NPI age
19 years
Enumerated 2006-06-06
● Active
Type 1 · Individual
Guy Howard Grayson, M.D. P.A.
Grayson is 1 of 2 pediatrics providers in Harlingen and 1 of 321 in Texas.
Primary specialty
Pediatrics
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2008-03-25
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 321 active pediatrics providers in Texas.
NPI age
19 years
↑ 2 yr above median (17 yr)
State licenses
1 state
27% of peers hold multiple states
Subspecialties
0
50% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-06Enumerated in NPPES
2006
2026
Where they practice
Practice location
1911 Lubbock St, Suite C
Harlingen, TX 785508233
Mailing address
Po Box 531030
Harlingen, TX 785531030
Specialties
-
Pediatrics PrimaryA pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 134968009 |
Practice context
Part of a multi-provider practice. 2 other active providers share this practice address in NPPES.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.