Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Guy Howard Grayson, MDPA

Individual provider Pediatric Hematology & Oncology Physician · NPI 1598705030

Guy Howard Grayson, MDPA is a Pediatric Hematology & Oncology Physician in Harlingen, Texas. Practices as a sole proprietor. Licensed in Texas.

Licensed in
TX
In the registry since
2006

Practice location Address checks out

1911 Lubbock St Ste C
Harlingen, TX 78550-8233
Phone: (866) 242-0010
Fax: (956) 365-4423
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Hematology & Oncology Physician (primary) Taxonomy 2080P0207X · Licence J0507 (TX)

Record details

NPI number1598705030
Entity typeIndividual (Type 1)
GenderMale
Credentials MDPA
Sole proprietorYes
NPI enumeratedJune 6, 2006
Last updated in NPPESMarch 25, 2008
Mailing addressPo Box 531030, Harlingen, TX 78553-1030

Other providers in Harlingen