GREYSTONE OBGYN PC
NPI 1790839157
Specialist in Conyers, GA

Q: What is Greystone Obgyn PC's NPI number?

The NPI number for Greystone Obgyn PC is 1790839157. It was assigned to this organization in the NPPES registry on January 23, 2007. The provider is doing business as Greystone OB GYN.

Q: What is Greystone Obgyn PC's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Active since January 23, 2007CLIA 11D0923203 · Waiver

3240 AVALON BOULEVARD, CONYERS, GA 30013(770) 860-1133(770) 860-1599 Get Directions Write a Review

NPPES record last updated: July 28, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Greystone Obgyn Pc NPPES

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

GREYSTONE OBGYN PC (NPI 1790839157), doing business as Greystone Ob Gyn, is a healthcare organization registered as a specialist in Conyers, Georgia and active in the NPI registry since January 2007. The organization holds a CLIA Waiver certificate valid through December 17, 2026 and lists Timothy N. Cowthorn, Physician/managing Partner, as its authorized official.

NPPES Registry Identity

NPI1790839157

Entity TypeOrganization

Primary Taxonomy174400000X

Legal Business NameGREYSTONE OBGYN PC

Location Address3240 AVALON BOULEVARDConyers, GA 30013-6320

Mailing Address3240 Avalon BoulevardConyers, GA 30013-6320 · (770) 860-1133 · Fax (770) 860-1599

Phone(770) 860-1133

Fax(770) 860-1599

Organization SubpartNo

Authorized OfficialTimothy N. CowthornPhysician/managing Partner · (770) 860-1133

Enumeration DateJanuary 23, 2007

Last NPPES UpdateJuly 28, 2025

NPPES CertifiedJuly 17, 2025

✔ NPI 1790839157 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in GA · 038936

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

3240 AVALON BOULEVARD, Conyers, GA 30013

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Other Names 1

Doing Business AsGreystone Ob Gyn

Other Identifiers 1

Medicaid00615469EGA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of Alabama and more.Insurance ›

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 11D0923203

Greystone Ob/Gyn PC · Conyers, GA

Active · expires Dec 17, 2026

CLIA Number11D0923203

Laboratory TypePhysician Office

Certificate Effective DateDecember 18, 2024

Certificate Expiration DateDecember 17, 2026

Laboratory DirectorTimothy Cowthorn

Laboratory Phone(770) 860-1575

Laboratory LocationGreystone Ob/Gyn PC3240 Avalon Boulevard, Conyers, GA 30013

CLIA data matches this NPI record on: Address Name

This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES

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

MEGAN SUTTON CRAIG M.D.

Obstetrics & Gynecology

3240 AVALON BOULEVARD
CONYERS, GA 30013

Rockdale County (770) 860-1133

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 Greystone Obgyn PC's NPI number?

The NPI number for Greystone Obgyn PC is 1790839157. It was assigned to this organization in the NPPES registry on January 23, 2007. The provider is doing business as Greystone OB GYN.

Where is Greystone Obgyn PC located?

Greystone Obgyn PC is located at 3240 Avalon Boulevard, Conyers, GA 30013. The listed phone number is (770) 860-1133.

What is Greystone Obgyn PC's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Does Greystone Obgyn PC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 11D0923203) is associated with this NPI, valid through December 17, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Greystone Obgyn PC accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee list Greystone Obgyn PC 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 Greystone Obgyn PC was last updated on July 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.