NPPES file of Aug 9, 2026

Katherina Krentkowski, LCPC, LMHC

Mental Health Counselor · Oak Brook, IL

Katherina Krentkowski, LCPC, LMHC is a mental health counselor with a practice address in Oak Brook, Illinois, and NPI 1285793463, issued on Dec 6, 2006. Check the license (Illinois 180.006784, 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
1285793463
Name
Katherina Krentkowski
Credential
LCPC, LMHC
Primary taxonomy
Mental Health Counselor 101YM0800X
License numbers
180.006784 IL
39001657A IN
Self-reported in NPPES; status is on the state search
Practice location
3500 Spring RD, Oak Brook, IL 60523
Phone
(630) 655-0404
Enumerated
Dec 6, 2006
Record last updated
Feb 13, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(630) 655-0101
Medicare enrollment
Enrolled (PECOS I20231207003271); 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.
Download card Updates feed

8 nearest mental health counselor records → All 10,716 in Illinois → Look up another NPI →

Also registered at 3500 Spring RD

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

  1. Scott De Valk, PSY.D., LCSWClinical Social Worker1023298734
  2. Frances Gaik, PSY. DMental Health Counselor1295916500
  3. Donald Olund, LPCProfessional Counselor1669657417

Verify Katherina Krentkowski 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 180.006784    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Bills Medicare through one group practice

  1. Chicago Christian Counseling Center IncSchererville, IN

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

Katherina Krentkowski among 10,716 mental health counselor records in Illinois

Katherina Krentkowski, LCPC, LMHC is one of 10,716 mental health counselor records with a practice address in Illinois. 4% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than under 1% of them.

  • NPI issued2006 · under 1% of these records are older, 96% newer
  • In a Medicare fileYes · 4% of these records are
  • In the CMS Doctors and Clinicians fileYes · 7% of these records are
  • Graduated2001 · median 2015 among the 726 with a school on file
  • Record last updated2020 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YM0800X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

48 mental health counselor records list a practice address in Oak Brook

They are 48 of the 950 NPPES records with a practice address in Oak Brook, and 10,716 mental health counselor records in Illinois.

All 10,716 in Illinois → Every provider in Oak Brook → Mental Health Counselor nationwide →

The 8 mental health counselor records with the nearest ZIP codes

  1. Teresa Ammirati, LCPCOak Brook, IL 605231124182308
  2. Norma Berlin, L.C.P.C.Oak Brook, IL 605231154338002
  3. Ryan Edwards, NONEOak Brook, IL 605231740717305
  4. Frances Gaik, PSY. DOak Brook, IL 605231295916500
  5. Beth Gasaway, LCPCOak Brook, IL 605231477611887
  6. Jessica Lopez, LPCOak Brook, IL 605231366857252
  7. Heidi McCardell-Wentworth, LCPC, NCC, BC-DMTOak Brook, IL 605231225321052
  8. Nagla Mostafa, LMFTOak Brook, IL 605231841713070

Common questions

What is Katherina Krentkowski, LCPC, LMHC's NPI number?

Katherina Krentkowski, LCPC, LMHC's National Provider Identifier (NPI) is 1285793463, issued on Dec 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Katherina Krentkowski, LCPC, LMHC located?

The NPPES record lists a practice address at 3500 Spring RD, Oak Brook, IL, 60523. Phone: (630) 655-0404. Providers update this record themselves, so call before visiting.

How can I verify Katherina Krentkowski, LCPC, LMHC's license?

NPPES lists Illinois license number 180.006784, 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.