1. Home
  2. Directory
  3. Texas
  4. Harlingen
  5. Pediatrics
  6. NPI Profile

GUY HOWARD GRAYSON M.D. P.A.
NPI 1598705030
Pediatrics - Pediatric Hematology-Oncology in Harlingen, TX

Active since June 06, 2006
1911 LUBBOCK ST, SUITE C, HARLINGEN, TX 78550(866) 242-0010(956) 365-4423 Get Directions Write a Review

NPPES record last updated: March 25, 2008. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Guy Howard Grayson M.d. P.a. NPPES

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

GUY HOWARD GRAYSON M.D. P.A. (NPI 1598705030) is an individual pediatric hematology-oncology provider in Harlingen, Texas, licensed in Texas (J0507) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1598705030
Entity TypeIndividualMale
Primary Taxonomy2080P0207X
Provider Legal NameGUY HOWARD GRAYSONCredential: M.D. P.A.
Location Address1911 LUBBOCK ST, SUITE CHarlingen, TX 78550-8233
Mailing AddressPo Box 531030Harlingen, TX 78553-1030 · (866) 242-0010 · Fax (956) 365-4423
Phone(866) 242-0010
Fax(956) 365-4423
Sole ProprietorYes
Enumeration DateJune 6, 2006
Last NPPES UpdateMarch 25, 2008
✔ NPI 1598705030 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
License✔ Licensed in TX · J0507
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
1911 LUBBOCK ST, Harlingen, TX 78550
Open in Google Maps ↗

Other Identifiers 2

Medicare ID-Type Unspecified8A7723TX
Medicare UPINE99131TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.Insurance ›

Other Providers at the Same Location NPPES 2

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

MRS. KATHLEEN A BRACE GAUL DPM
Podiatrist
1911 LUBBOCK ST, STE B
HARLINGEN, TX 78550
Cameron County (956) 428-2442
GUY H GRAYSON MD PA
Pediatrics (Pediatric Hematology-Oncology)
1911 LUBBOCK ST, SUITE C
HARLINGEN, TX 78550
Cameron County (866) 242-0010

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 Guy Grayson's NPI number?

The NPI number for Guy Grayson is 1598705030. It was assigned to this individual provider in the NPPES registry on June 6, 2006.

Where is Guy Grayson located?

Guy Grayson practices at 1911 Lubbock St Suite C, Harlingen, TX 78550. The listed phone number is (866) 242-0010.

What is Guy Grayson's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

What insurance does Guy Grayson accept?

Health plans from Blue Cross and Blue Shield of Texas list Guy Grayson 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 Guy Grayson was last updated on March 25, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.