Registry record
- NPI
- 1013547231
- Profession
- Nurse Practitioner (NP)
- Specialty
- Family Nurse Practitioner (363LF0000X)
- Practice address
- 908 Southmore Ave Ste 100
Pasadena, TX 77502 - Phone
- 7135541091
- In the registry since
- January 16, 2020
- Last NPPES update
- March 16, 2026
- Sole proprietor
- No
- License
- AP144288 (TX)
At this location
One other provider in our data lists 908 Southmore Ave Ste 100, Pasadena as a practice address:
- Billy D Marsh, APRN
Family Nurse Practitioner · NPI 1669082723
In context
The NPI number of Guillermo Macias is 1013547231. They are a Family Nurse Practitioner in Pasadena, Texas.
Guillermo Macias is one of 99 Family Nurse Practitioners in Pasadena and one of 22,499 across Texas in our data.
The NPI has been in the federal registry for 6 years, since January 16, 2020.
Frequently asked questions
What is NPI 1013547231?
NPI 1013547231 is the 10-digit National Provider Identifier assigned to Guillermo Macias, a Family Nurse Practitioner practicing in Pasadena, Texas. The record has been in the NPPES registry since January 16, 2020.
How do I verify this provider?
Cross-check NPI 1013547231 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license AP144288 with the TX licensing board. You can also run the number through our free NPI validator to confirm its checksum.
Is this information current?
This profile reflects the June 2026 NPPES data file. NPPES lists the record's last update as March 16, 2026. We refresh our data each month when CMS publishes a new file.
Data: NPPES public registry, June 2026 file. Not medical advice. Verify independently before care or credentialing decisions. Errors in the source record can be corrected at nppes.cms.hhs.gov; see our corrections page.