Doctor profile · Federal record

Dr. Katherine Shaffer

Mental Health Counselor (CMS: Clinical Social Worker) · Defiance, OH

  • NPI 1639525611
  • Accepts Medicare
  • 10 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
211 Biede Ave
Defiance, OH 435122408
(419) 782-8856
fax (419) 784-4506

Credentials & registration

NPPES · NUCC
NPI registered
May 2016 — 10 yrs on file
Profile last updated
April 24, 2018
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
101YM0800X — NUCC code
State license (1)
Ohio #S.1501183

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1639525611. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
226
Distinct HCPCS
2
Medicare allowed
$23,992
HCPCS Description Services Patients Avg allowed
90837 Psychotherapy, 1 hour 215 34 $105
90791 Psychiatric diagnostic evaluation 11 11 $126

In context: peer comparison

Among 1 peers in Defiance Mental Health Counselor, average services per provider: 113. This provider delivers 2.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Katherine Shaffer's medical specialty?
Dr. Katherine Shaffer practices Mental Health Counselor in Defiance, OH.
Where does Dr. Katherine Shaffer practice?
Dr. Katherine Shaffer practices at 211 Biede Ave, Defiance, OH 435122408. Office phone: 4197828856.
What is Dr. Katherine Shaffer's NPI?
Dr. Katherine Shaffer's National Provider Identifier (NPI) is 1639525611, issued by NPPES.
Does Dr. Katherine Shaffer accept Medicare assignment?
Yes. Dr. Katherine Shaffer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katherine Shaffer commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90837); Psychiatric diagnostic evaluation (HCPCS 90791). Source: CMS Medicare Physician & Other Practitioners file.