William D. Harper, MD
Emergency Medicine Physician · El Paso, TX
William D. Harper, MD is an emergency medicine physician with a practice address in El Paso, Texas, and NPI 1922060425, issued on Apr 3, 2006. Check the license (Texas K5988, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- William D. Harper
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- K5988 TX
94-244 NM
Self-reported in NPPES; status is on the state search - Practice location
- 3800 N Mesa St Ste A2, El Paso, TX 79902
- Phone
- (915) 490-9301
- Enumerated
- Apr 3, 2006
- Record last updated
- Dec 8, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040409000350); accepts Medicare assignment
- Medical or professional school
- Texas Tech University Health Science Center School Of Medicine, 1993
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Also registered at 3800 N Mesa St Ste A2
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Krista PowellPsychologist1801298906
Verify William D. Harper in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license K5988Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% more Medicare Part D claims than the average emergency medicine physician in 2024
370 Medicare Part D claims for 184 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 21 claims were for opioids.
Most prescribed
- Ibuprofen62 claims
- Ondansetron Hcl27 claims
- Doxycycline Hyclate24 claims
- Ciprofloxacin Hcl23 claims
- Acetaminophen-Codeine21 claims
- Prednisone20 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
- Emergency Services OF Texas PAEl Paso, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William D. Harper among 4,885 emergency medicine physician records in Texas
William D. Harper, MD is one of 4,885 emergency medicine physician records with a practice address in Texas. 83% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 67% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1993 · median 2013 among the 2,779 with a school on file
- Record last updated2015 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
179 emergency medicine physician records list a practice address in El Paso
They are 179 of the 11,091 NPPES records with a practice address in El Paso, and 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in El Paso → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Emma Almanza, MDEl Paso, TX 799021184683419
- Armando Beltran, M.D.El Paso, TX 799021649267295
- Kenneth Berumen, M.D.El Paso, TX 799021588661243
- Suresh Chavda, M.D.El Paso, TX 799021689627846
- Randy Goldstein, M.D.El Paso, TX 799021487644498
- Sergio Ibarra, MDEl Paso, TX 799021124067228
- Paul Mallett, MDEl Paso, TX 799021700809803
- Azalia Martinez, M.D., FAAPEl Paso, TX 799021497716344
Common questions
What is William D. Harper, MD's NPI number?
William D. Harper, MD's National Provider Identifier (NPI) is 1922060425, issued on Apr 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William D. Harper, MD located?
The NPPES record lists a practice address at 3800 N Mesa St Ste A2, El Paso, TX, 79902. Phone: (915) 490-9301. Providers update this record themselves, so call before visiting.
How can I verify William D. Harper, MD's license?
NPPES lists Texas license number K5988, 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 William D. Harper, MD prescribe under Medicare Part D?
In 2024, William D. Harper, MD had 370 Medicare Part D claims for 184 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.