NPI age
18 years
Enumerated 2007-08-29
● Active
Type 1 · Individual
Gregorio R Riera, M.D.
Riera is 1 of 29 obstetrics & gynecology providers in Houston and 1 of 171 in Texas.
Primary specialty
Obstetrics & Gynecology
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2010-11-03
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 171 active obstetrics & gynecology providers in Texas.
NPI age
18 years
≈ at median (18 yr)
State licenses
1 state
7% of peers hold multiple states
Subspecialties
1
In the 31% of peers with subspecialties
NPI lifetime · 2007 → 2026
2007-08Enumerated in NPPES
2007
2026
Where they practice
Practice location
6620 Main St, Suite 1450
Houston, TX 770302348
Mailing address
Po Box 4775
Houston, TX 772104775
Specialties
-
Obstetrics & Gynecology PrimaryA physician who specializes in diagnosis, treatment, and management of patients with obstetric conditions.
-
Obstetrics & GynecologyA physician who specializes in diagnosis, treatment, and management of patients with gynecologic conditions.
Practice context
Part of a multi-provider practice. 147 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.