NPPES file of Aug 9, 2026

Katharine Frerichs, PT

Physical Therapist · Herrin, IL

Katharine Frerichs, PT is a physical therapist with a practice address in Herrin, Illinois, and NPI 1740168848, issued on Aug 26, 2025. Check the license (Illinois 070029375, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1740168848
Name
Katharine Frerichs
Credential
PT
Primary taxonomy
Physical Therapist 225100000X
License number
070029375 IL
Self-reported in NPPES; status is on the state search
Practice location
510 Lincoln Dr, Herrin, IL 62948
Phone
(618) 997-6800
Enumerated
Aug 26, 2025
Record last updated
May 26, 2026
Fax
(618) 997-1187
Medicare enrollment
Enrolled (PECOS I20250923002096); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest physical therapist records → All 12,045 in Illinois → Look up another NPI →

Also registered at 510 Lincoln Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sydney Allen, PTAPhysical Therapy Assistant1801432968
  2. Amanda Brazis, DPMFoot & Ankle Surgery Podiatrist1528354602
  3. Treg Brown, MDOrthopaedic Surgery Physician1598870115
  4. Travis Chapman, PTPhysical Therapist1245822923
  5. Michele CheathamPhysical Therapist1437577434
  6. Hollis Clark, P.A.-C.Physician Assistant1154659894

Verify Katharine Frerichs in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 070029375    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Southern Orthopedic Associates SCHerrin, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Katharine Frerichs among 12,045 physical therapist records in Illinois

Katharine Frerichs, PT is one of 12,045 physical therapist records with a practice address in Illinois. 36% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 94% of them.

  • NPI issued2025 · 94% of these records are older, 2% newer
  • In a Medicare fileYes · 36% of these records are
  • In the CMS Doctors and Clinicians fileYes · 37% of these records are
  • Graduated2025 · median 2015 among the 4,392 with a school on file
  • Record last updated2026 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

39 physical therapist records list a practice address in Herrin

They are 39 of the 419 NPPES records with a practice address in Herrin, and 12,045 physical therapist records in Illinois.

All 12,045 in Illinois → Every provider in Herrin → Physical Therapist nationwide →

The 8 physical therapist records with the nearest ZIP codes

  1. Adam Barciszewski, PTHerrin, IL 629481467637223
  2. Sarah Boots, PTHerrin, IL 629481578746400
  3. Jennifer Colboth, M.P.T.Herrin, IL 629481659342046
  4. Maria Cull, PTHerrin, IL 629481932189982
  5. Ruth Daly, P.T.Herrin, IL 629481164505517
  6. Ginger Funk, PTHerrin, IL 629481174509343
  7. Pamela Hunter, PHYSICAL THERAPISTHerrin, IL 629481164537783
  8. Phyllis Krueger, P.T.Herrin, IL 629481932262805

Common questions

What is Katharine Frerichs, PT's NPI number?

Katharine Frerichs, PT's National Provider Identifier (NPI) is 1740168848, issued on Aug 26, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Katharine Frerichs, PT located?

The NPPES record lists a practice address at 510 Lincoln Dr, Herrin, IL, 62948. Phone: (618) 997-6800. Providers update this record themselves, so call before visiting.

How can I verify Katharine Frerichs, PT's license?

NPPES lists Illinois license number 070029375, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.