Dr. Gerard R. Williams , PHD LP
Psychologist • Flint, MI
1309 S. Linden Rd., Suite C
Flint, MI 48532
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 December 11, 2006; this date does not establish years in practice.
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Published CMS data list 109 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:
- 96139 — Administration of psychological or neuropsychological test by technician: 67 service units.
- 90791 — Psychiatric diagnostic evaluation: 20 service units.
- 90837 — Psychotherapy: 11 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 all 4 records in the table · Guide: How to read Medicare Part B data
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Fewer Medicare Part B services than 75% of clinicians listed under Psychologist in Michigan (2024, 77 clinicians with data). Median for this group: 203. Middle half: 115 to 400.
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 41 in 2017 to 109 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017–2024.
Practice Location & Contact Primary Location
1309 S. Linden Rd.
Suite C
Flint, MI 48532
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Psychologist: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
26 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 $7,355 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 $5,630 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.
NPI first issued
2006
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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. Williams 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. Williams 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 Flint and Michigan
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 75% of clinicians listed under Psychologist in Michigan (2024, 77 clinicians with data). Median for this group: 203. Middle half: 115 to 400.
Too few clinicians listed under Psychologist in Flint have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A lower Medicare-allowed amount than 85% of clinicians listed under Psychologist in Michigan (2024, 77 clinicians with data). Median for this group: $22,490. Middle half: $11,654 to $49,967.
Too few clinicians listed under Psychologist in Flint have Medicare Part B data for 2024 to compare.
Paid by Medicare
A lower Medicare payment amount than 85% of clinicians listed under Psychologist in Michigan (2024, 77 clinicians with data). Median for this group: $17,111. Middle half: $8,553 to $38,128.
Too few clinicians listed under Psychologist in Flint have Medicare Part B data for 2024 to compare.
47 active clinicians are listed under Psychologist with a practice address in Flint, MI (2,549 in Michigan).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Flint
6.4% of these 47 clinicians have the CMS telehealth indicator.
6.4% of these 47 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 166% from 41 in 2017 to 109 in 2024.
- 2017: 41
- 2018: 37
- 2019: 43
- 2023: 127
- 2024: 109
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Medicare-allowed amount
Medicare-allowed amount increased 54% from $4,781 in 2017 to $7,355 in 2024.
- 2017: $4,781
- 2018: $4,738
- 2019: $5,760
- 2023: $7,799
- 2024: $7,355
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Paid by Medicare
Paid by Medicare increased 72% from $3,272 in 2017 to $5,630 in 2024.
- 2017: $3,272
- 2018: $3,260
- 2019: $3,996
- 2023: $5,849
- 2024: $5,630
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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96139
Administration of psychological or neuropsychological test by technician, each additional 30 minutes
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67 | 11 | $90.00 | $31.62 |
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90791
Psychiatric diagnostic evaluation
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20 | 20 | $225.00 | $165.88 |
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90837
Psychotherapy, 1 hour
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11 | 11 | $197.27 | $143.73 |
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96138
Administration of psychological or neuropsychological test by technician, first 30 minutes
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11 | 11 | $90.00 | $30.68 |
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
NUCC 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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - CLINICAL PSYCHOLOGIST
I20051207000909
MI
0547281495
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
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 - Psychiatric/Mental Health
Nurse Practitioner - Psychiatric/Mental Health
Doctor of Nursing Practice
Psychologist
Social Worker - Clinical
Licensed Master Social Worker
Psychologist - Clinical
Licensed Master Social Worker
Psychiatry & Neurology - Psychiatry
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
NPI status registered as active in NPPES database
Registered at 1309 S. LINDEN RD., SUITE C, FLINT, MI 48532 (Tel: 8106301152)
Registered at 1309 S. LINDEN RD, SUITE C, FLINT, MI 48532 (Tel: (810) 630-1152)
Recorded as GERARD WILLIAMS, PHD LP
Psychologist (license number reported to NPPES: MI 6301007038)
NPI status registered as active in NPPES database
Registered at 4413 CORINNA RD, FLINT, MI 48532 (Tel: 8106301152)
Registered at 4413 CORINNA RD, FLINT, MI 48532 (Tel: 8106301152)
Recorded as GERARD WILLIAMS, PHD
Psychologist (license number reported to NPPES: MI 6301007038)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Psychologists in Flint
Healthcare providers in FlintMailing Address
1309 S. Linden Rd, Suite C
Flint, MI 48532
Phone: 8106301152