Dr. Hillary A Parker , PhD
Psychologist โข Columbus, OH
3650 Olentangy River Rd
Columbus, OH 432143464
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 July 23, 2018; this date does not establish years in practice.
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Published CMS data list 434 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 96139 โ Administration of psychological or neuropsychological test by technician: 189 service units.
- 96133 โ Evaluation of neuropsychological test, each additional hour: 131 service units.
- 96132 โ Evaluation of neuropsychological test, first hour: 39 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 6 records in the table ยท Guide: How to read Medicare Part B data
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More Medicare Part B services than 95% of clinicians listed under Psychologist in Columbus, OH (2024, 27 clinicians with data). Median for this group: 197. Middle half: 55 to 345.
More Medicare Part B services than 90% of clinicians listed under Psychologist in Ohio (2024, 148 clinicians with data). Median for this group: 164. Middle half: 98 to 297.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 354 in 2020 to 434 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
3650 Olentangy River Rd
Columbus, OH 432143464
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Osu Psychiatry Llc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, 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
2016
What Public CMS Data Show
Psychologist: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
39 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 โ by Provider, 2024.
Medicare-allowed amount
About $29,775 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 โ by Provider and Service, 2024.
Paid by Medicare
About $23,542 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 โ by Provider and Service, 2024.
Years since graduation
10 years (graduated 2016)
CMS Doctors and Clinicians data list 2016 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
2018
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, โDoes your provider accept Medicare as full payment?โ
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Parker 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. Parker 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 Columbus and Ohio
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 95% of clinicians listed under Psychologist in Columbus, OH (2024, 27 clinicians with data). Median for this group: 197. Middle half: 55 to 345.
More Medicare Part B services than 90% of clinicians listed under Psychologist in Ohio (2024, 148 clinicians with data). Median for this group: 164. Middle half: 98 to 297.
Medicare-allowed amount
A higher Medicare-allowed amount than 65% of clinicians listed under Psychologist in Columbus, OH (2024, 27 clinicians with data). Median for this group: $21,502. Middle half: $6,879 to $36,064.
A higher Medicare-allowed amount than 65% of clinicians listed under Psychologist in Ohio (2024, 148 clinicians with data). Median for this group: $20,064. Middle half: $10,736 to $36,044.
Paid by Medicare
A higher Medicare payment amount than 65% of clinicians listed under Psychologist in Columbus, OH (2024, 27 clinicians with data). Median for this group: $16,135. Middle half: $5,486 to $27,331.
A higher Medicare payment amount than 70% of clinicians listed under Psychologist in Ohio (2024, 148 clinicians with data). Median for this group: $15,377. Middle half: $8,139 to $27,212.
215 active clinicians are listed under Psychologist with a practice address in Columbus, OH (1,531 in Ohio).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Columbus
15.3% of these 215 clinicians have the CMS telehealth indicator.
28.8% of these 215 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 increased 23% from 354 in 2020 to 434 in 2024.
- 2020: 354
- 2021: 453
- 2022: 220
- 2023: 271
- 2024: 434
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Medicare-allowed amount
Medicare-allowed amount increased 21% from $24,607 in 2020 to $29,775 in 2024.
- 2020: $24,607
- 2021: $27,041
- 2022: $13,133
- 2023: $22,076
- 2024: $29,775
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Paid by Medicare
Paid by Medicare increased 24% from $18,986 in 2020 to $23,542 in 2024.
- 2020: $18,986
- 2021: $21,323
- 2022: $9,992
- 2023: $17,245
- 2024: $23,542
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 ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2018โ2023 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 โ by Provider and Service data, 2019โ2024; 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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96139
Administration of psychological or neuropsychological test by technician, each additional 30 minutes
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189 | 35 | $125.00 | $31.72 |
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96133
Evaluation of neuropsychological test, each additional hour
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131 | 39 | $340.00 | $93.18 |
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96132
Evaluation of neuropsychological test, first hour
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39 | 39 | $445.00 | $122.91 |
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96138
Administration of psychological or neuropsychological test by technician, first 30 minutes
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35 | 35 | $125.00 | $30.83 |
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90791
Psychiatric diagnostic evaluation
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29 | 29 | $595.00 | $163.11 |
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96116
Exam of neurobehavioral status, first hour
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11 | 11 | $320.00 | $88.25 |
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: 2026-05-04NUCC 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: 103TC0700X
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
NUCC Taxonomy Code: 103G00000X
A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - CLINICAL PSYCHOLOGIST
I20190807001259
OH
9133456684
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Osu Psychiatry Llc
1670 Upham Dr, Columbus, OH 432101250
Phone: 6142939600
Osu Psychiatry Llc
700 Ackeran Rd, Columbus, OH 432021559
Osu Psychiatry Llc
3650 Olentangy River Rd, Columbus, OH 432143464
Phone: 6142939600
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner
Advanced Practice Registered Nurse - Certified Nurse Practitioner
Psychiatry & Neurology - Psychiatry
Doctor of Medicine (M.D.)
Nurse Practitioner - Psychiatric/Mental Health
Advanced Practice Registered Nurse - Certified Nurse Practitioner
Psychologist
Doctor of Philosophy (Ph.D.)
Psychiatry & Neurology - Psychiatry
Doctor of Medicine (M.D.)
Psychologist
Doctor of Philosophy (Ph.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 3650 OLENTANGY RIVER RD, COLUMBUS, OH 432143464 (Tel: 6142939600)
Registered at 700 ACKERMAN RD STE 2120, COLUMBUS, OH 432021559 (Tel: 6142939600)
Registered at 3650 OLENTANGY RIVER RD FL 3, COLUMBUS, OH 432143464 (Tel: 6142939600)
Registered at 5300 NORTH MEADOWS DRIVE, BUILDING 1, SUITE 140, GROVE CITY, OH 43123 (Tel: 6146271620)
Psychologist (license number reported to NPPES: OH P.07726)
Registered at 5300 N MEADOWS DR, BUILDING 1, SUITE 140, GROVE CITY, OH 431232546 (Tel: 6146271620)
Clinical Neuropsychologist (license number reported to NPPES: OH P.07726)
NPI status registered as active in NPPES database
Registered at 17273 STATE ROUTE 104, CHILLICOTHE, OH 456019718 (Tel: 7407731141)
Registered at 880 S 5TH ST, COLUMBUS, OH 432062612 (Tel: 5186571219)
Recorded as HILLARY PARKER, PHD
Psychologist (license number reported to NPPES: OH P.07726)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Psychologists in Columbus
- Dr. Kristin Kuntz, PhD
- Dr. Steven Krause, PhD
- Dr. John Lodge, PsyD
- Dr. Peggy Cook, PhD
- Dr. Christopher Nguyen, PhD
- Dr. Richard Laurent, PhD
Mailing Address
700 Ackerman Rd Ste 2120
Columbus, OH 432021559
Phone: 6142939600