS Enrolled
745 VICTORIA ST S, SAINT PAUL, MN 55102(202) 379-6736 Get Directions Write a Review

NPPES record last updated: October 12, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 12, 2023, May 19, 2023 (2 updates tracked since 2023).

About Mark Leon Willenbring Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK LEON WILLENBRING MD (NPI 1003930124) is an individual psychiatry provider in Saint Paul, Minnesota, licensed in Minnesota (22040) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1003930124
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameMARK LEON WILLENBRINGCredential: MD
Location Address745 VICTORIA ST SSaint Paul, MN 55102-4203
Mailing Address745 Victoria St SSaint Paul, MN 55102-4203 · (202) 379-6736
Phone(202) 379-6736
Sole ProprietorYes
Enumeration DateMarch 16, 2007
Last NPPES UpdateOctober 12, 20232 updates tracked since enumeration
NPPES CertifiedOctober 12, 2023
✔ NPI 1003930124 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in MN · 22040
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
Also ListedPsychiatry & Neurology · Forensic PsychiatryTaxonomy 2084F0202X · License 22040 (MN)
Also ListedPsychiatry & Neurology · Addiction PsychiatryTaxonomy 2084P0802X · License 22040 (MN)
745 VICTORIA ST S, Saint Paul, MN 55102
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark Leon Willenbring Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Mark Willenbring reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mental Health Specialty Group PA
968 mi
Mental Health
110 N CORCORAN ST FL 5
Durham, NC 27701
  • Reassigned Medicare billing, Arkansas, Colorado, Illinois, Indiana, Michigan, Minnesota, North Carolina, North Dakota, New Mexico, New York, Ohio, Oklahoma, Rhode Island, South Carolina and West Virginia enrollments
  • 57 clinicians in this Medicare group
NPI 1801472634 (323) 205-7088
Sud Specialty Group - Ca
1,581 mi
Addiction Medicine
4633 OLD IRONSIDES DR STE 304
Santa Clara, CA 95054
  • Reassigned Medicare billing, California enrollment
  • 1,607 clinicians in this Medicare group
NPI 1972138238 (323) 205-7088

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 55102 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$168.28 typical visit price
range $56.00 – $168.28
Typical copayment $42.07 (range $14.00 – $42.07)
Most-billed visit code 99205
Established Patient
$69.74 typical visit price
range $18.32 – $138.04
Typical copayment $17.43 (range $4.58 – $34.51)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Mark Willenbring's NPI number?

The NPI number for Mark Willenbring is 1003930124. It was assigned to this individual provider in the NPPES registry on March 16, 2007.

Where is Mark Willenbring located?

Mark Willenbring practices at 745 Victoria St S, Saint Paul, MN 55102. The listed phone number is (202) 379-6736.

What is Mark Willenbring's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Mark Willenbring enrolled in Medicare?

Yes. Mark Willenbring is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mark Willenbring's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Willenbring reassigns Medicare benefits to 2 organizations: Mental Health Specialty Group PA (Durham, NC) and Sud Specialty Group - Ca (Santa Clara, CA). 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 Mark Willenbring's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mark Willenbring was last updated on October 12, 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.