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GRISHAM ASSOCIATES, LTD.
NPI 1558580571
Psychologist - Clinical in Roswell, GA

Active since April 25, 2007
1180 GRIMES BRIDGE RD, ROSWELL, GA 30075(770) 645-5650 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Grisham Associates, Ltd. NPPES

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

GRISHAM ASSOCIATES, LTD. (NPI 1558580571) is a healthcare organization registered as a clinical in Roswell, Georgia and active in the NPI registry since April 2007. The organization lists Joanna W. Grisham, Licensed Psychologist, as its authorized official.

NPPES Registry Identity

NPI1558580571
Entity TypeOrganization
Primary Taxonomy103TC0700X
Legal Business NameGRISHAM ASSOCIATES, LTD.
Location Address1180 GRIMES BRIDGE RDRoswell, GA 30075-3986
Mailing Address3642 Childers Way NeRoswell, GA 30075-5275 · (770) 645-9801
Phone(770) 645-5650
Organization SubpartNo
Authorized OfficialJoanna W. GrishamLicensed Psychologist · (770) 645-9801
Enumeration DateApril 25, 2007
Last NPPES UpdateAugust 22, 2020
✔ NPI 1558580571 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 GA · 1449
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.
1180 GRIMES BRIDGE RD, Roswell, GA 30075
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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)

Joanna Grisham, PH.D.
Clinical Psychologist
NPI 1427277441
1180 GRIMES BRIDGE RD #400
Roswell, GA 30075
(770) 645-5650
✔ PECOS✔ Accepts MedicareSame address
Milton Grisham, PHD
Clinical Psychologist
NPI 1235255019
8910 MAIN ST
Woodstock, GA 30188
(770) 924-1818
✔ 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 1558580571. It was assigned to this organization in the NPPES registry on April 25, 2007.

Where is Grisham Associates, Ltd. located?

Grisham Associates, Ltd. is located at 1180 Grimes Bridge Rd, Roswell, GA 30075. The listed phone number is (770) 645-5650.

What is Grisham Associates, Ltd.'s specialty?

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

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.