GRISHAM ASSOCIATES LTD
NPI 1639295405
Psychologist in Woodstock, GA

Active since March 22, 2007
8910 MAIN ST, WOODSTOCK, GA 30188(770) 924-1818(770) 928-5731 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Grisham Associates Ltd NPPES

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

GRISHAM ASSOCIATES LTD (NPI 1639295405) is a healthcare organization registered as a psychologist in Woodstock, Georgia and active in the NPI registry since March 2007. The organization lists Milton Grisham, Psychologist, as its authorized official.

NPPES Registry Identity

NPI1639295405
Entity TypeOrganization
Primary Taxonomy103T00000X
Legal Business NameGRISHAM ASSOCIATES LTD
Location Address8910 MAIN STWoodstock, GA 30188-4916
Mailing Address3642 Childers Way NeRoswell, GA 30075-5275
Fax(770) 928-5731
Organization SubpartNo
Authorized OfficialMilton GrishamPsychologist · (770) 924-1818
Enumeration DateMarch 22, 2007
Last NPPES UpdateAugust 22, 2020
✔ NPI 1639295405 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License✔ Licensed in GA · 1336
Definition
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.
8910 MAIN ST, Woodstock, GA 30188

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Grisham Associates Ltd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Grisham Associates Ltd, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Clinical Psychologist
NPI 1235255019
8910 MAIN ST
Woodstock, GA 30188
(770) 924-1818
✔ PECOS✔ Accepts MedicareSame address
Clinical Psychologist
NPI 1427277441
1180 GRIMES BRIDGE RD #400
Roswell, GA 30075
(770) 645-5650
✔ PECOS✔ Accepts Medicare11 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Grisham Associates Ltd's NPI number?

The NPI number for Grisham Associates Ltd is 1639295405. It was assigned to this organization in the NPPES registry on March 22, 2007.

Where is Grisham Associates Ltd located?

Grisham Associates Ltd is located at 8910 Main St, Woodstock, GA 30188. The listed phone number is (770) 924-1818.

What is Grisham Associates Ltd's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is Grisham Associates Ltd enrolled in Medicare?

Yes. Grisham Associates Ltd is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Grisham Associates Ltd?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Clinical Psychologist, reassign their Medicare billing to Grisham Associates Ltd. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Grisham Associates Ltd was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.