Dr. John Christian Hardie , PhD
Psychologist • Chicago, IL
85 Revere Drive, Suite 108
Chicago, IL 60657
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on October 17, 2007; this date does not establish years in practice.
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Published CMS data list 270 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 90837 — Psychotherapy: 270 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See the full table · Guide: How to read Medicare Part B data
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Fewer Medicare Part B services than 60% of clinicians listed under Psychologist in Chicago, IL (2024, 17 clinicians with data). Median for this group: 305. Middle half: 95 to 633.
Close to the middle for Medicare Part B services among clinicians listed under Psychologist in Illinois (2024, 72 clinicians with data). Median for this group: 275. Middle half: 132 to 435.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 514 in 2020 to 270 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
85 Revere Drive
Suite 108
Chicago, IL 60657
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Chicago, IL. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2004
What Public CMS Data Show
Psychologist: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
15 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $41,432 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $31,631 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Years since graduation
22 years (graduated 2004)
CMS Doctors and Clinicians data list 2004 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2007
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Hardie has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Hardie as eligible to order or refer Medicare Part B clinical laboratory and imaging services and durable medical equipment (DME) for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Chicago and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 60% of clinicians listed under Psychologist in Chicago, IL (2024, 17 clinicians with data). Median for this group: 305. Middle half: 95 to 633.
Close to the middle for clinicians listed under Psychologist in Illinois (2024, 72 clinicians with data). Median for this group: 275. Middle half: 132 to 435.
Medicare-allowed amount
A lower Medicare-allowed amount than 60% of clinicians listed under Psychologist in Chicago, IL (2024, 17 clinicians with data). Median for this group: $44,602. Middle half: $15,269 to $81,808.
A higher Medicare-allowed amount than 60% of clinicians listed under Psychologist in Illinois (2024, 72 clinicians with data). Median for this group: $31,900. Middle half: $17,499 to $50,301.
Paid by Medicare
A lower Medicare payment amount than 60% of clinicians listed under Psychologist in Chicago, IL (2024, 17 clinicians with data). Median for this group: $34,391. Middle half: $12,017 to $65,481.
A higher Medicare payment amount than 60% of clinicians listed under Psychologist in Illinois (2024, 72 clinicians with data). Median for this group: $24,141. Middle half: $13,031 to $39,170.
333 active clinicians are listed under Psychologist with a practice address in Chicago, IL (1,011 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Chicago
8.7% of these 333 clinicians have the CMS telehealth indicator.
13.5% of these 333 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 47% from 514 in 2020 to 270 in 2024.
- 2020: 514
- 2021: 450
- 2022: 536
- 2023: 539
- 2024: 270
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Medicare-allowed amount
Medicare-allowed amount decreased 45% from $74,823 in 2020 to $41,432 in 2024.
- 2020: $74,823
- 2021: $71,442
- 2022: $83,123
- 2023: $80,473
- 2024: $41,432
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Paid by Medicare
Paid by Medicare decreased 46% from $58,308 in 2020 to $31,631 in 2024.
- 2020: $58,308
- 2021: $56,088
- 2022: $64,910
- 2023: $62,551
- 2024: $31,631
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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90837
Psychotherapy, 1 hour
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270 | 13 | $175.00 | $153.45 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2021-04-20NUCC Taxonomy Code: 103T00000X
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
NUCC Taxonomy Code: 103TH0004X
A psychologist who specializes in clinical health psychology that investigates and implements clinical services across diverse populations and settings to promote health and well-being and to prevent, treat, and manage illness and disability. Clinical health psychology sees health as the confluence of psychological, social, cultural, and biological factors and applies this understanding to professional activities including:<br/>* Research<br/>* Clinical service<br/>* Consulting with, educating, and supervising other health care providers and psychologists<br/>* Advising organizations, institutions, the public, and policymakers
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - CLINICAL PSYCHOLOGIST
I20110818000039
IL
0143499699
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Secondary Practice Locations
2800 N Sheridan Rd Ste 108
Chicago, IL 606576183
Phone: 8475599343
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 85 REVERE DRIVE, SUITE 108, CHICAGO, IL 60657 (Tel: 8475599343)
Psychologist (license number reported to NPPES: IL 071007352)
NPI status registered as active in NPPES database
Registered at 3100 N SHERIDAN RD, APT. 9E, CHICAGO, IL 606574954 (Tel: 3128105646)
Registered at 3100 N SHERIDAN RD, APT. 9E, CHICAGO, IL 606574954 (Tel: 3128105646)
Recorded as JOHN HARDIE, PH.D.
Psychologist (license number reported to NPPES: IL 071007352)
NPI status registered as active in NPPES database
Registered at 3100 N SHERIDAN RD, APT. 9E, CHICAGO, IL 606574954 (Tel: 3128105646)
Registered at 3100 N SHERIDAN RD, APT. 9E, CHICAGO, IL 606574954 (Tel: 3128105646)
Recorded as JOHN HARDIE, PH.D.
Psychologist (license number reported to NPPES: IL 071007352)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Psychologists in Chicago
- Dr. Dinko Aleksandrov, PsyD
- Dr. Kenneth Lofland, PhD
- Dr. Michael Black, PsyD
- Dr. Maureen Daly, PhD
- Dr. Kimberley Gelbort, PhD
- Dr. David Smith, MA, PhD
Mailing Address
3100 N Sheridan Rd, Apt. 9e
Chicago, IL 606574954
Phone: 3128105646