MR. MARK STEVEN FOSSIE MS, LMFT, CSAC, ICS
NPI 1114145612
Marriage & Family Therapist in Milwaukee, WI

Q: What is Mark Fossie's NPI number?

The NPI number for Mark Fossie is 1114145612. It was assigned to this individual provider in the NPPES registry on April 23, 2007.

Q: What is Mark Fossie's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Q: When was this NPI record last updated?

The NPPES record for Mark Fossie was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.

Active since April 23, 2007PECOS Enrolled

2821 N 4TH ST, 516, MILWAUKEE, WI 53212(414) 263-6000(414) 263-2270 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Mr. Mark Steven Fossie Ms, Lmft, Csac, Ics NPPES

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

MR. MARK STEVEN FOSSIE MS, LMFT, CSAC, ICS (NPI 1114145612) is an individual marriage & family therapist in Milwaukee, Wisconsin, licensed in Wisconsin (460-124) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1114145612

Entity TypeIndividualMale

Primary Taxonomy106H00000X

Provider Legal NameMR. MARK STEVEN FOSSIECredential: MS, LMFT, CSAC, ICS

Location Address2821 N 4TH ST, 516Milwaukee, WI 53212-2362

Mailing Address2821 N 4th St, 516Milwaukee, WI 53212-2362 · (414) 263-6000 · Fax (414) 263-2270

Phone(414) 263-6000

Fax(414) 263-2270

Sole ProprietorYes

Enumeration DateApril 23, 2007

Last NPPES UpdateSeptember 11, 2025

✔ NPI 1114145612 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers

Taxonomy Code106H00000X

License✔ Licensed in WI · 460-124

Definition

A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.

Also ListedCounselor · Addiction (Substance Use Disorder)Taxonomy 101YA0400X · License 14971-132 (WI)

Also ListedSocial WorkerTaxonomy 104100000X · License 402 (WI)

2821 N 4TH ST, Milwaukee, WI 53212

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Mark Steven Fossie Ms, Lmft, Csac, Ics 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 Reassignment

Medicare enrollment records show Mark Fossie reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Power Of Change

9.4 mi

Mental Health (Including Community Mental Health Center)

2821 N VEL R PHILLIPS AVE STE 131
Milwaukee, WI 53212

Reassigned Medicare billing, Wisconsin enrollment
3 clinicians in this Medicare group

NPI 1730477688 (414) 374-8787

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

URBAN NORTH NEIGHBORHOOD CONCERNS ASSOCIATION INC

Local Education Agency (LEA)

2821 N 4TH ST, RM 208
MILWAUKEE, WI 53212

Milwaukee County (888) 273-6691

HELEN REYNOLDS

Counselor (Professional)

2821 N 4TH ST
MILWAUKEE, WI 53212

Milwaukee County (414) 264-4217

SHECAR SUBSTANCE ABUSE/MENTAL HEALTH CLINIC

Substance Abuse Rehabilitation Facility

2821 N 4TH ST
MILWAUKEE, WI 53212

Milwaukee County (414) 372-3903

HEATHER SINER LPC

Counselor (Professional)

2821 N 4TH ST
MILWAUKEE, WI 53212

Milwaukee County (414) 264-4217

MESHELLE PRESTON SAC-IT

Counselor (Addiction (Substance Use Disorder))

2821 N 4TH ST
MILWAUKEE, WI 53212

Milwaukee County (414) 264-4217

MRS. CATHERIN CARR

Counselor (Addiction (Substance Use Disorder))

2821 N 4TH ST, SUITE 516
MILWAUKEE, WI 53212

Milwaukee County (414) 263-6000

MS. SUZANNE GUTIERREZ AAS, SAC-IT

Counselor (Addiction (Substance Use Disorder))

2821 N 4TH ST
MILWAUKEE, WI 53212

Milwaukee County (414) 263-6000

WENDELL J. HARRIS & ASSOCIATES LLC

Counselor (Mental Health)

2821 N 4TH ST, SUITE 224
MILWAUKEE, WI 53212

Milwaukee County (414) 265-5538

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 Fossie's NPI number?

The NPI number for Mark Fossie is 1114145612. It was assigned to this individual provider in the NPPES registry on April 23, 2007.

Where is Mark Fossie located?

Mark Fossie practices at 2821 N 4th St 516, Milwaukee, WI 53212. The listed phone number is (414) 263-6000.

What is Mark Fossie's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Is Mark Fossie enrolled in Medicare?

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

Which organization bills Medicare for Mark Fossie's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Fossie reassigns Medicare benefits to The Power Of Change (Milwaukee, WI). 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 Mark Fossie's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Fossie accept?

Health plans from Anthem Blue Cross and Blue Shield list Mark Fossie 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 Mark Fossie was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.