Richard Edward Hannigan, MD
Internal Medicine Physician · San Antonio, TX
Richard Edward Hannigan, MD is an internal medicine physician with a practice address in San Antonio, Texas, and NPI 1801887047, issued on Nov 4, 2005. Check the license (Texas G5145, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Richard Edward Hannigan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G5145 TX
Self-reported in NPPES; status is on the state search - Practice location
- 12447 Network Blvd Ste 109, San Antonio, TX 78249
- Phone
- (210) 258-4625
- Enumerated
- Nov 4, 2005
- Record last updated
- Sep 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (877) 479-3805
- Medicare enrollment
- Enrolled (PECOS I20070228000430); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At San Antonio, 1983
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 12447 Network Blvd Ste 109
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Adrian Gonzales, M.D.Hospitalist Physician1649532615
Verify Richard Edward Hannigan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license G5145Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average internal medicine physician in 2024
374 Medicare Part D claims for 138 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 40 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen23 claims
- Amlodipine Besylate18 claims
- Pantoprazole Sodium18 claims
- Metoprolol Tartrate15 claims
- Lisinopril13 claims
- Cefdinir11 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
- Wellmed Networks, Inc.San Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Richard Edward Hannigan among 9,175 internal medicine physician records in Texas
Richard Edward Hannigan, MD is one of 9,175 internal 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1983 · median 2004 among the 6,088 with a school on file
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
657 internal medicine physician records list a practice address in San Antonio
They are 657 of the 37,749 NPPES records with a practice address in San Antonio, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in San Antonio → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Carlos Diaz Velez, MDShavano Park, TX 782491316061377
- Fatima Hamid, MDSan Antonio, TX 782491225442387
- Kevin Helmrick, MDSan Antonio, TX 782491851279152
- Sakshi Malhotra, MDShavano Park, TX 782491487808317
- Khusro Rashid, M.DSan Antonio, TX 782491134274368
- Vajeeha Sadi-Ali, M.DSan Antonio, TX 782491366730962
Common questions
What is Richard Edward Hannigan, MD's NPI number?
Richard Edward Hannigan, MD's National Provider Identifier (NPI) is 1801887047, issued on Nov 4, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Richard Edward Hannigan, MD located?
The NPPES record lists a practice address at 12447 Network Blvd Ste 109, San Antonio, TX, 78249. Phone: (210) 258-4625. Providers update this record themselves, so call before visiting.
How can I verify Richard Edward Hannigan, MD's license?
NPPES lists Texas license number G5145, 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 Richard Edward Hannigan, MD prescribe under Medicare Part D?
In 2024, Richard Edward Hannigan, MD had 374 Medicare Part D claims for 138 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.