Gregorio R. Riera, M.D.
Obstetrics Physician · Houston, TX
Gregorio R. Riera, M.D. is an obstetrics physician with a practice address in Houston, Texas, and NPI 1821282278, issued on Aug 29, 2007. Check the license (Texas M7573, as entered in NPPES) on the Texas Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Gregorio R. Riera
- Credential
- M.D.
- Primary taxonomy
- Obstetrics Physician 207VX0000X
- License number
- M7573 TX
Self-reported in NPPES; status is on the state search - Practice location
- 6620 Main St, Houston, TX 77030
- Phone
- (713) 798-7500
- Enumerated
- Aug 29, 2007
- Record last updated
- Nov 3, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (713) 798-3487
- Entity
- Type 1 · individual
Also registered at 6620 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kjersti Aagaard-Tillery, MDMaternal & Fetal Medicine Physician1033299938
- Michelle Agrons, M.D.Diagnostic Radiology Physician1700206166
- Aymer Al-Mutairi, M.DFamily Medicine Physician1861712481
- Mahboob Alam, M.D.Interventional Cardiology Physician1831342641
- Saleema Ali, AGACNP-BCAcute Care Nurse Practitioner1679076103
- Gilad Amiel, M.D.Urology Physician1164593869
Verify Gregorio R. Riera in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M7573Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Obstetrics Physician providers in Texas
There are 103 obstetrics physician records in Texas. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other obstetrics physician records in Texas
- Amira Alkhatib, DOBeaumont, TX1255860177
- Samantha Alvarado, MDSan Antonio, TX1932894862
- Brittney Anders, M.D.Dallas, TX1538556808
- Marquita Anderson, M.D.Mansfield, TX1922323864
- Julia Armstrong, MDCorpus Christi, TX1508444167
- Jennifer Arzola, M.D.San Antonio, TX1285831594
- Kingsley Asumugha, M.D.Houston, TX1578576237
- Michael Balat, M.D.Houston, TX1558719658
- Rachel Bank, MDAustin, TX1679275937
- Christina Belle-Henry, M.D.Lubbock, TX1841216454
Common questions
What is Gregorio R. Riera, M.D.'s NPI number?
Gregorio R. Riera, M.D.'s National Provider Identifier (NPI) is 1821282278, issued on Aug 29, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gregorio R. Riera, M.D. located?
The NPPES record lists a practice address at 6620 Main St, Houston, TX, 77030. Phone: (713) 798-7500. Providers update this record themselves, so call before visiting.
How can I verify Gregorio R. Riera, M.D.'s license?
NPPES lists Texas license number M7573, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.