NPI age
4 years
Enumerated 2022-05-18
● Active
Type 1 · Individual
Guillermo Lopez
Lopez is 1 of 4 medical genetics, ph.d. medical genetics providers in San Antonio and 1 of 29 in Texas.
Primary specialty
Medical Genetics, Ph.D. Medical Genetics
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2022-05-18
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 29 active medical genetics, ph.d. medical genetics providers in Texas.
NPI age
4 years
↓ 14 yr below median (18 yr)
State licenses
1 state
0% of peers hold multiple states
Subspecialties
0
6% of peers hold subspecialties
NPI lifetime · 2022 → 2026
2022-05Enumerated in NPPES
2022
2026
Where they practice
Practice location
1337 Barclay St
San Antonio, TX 782077322
Mailing address
1337 Barclay St
San Antonio, TX 782077322
Specialties
-
Medical Genetics, Ph.D. Medical Genetics PrimaryA medical geneticist works in association with a medical specialist, is affiliated with a clinical genetics program, and serves as a consultant to medical and dental specialists.
Practice context
Solo or small practice. No other active providers share this practice address in NPPES. This provider is listed as a sole proprietor.
Provyx · Custom healthcare lists
Need all 29 Medical Genetics, Ph.D. Medical Genetics providers in Texas?
Get the full list as a CSV with verified work emails, direct phones, and LinkedIn URLs.
Request a quote →How to verify this provider
- 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.