Guy Grayson, M.D. P.A.
NPI 1598705030 · Pediatric Hematology & Oncology Physician · Harlingen, TX
Guy Grayson, M.D. P.A. is a Pediatric Hematology & Oncology Physician provider in Harlingen, TX (NPI 1598705030).
Provider details
- NPI number
- 1598705030
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D. P.A.
- Sex
- Male
- Sole proprietor
- Yes
- License
- J0507 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-06
- Last updated
- 2008-03-25
Frequently asked questions
- What is Guy Grayson's NPI number?
- Guy Grayson's National Provider Identifier (NPI) is 1598705030, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Guy Grayson's specialty?
- Guy Grayson is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Guy Grayson located?
- Guy Grayson's practice location on file with NPPES is 1911 Lubbock St, Harlingen, TX 78550-8233.
- What is Guy Grayson's phone number?
- The practice phone number listed in the NPPES registry for Guy Grayson is (866) 242-0010.
- Is Guy Grayson's NPI active?
- Yes — Guy Grayson's NPI (1598705030) is active in the NPPES registry as of the last update on 2008-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.