William O'Malley, MD
Emergency Medicine Physician · Houston, TX
William O'Malley, MD is an emergency medicine physician with a practice address in Houston, Texas, and NPI 1275528002, issued on Sep 19, 2005. Check the license (Texas J8075, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- William O'Malley
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- J8075 TX
Self-reported in NPPES; status is on the state search - Practice location
- 10655 Steepletop Dr, Houston, TX 77065
- Phone
- (281) 897-3150
- Enumerated
- Sep 19, 2005
- Record last updated
- Oct 20, 2011 (not updated in 15 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Also registered at 10655 Steepletop Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William O'Malley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license J8075Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% more Medicare Part D claims than the average emergency medicine physician in 2024
330 Medicare Part D claims for 215 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 26 claims were for opioids.
Most prescribed
- Albuterol Sulfate Hfa73 claims
- Methylprednisolone43 claims
- Amoxicillin-Clavulanate Potass30 claims
- Cephalexin25 claims
- Acetaminophen-Codeine22 claims
- Azithromycin17 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: $184.36
2 payments; by number, the most common kind was food and beverage; the largest payer was Ceribell, Inc. The 12,335 providers of this specialty with any payment received $953.79 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.
William O'Malley among 4,885 emergency medicine physician records in Texas
William O'Malley, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2011 · 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).
818 emergency medicine physician records list a practice address in Houston
They are 818 of the 61,221 NPPES records with a practice address in Houston, and 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in Houston → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Michael Gonzalez, M.D.Jersey Village, TX 770651740265982
- David Hall, M.D.Houston, TX 770651447278288
- Shivangi Patel, M.D.Houston, TX 770651679952741
- Bobby Chu, M.D.Houston, TX 770621942214036
- Anthony Fasanella, D.O.Houston, TX 770701649384322
- Gregory Hall, D.O.Houston, TX 770701972617660
- Douglas Harrison, D.O.Houston, TX 770701720192420
- Patricia Klap, M.D.Houston, TX 770701841276656
Common questions
What is William O'Malley, MD's NPI number?
William O'Malley, MD's National Provider Identifier (NPI) is 1275528002, issued on Sep 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William O'Malley, MD located?
The NPPES record lists a practice address at 10655 Steepletop Dr, Houston, TX, 77065. Phone: (281) 897-3150. Providers update this record themselves, so call before visiting.
How can I verify William O'Malley, MD's license?
NPPES lists Texas license number J8075, 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 O'Malley, MD prescribe under Medicare Part D?
In 2024, William O'Malley, MD had 330 Medicare Part D claims for 215 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.