DR. GREGORY JAY WILLIAMS
NPI 1215916804
Psychologist - Clinical in Apison, TN

Q: What is Gregory Williams's NPI number?

The NPI number for Gregory Williams is 1215916804. It was assigned to this individual provider in the NPPES registry on January 11, 2006. The provider is also known as Dr. Greg Jay Williams Psy.D..

Q: What is Gregory Williams's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Williams was last updated on October 10, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since January 11, 2006PECOS EnrolledAccepts Medicare Assignment

11014 APISON PIKE, APISON, TN 37302(423) 899-2204(423) 698-4045 Get Directions Write a Review

NPPES record last updated: October 10, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Gregory Jay Williams NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GREGORY JAY WILLIAMS (NPI 1215916804) is an individual clinical provider in Apison, Tennessee, licensed in Tennessee (P0000001910) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1994).

NPPES Registry Identity

NPI1215916804

Entity TypeIndividualMale

Primary Taxonomy103TC0700X

Provider Legal NameDR. GREGORY JAY WILLIAMS

Location Address11014 APISON PIKEApison, TN 37302-0000

Mailing AddressPo Box 80894Chattanooga, TN 37414-7894 · (423) 236-5888 · Fax (423) 476-4808

Phone(423) 899-2204

Fax(423) 698-4045

Sole ProprietorYes

Medical School CMSOtherGraduated 1994

Enumeration DateJanuary 11, 2006

Last NPPES UpdateOctober 10, 2008

✔ NPI 1215916804 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in TN · P0000001910

Definition

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.

11014 APISON PIKE, Apison, TN 37302

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Other Names 1

Other Name (5)Dr. Greg Jay Williams Psy.d.

Other Identifiers 2

Medicare ID-Type Unspecified3686825TN · Identification Number

Medicare UPIN3017014

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Alliant Health Plans, Inc., BlueCross BlueShield of Tennessee, Oscar Insurance Company and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gregory Jay Williams is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9133316102

PECOS Enrollment IDI20110831000364

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy, 1 hour 90837

Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 1-hour session, you'll talk about your feelings, thoughts, and behaviors to help identify and manage mental health issues. This process aids in personal growth, healing, and improved well-being.

247 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37302 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$160.89 typical visit price

range $52.64 – $160.89

Typical copayment $40.22 (range $13.16 – $40.22)

Most-billed visit code 99205

Established Patient

$93.60 typical visit price

range $16.72 – $131.41

Typical copayment $23.40 (range $4.18 – $32.85)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JOELLE MARLIN

Social Worker (Clinical)

11014 APISON PIKE
APISON, TN 37302

Hamilton County (423) 236-5888

DR. LEONA GRACE GULLEY LPC, RN,CS

Counselor (Professional)

11014 APISON PIKE
APISON, TN 37302

Hamilton County (423) 236-5888

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Williams's NPI number?

The NPI number for Gregory Williams is 1215916804. It was assigned to this individual provider in the NPPES registry on January 11, 2006. The provider is also known as Dr. Greg Jay Williams Psy.D..

Where is Gregory Williams located?

Gregory Williams practices at 11014 Apison Pike, Apison, TN 37302. The listed phone number is (423) 899-2204.

What is Gregory Williams's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Gregory Williams enrolled in Medicare?

Yes. Gregory Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Gregory Williams accept?

Health plans from Alliant Health Plans, Inc., BlueCross BlueShield of Tennessee, Oscar Insurance Company and UnitedHealthcare list Gregory Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Gregory Williams was last updated on October 10, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.