NPPES file of Aug 9, 2026

Gretchen E. King, LMFT

Marriage & Family Therapist · Chicago, IL

Gretchen E. King, LMFT is a marriage & family therapist with a practice address in Chicago, Illinois, and NPI 1598923708, issued on May 26, 2008. Check the license (Illinois 166.0000636, as entered in NPPES) with the Illinois board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1598923708
Name
Gretchen E. King
Credential
LMFT
Primary taxonomy
Marriage & Family Therapist 106H00000X
License number
166.0000636 IL
Self-reported in NPPES; status is on the state search
Practice location
30 N Michigan Ave, Chicago, IL 60602
Phone
(872) 256-1102
Enumerated
May 26, 2008
Record last updated
Oct 12, 2015 (not updated in 11 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest marriage & family therapist records → All 1,328 in Illinois → Look up another NPI →

Also registered at 30 N Michigan Ave

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

  1. William Aber, PH.D.Clinical Psychologist1598777187
  2. Andrea Alpert, L.C.S.W.Clinical Social Worker1962526657
  3. Bailey AmisProfessional Counselor1720662448
  4. Elizabeth Aram, PSYDClinical Psychologist1396257366
  5. Maria Ashley, DDSDentist1508083288
  6. David Baum, MDObstetrics & Gynecology Physician1245296888

Verify Gretchen E. King 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 166.0000636    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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Gretchen E. King among 1,328 marriage & family therapist records in Illinois

Gretchen E. King, LMFT is one of 1,328 marriage & family therapist 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 not. Its NPI, issued in 2008, is newer than 17% of them.

  • NPI issued2008 · 17% of these records are older, 81% newer
  • In a Medicare fileNo · 4% of these records are
  • In the CMS Doctors and Clinicians fileNo · 8% of these records are
  • Record last updated2015 · 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 106H00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Marriage & Family Therapist providers in Illinois

There are 1,328 marriage & family therapist records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,328 in Illinois → Every provider in Chicago → Marriage & Family Therapist nationwide →

The 8 marriage & family therapist records with the nearest ZIP codes

  1. Kristina Brown, LMFTChicago, IL 606021679783872
  2. Rachel Diamond, PHD, LMFTChicago, IL 606021235578733
  3. Kristin Flores, LMFTChicago, IL 606021972839165
  4. Michael Glavin, LMFTChicago, IL 606021134547573
  5. Cadmona Hall, PH.D.Chicago, IL 606021619295250
  6. Emily JensenChicago, IL 606021295135614
  7. Robert Kispert, PH.DChicago, IL 606021679542559
  8. Michelle Mannino-Purkey, MFTChicago, IL 606021114298148

Common questions

What is Gretchen E. King, LMFT's NPI number?

Gretchen E. King, LMFT's National Provider Identifier (NPI) is 1598923708, issued on May 26, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Gretchen E. King, LMFT located?

The NPPES record lists a practice address at 30 N Michigan Ave, Chicago, IL, 60602. Phone: (872) 256-1102. Providers update this record themselves, so call before visiting.

How can I verify Gretchen E. King, LMFT's license?

NPPES lists Illinois license number 166.0000636, 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. 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.