Olga Maria Olivares-Herrera, MD
Family Medicine Physician · McAllen, TX
Olga Maria Olivares-Herrera, MD is a family medicine physician with a practice address in McAllen, Texas, and NPI 1437193836, issued on Jun 15, 2006. Check the license (Texas M2431, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Olga Maria Olivares-Herrera
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- M2431 TX
Self-reported in NPPES; status is on the state search - Practice location
- 110 E Savannah Ave, McAllen, TX 78503
- Phone
- (956) 971-8800
- Enumerated
- Jun 15, 2006
- Record last updated
- Oct 31, 2023
- Fax
- (956) 971-8804
- Medicaid ID
- 180578001 TX
- Medicare enrollment
- Enrolled (PECOS I20060502000609); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 110 E Savannah Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Olga Maria Olivares-Herrera in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M2431Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% more Medicare Part D claims than the average family medicine physician in 2024
3,784 Medicare Part D claims for 203 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 96 claims were for opioids.
Most prescribed
- Atorvastatin Calcium217 claims
- Levothyroxine Sodium211 claims
- Omeprazole113 claims
- Escitalopram Oxalate105 claims
- Furosemide97 claims
- Memantine Hcl97 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Mcallen Hospitalist Group PLLCEdinburg, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Olga Maria Olivares-Herrera among 11,119 family medicine physician records in Texas
Olga Maria Olivares-Herrera, MD is one of 11,119 family medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1993 · median 2004 among the 7,095 with a school on file
- Record last updated2023 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
121 family medicine physician records list a practice address in McAllen
They are 121 of the 3,518 NPPES records with a practice address in McAllen, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in McAllen → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Charles Austin, MDMcAllen, TX 785031205879590
- Oscar Cortes, MDMcAllen, TX 785031164459756
- Andrew Dela Garza, M.D.McAllen, TX 785031043265671
- Carmen Gomez Fitzpatrick, M.D.McAllen, TX 785031427056381
- Enrique Griego, M.D.McAllen, TX 785031164432506
- Mario Guerra, M.D.McAllen, TX 785031760587760
- Sunand Kallumadanda, MDMcAllen, TX 785031588712848
- Alfredo Lopez, MDMcAllen, TX 785031750307831
Common questions
What is Olga Maria Olivares-Herrera, MD's NPI number?
Olga Maria Olivares-Herrera, MD's National Provider Identifier (NPI) is 1437193836, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Olga Maria Olivares-Herrera, MD located?
The NPPES record lists a practice address at 110 E Savannah Ave, McAllen, TX, 78503. Phone: (956) 971-8800. Providers update this record themselves, so call before visiting.
How can I verify Olga Maria Olivares-Herrera, MD's license?
NPPES lists Texas license number M2431, 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.
How much does Olga Maria Olivares-Herrera, MD prescribe under Medicare Part D?
In 2024, Olga Maria Olivares-Herrera, MD had 3,784 Medicare Part D claims for 203 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.