Rex Harris, MD
Family Medicine Physician · Waco, TX
Rex Harris, MD is a family medicine physician with a practice address in Waco, Texas, and NPI 1861804627, issued on May 28, 2014. Check the license (Texas BP10051104, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Rex Harris
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- BP10051104 TX
E-10437 AR
Self-reported in NPPES; status is on the state search - Practice location
- 1600 Providence Dr, Waco, TX 76707
- Phone
- (254) 313-4200
- Enumerated
- May 28, 2014
- Record last updated
- Jul 21, 2026
- Fax
- (254) 313-4326
- Medicare enrollment
- Enrolled (PECOS I20180924001855); accepts Medicare assignment
- Medical or professional school
- University Of Arkansas College Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 1600 Providence Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Rex Harris in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license BP10051104Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.1 times the Medicare Part D claims of the average family medicine physician in 2024
14,385 Medicare Part D claims for 855 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. 679 claims were for opioids.
Most prescribed
- Pantoprazole Sodium532 claims
- Levothyroxine Sodium494 claims
- Atorvastatin Calcium450 claims
- Lisinopril397 claims
- Amlodipine Besylate374 claims
- Losartan Potassium330 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.
Industry payments in 2024: $333.91
18 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- St. Francis House Nwa, Inc.Kansas, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rex Harris among 11,119 family medicine physician records in Texas
Rex Harris, 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 2014, is newer than 73% of them.
- NPI issued2014 · 73% of these records are older, 25% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2014 · median 2004 among the 7,095 with a school on file
- Record last updated2026 · 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).
190 family medicine physician records list a practice address in Waco
They are 190 of the 3,295 NPPES records with a practice address in Waco, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in Waco → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- William Chop, MDWaco, TX 767071639156425
- John Dietrick, MDWaco, TX 767071982681649
- John Gill, MDWaco, TX 767071578540183
- Roland Goertz, MDWaco, TX 767071225015092
- Jackson Griggs, MDWaco, TX 767071861479818
- Rita Haws, MDWaco, TX 767071043297005
- Burritt Hess, M.D.Waco, TX 767071902866569
- Michael Jahrmarkt, MDWaco, TX 767071598742108
Common questions
What is Rex Harris, MD's NPI number?
Rex Harris, MD's National Provider Identifier (NPI) is 1861804627, issued on May 28, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Rex Harris, MD located?
The NPPES record lists a practice address at 1600 Providence Dr, Waco, TX, 76707. Phone: (254) 313-4200. Providers update this record themselves, so call before visiting.
How can I verify Rex Harris, MD's license?
NPPES lists Texas license number BP10051104, 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 Rex Harris, MD prescribe under Medicare Part D?
In 2024, Rex Harris, MD had 14,385 Medicare Part D claims for 855 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.