NPI age
19 years
Enumerated 2006-11-20
● Active
Type 1 · Individual
DR. Maria A MacIas, MD
MacIas is 1 of 3 allergy & immunology providers in McAllen and 1 of 134 in Texas.
Primary specialty
Allergy & Immunology
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2012-06-18
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 134 active allergy & immunology providers in Texas.
NPI age
19 years
≈ at median (19 yr)
State licenses
1 state
9% of peers hold multiple states
Subspecialties
0
31% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-11Enumerated in NPPES
2006
2026
Where they practice
Practice location
2801 S M St, Ste1
McAllen, TX 785031555
Mailing address
2108 S M St, Ste1
McAllen, TX 785031555
Specialties
-
Allergy & Immunology PrimaryA physician who specializes in the diagnosis, treatment, and management of allergies.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 154594901 |
Practice context
Solo or small practice. No other active providers share this practice address in NPPES. This provider is listed as a sole proprietor.
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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.