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

Other providers in Harlingen