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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ALLEN GREGG SOUTH M.D.
NPI 1295784569
Obstetrics & Gynecology - Gynecology in Seattle, WA

Active since May 06, 2006
1229 MADISON ST, SUITE 610, SEATTLE, WA 98104(206) 709-8600(206) 215-2690 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 13, 2026, Mar 7, 2023 (2 updates tracked since 2023).

About Dr. Allen Gregg South M.d. NPPES

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

DR. ALLEN GREGG SOUTH M.D. (NPI 1295784569) is an individual gynecology provider in Seattle, Washington, licensed in Washington (MD00013266) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1295784569
Entity TypeIndividualMale
Primary Taxonomy207VG0400X
Provider Legal NameDR. ALLEN GREGG SOUTHCredential: M.D.
Location Address1229 MADISON ST, SUITE 610Seattle, WA 98104-3586
Mailing Address1229 Madison St, Suite 610Seattle, WA 98104-3586 · (206) 709-8600 · Fax (206) 215-2690
Phone(206) 709-8600
Fax(206) 215-2690
Sole ProprietorNo
Enumeration DateMay 6, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1295784569 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207VG0400X
License✔ Licensed in WA · MD00013266
Definition
A physician who specializes in diagnosis, treatment, and management of patients with gynecologic conditions. Source: National Uniform Claim Committee
1229 MADISON ST, Seattle, WA 98104
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Other Identifiers 2

Medicaid1826304WA
Other06038900WA · L And I

Other Providers at the Same Location NPPES 20

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

SWEDISH HEALTH SERVICE
Pediatrics (Neonatal-Perinatal Medicine)
1229 MADISON ST, STE 750
SEATTLE, WA 98104
King County (206) 386-2101
JONATHAN S MARON M.D.
Anesthesiology
1229 MADISON ST, SUITE 1440
SEATTLE, WA 98104
King County (206) 625-0578
ANDREW H CHUNG M.D.
Anesthesiology
1229 MADISON ST, SUITE 1440
SEATTLE, WA 98104
King County (206) 625-0578
DENISE Y LIM M.D.
Anesthesiology
1229 MADISON ST, SUITE 1440
SEATTLE, WA 98104
King County (206) 625-0578
ROBIN E COLE MD
Obstetrics & Gynecology
1229 MADISON ST, STE 1500
SEATTLE, WA 98104
King County (206) 386-9500
SKIN SURGERY CENTER PS
Clinic/Center (Ambulatory Surgical)
1229 MADISON ST, SUITE 1480
SEATTLE, WA 98104
King County (206) 346-6647
MARK E GIBSON M.D.
Anesthesiology
1229 MADISON ST, SUITE 1440
SEATTLE, WA 98104
King County (206) 625-0578
JENNIFER L MUSHEN RN
Registered Nurse (Medical-Surgical)
1229 MADISON ST, SUITE 1600
SEATTLE, WA 98104
King County (206) 386-2600

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 Allen South's NPI number?

The NPI number for Allen South is 1295784569. It was assigned to this individual provider in the NPPES registry on May 6, 2006.

Where is Allen South located?

Allen South practices at 1229 Madison St Suite 610, Seattle, WA 98104. The listed phone number is (206) 709-8600.

What is Allen South's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecology, with taxonomy code 207VG0400X.

When was this NPI record last updated?

The NPPES record for Allen South was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 days 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.