Rubin Harris, MD
Internal Medicine Physician · San Marcos, TX
Rubin Harris, MD is an internal medicine physician with a practice address in San Marcos, Texas, and NPI 1386619765, issued on Feb 21, 2006. Check the license (Texas H6837, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Rubin Harris
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- H6837 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1301 Wonder World Dr, San Marcos, TX 78666
- Phone
- (512) 342-0455
- Enumerated
- Feb 21, 2006
- Record last updated
- Jul 1, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (512) 342-0460
- Medicaid ID
- 133363505 TX
- Medicare enrollment
- Enrolled (PECOS I20120626000349); accepts Medicare assignment
- Medical or professional school
- Meharry Medical College School Of Medicine, 1983
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 1301 Wonder World Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jaime Acosta, CSFASurgical Assistant1922972694
- Raka Amin, MDInternal Medicine Physician1437576493
- Jose Ayala, MDInternal Medicine Physician1114960663
- Chad Benninghoff, NPFamily Nurse Practitioner1912256256
- Shyra BerishSpeech-Language Pathologist1235656364
- Jessica Best, MDEmergency Medicine Physician1679833354
Verify Rubin Harris in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license H6837Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
131 Medicare Part D claims for 99 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Cefdinir31 claims
- Levofloxacin11 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
- Hcc OF Laredo LLCLaredo, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rubin Harris among 9,175 internal medicine physician records in Texas
Rubin Harris, 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% 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 updated2008 · 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).
13 internal medicine physician records list a practice address in San Marcos
They are 13 of the 1,003 NPPES records with a practice address in San Marcos, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in San Marcos → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Raka Amin, MDSan Marcos, TX 786661437576493
- Jose Ayala, MDSan Marcos, TX 786661114960663
- Larry Beville, NPSan Marcos, TX 786661770897498
- Emilio Carranco, M.D.San Marcos, TX 786661730341660
- Donna Dolan, MDSan Marcos, TX 786661831134824
- Gregory Moore, MDSan Marcos, TX 786661417958760
- Cody Nichols, M.D.San Marcos, TX 786661295766038
- Thomas Parker, M.D.San Marcos, TX 786661962558056
Common questions
What is Rubin Harris, MD's NPI number?
Rubin Harris, MD's National Provider Identifier (NPI) is 1386619765, issued on Feb 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Rubin Harris, MD located?
The NPPES record lists a practice address at 1301 Wonder World Dr, San Marcos, TX, 78666. Phone: (512) 342-0455. Providers update this record themselves, so call before visiting.
How can I verify Rubin Harris, MD's license?
NPPES lists Texas license number H6837, 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 Rubin Harris, MD prescribe under Medicare Part D?
In 2024, Rubin Harris, MD had 131 Medicare Part D claims for 99 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.