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Active NPI 1013950203 Individual Practitioner Male Practitioner

William J Affeldt , MSSW LICSW

Social Worker - Clinical • Walker, MN

Professional Overview & Biography Verified Profile Summary

William Affeldt, MSSW LICSW is a certified Social Worker - Clinical practicing in Walker, MN. With approximately 40 years of clinical experience since completing medical education in 1986, William Affeldt delivers high-quality medical care to the local community at 310 RAILROAD AVE.

William Affeldt does not directly accept Medicare assignment.

Frequently performed procedures and clinical services include psychotherapy, psychiatric diagnostic evaluation. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

310 Railroad Ave

Walker, MN 56484

Telephone 2186759170
Fax 3206390014

Medicare Profile & Education

Medical School

Other

Graduation Year

1986

Medicare Assignment

Not Specified

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Social Worker - Clinical in Walker, MN

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
40 Yrs +14.5 yrs vs City Avg
City Avg: 25.5 Yrs
State Avg: 15.5 Yrs
Regional Practice Density
4 Specialists

Practicing in Walker, MN (6749 Statewide)

Telehealth Adoption Rate
25.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
72.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Affeldt (40 Years) 40 Yrs
Walker Specialty Average (25.5 Years) 25.5 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
90837 Psychotherapy, 60 minutes
81 12 $407.00 $110.74

Medical Specialties & State Licenses

CMS Verified: 2026-01-27
Social Worker - Clinical Primary Specialty

NUCC Taxonomy Code: 1041C0700X

State License MN 4248

A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.

Social Worker

NUCC Taxonomy Code: 104100000X

State License MN 4248

A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
970757300 (MN)
Commercial Insurance / Payer ID Ucare
110573C851
Commercial Insurance / Payer ID Medica
6248959
Commercial Insurance / Payer ID Health Partners
HP27808
Commercial Insurance / Payer ID Preferred One
922241007835

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

1 Associated Practitioners
NPI 1609450428

Licensed Independent Clinical Social Worker, Licensed Clinical Social Worker, Licensed Alcohol and Drug Counselor

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

12 Historical Events
📍
Updated Practice Location January 27, 2026

Registered at 310 RAILROAD AVE, WALKER, MN 56484 (Tel: 2186759170)

📍
Updated Business Mailing Address January 27, 2026

Registered at 310 RAILROAD AVE, WALKER, MN 56484 (Tel: 2186759170)

📍
Updated Practice Location May 12, 2022

Registered at 1001 HART BLVD STE 100, MONTICELLO, MN 553628929 (Tel: 7632952921)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) May 12, 2022

Social Worker (License #4248 in MN)

📍
Updated Practice Location February 25, 2021

Registered at 1700 HIGHWAY 25 N, BUFFALO, MN 553131930 (Tel: 7636843719)

📍
Updated Business Mailing Address February 25, 2021

Registered at 1700 HIGHWAY 25 N, BUFFALO, MN 553131930 (Tel: 7636843719)

NPI Profile Active January 27, 2010

NPI status registered as active in NPPES database

📍
Updated Practice Location January 27, 2010

Registered at 407 WASHINGTON ST, MONTICELLO, MN 553628815 (Tel: 7632954001)

📍
Updated Business Mailing Address January 27, 2010

Registered at 1321 13TH ST N, ST CLOUD, MN 563032614 (Tel: 3202525010)

👤
Provider Name / Credentials Updated January 27, 2010

Recorded as WILLIAM AFFELDT, MSSW LICSW

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) January 27, 2010

Social Worker (License #4248 in MN)

🟢
Initial NPI Registration & Enumeration June 14, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1013950203
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 14, 2006
Last Update: January 27, 2026
Sole Proprietor: No

Mailing Address

310 Railroad Ave

Walker, MN 56484

Phone: 2186759170

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.