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SHIRLEY ANN RIGGS, M.D., F.A.C.P., P.A.
NPI 1336458512
Internal Medicine - Hematology in Houston, TX

Active since October 05, 2010
CHI ST. LUKE'S TEXAS HEART INSTITUTE CLINIC, SUITE P115, 1101 BATES AVENUE, MC4-160, HOUSTON, TX 77030(713) 529-4343(713) 790-1871 Get Directions Write a Review

NPPES record last updated: December 3, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Shirley Ann Riggs, M.d., F.a.c.p., P.a. NPPES

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

SHIRLEY ANN RIGGS, M.D., F.A.C.P., P.A. (NPI 1336458512) is a healthcare organization registered as a hematology in Houston, Texas and active in the NPI registry since October 2010. The organization lists Shirley Ann Riggs, Owner/director, as its authorized official.

NPPES Registry Identity

NPI1336458512
Entity TypeOrganization
Primary Taxonomy207RH0000X
Legal Business NameSHIRLEY ANN RIGGS, M.D., F.A.C.P., P.A.
Location AddressCHI ST. LUKE'S TEXAS HEART INSTITUTE CLINIC, SUITE P115, 1101 BATES AVENUE, MC4-160Houston, TX 77030
Mailing Address8205 Braesmain Drive #20609Houston, TX 77225 · (715) 529-4343 · Fax (713) 790-1871
Phone(713) 529-4343
Fax(713) 790-1871
Organization SubpartNo
Authorized OfficialShirley Ann RiggsOwner/director · (713) 529-4343
Enumeration DateOctober 5, 2010
Last NPPES UpdateDecember 3, 2021
NPPES CertifiedDecember 3, 2021
✔ NPI 1336458512 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · HematologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0000X
Definition
An internist with additional training who specializes in diseases of the blood, spleen and lymph. This specialist treats conditions such as anemia, clotting disorders, sickle cell disease, hemophilia, leukemia and lymphoma.
CHI ST. LUKE'S TEXAS HEART INSTITUTE CLINIC, SUITE P115, Houston, TX 77030
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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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Shirley Ann Riggs, M.d., F.a.c.p., P.a. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Shirley Ann Riggs, M.D., F.A.C.P., P.A., which bills Medicare for the services this clinician delivers.

Clinician (1)

Shirley Riggs, M.D.
Hematology
NPI 1649332255
1101 BATES AVENUE, P115, MC4-160
Houston, TX 77030
(713) 529-4343
✔ PECOS✔ Accepts Medicare10 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 Shirley Ann Riggs, M.D., F.A.C.P., P.A.'s NPI number?

The NPI number for Shirley Ann Riggs, M.D., F.A.C.P., P.A. is 1336458512. It was assigned to this organization in the NPPES registry on October 5, 2010.

Where is Shirley Ann Riggs, M.D., F.A.C.P., P.A. located?

Shirley Ann Riggs, M.D., F.A.C.P., P.A. is located at Chi St. Luke's Texas Heart Institute Clinic, Suite P115 1101 Bates Avenue, Mc4-160, Houston, TX 77030. The listed phone number is (713) 529-4343.

What is Shirley Ann Riggs, M.D., F.A.C.P., P.A.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology, with taxonomy code 207RH0000X.

Is Shirley Ann Riggs, M.D., F.A.C.P., P.A. enrolled in Medicare?

Yes. Shirley Ann Riggs, M.D., F.A.C.P., P.A. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Shirley Ann Riggs, M.D., F.A.C.P., P.A.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Hematology) reassigns their Medicare billing to Shirley Ann Riggs, M.D., F.A.C.P., P.A.. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Shirley Ann Riggs, M.D., F.A.C.P., P.A. was last updated on December 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.