NPPES file of Aug 9, 2026

William O. Blackstone, M.D.

Emergency Medicine Physician · Houston, TX

William O. Blackstone, M.D. is an emergency medicine physician with a practice address in Houston, Texas, and NPI 1487639258, issued on Dec 14, 2005. Check the license (Texas E2984, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1487639258
Name
William O. Blackstone
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
E2984 TX
Self-reported in NPPES; status is on the state search
Practice location
8850 Long Point RD, Houston, TX 77055
Phone
(713) 722-3775
Enumerated
Dec 14, 2005
Record last updated
Nov 11, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(713) 722-3731
Medicaid ID
135667709 TX
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 8850 Long Point RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Gail Edlund, R.D.Metabolic Nutrition Registered Dietitian1033210695
  2. Elliott Huffard, CRNACertified Registered Nurse Anesthetist1770567273
  3. Valentino Imperial, MDPain Medicine (Anesthesiology) Physician1376538397
  4. Irene Madriz, CRNACertified Registered Nurse Anesthetist1821083825
  5. Gurdeep Othee, M.D.Emergency Medicine Physician1548219165
  6. Aruna Parikh, M.D.Anatomic Pathology & Clinical Pathology Physician1386706190

Verify William O. Blackstone in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license E2984    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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80% fewer Medicare Part D claims than the average emergency medicine physician in 2024

45 Medicare Part D claims for 37 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. William Blackstone45
  2. Specialty average226

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.

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 818 in Houston → All 4,885 in Texas → Every provider in Houston →

Other emergency medicine physician records in Texas

  1. Gordon Aalund, MDDallas, TX1740265263
  2. Kevin AbadiAustin, TX1104403443
  3. Kelechi AbarikwuHouston, TX1316527609
  4. George Abatso, MDArlington, TX1265417786
  5. Lailah Abawi, D.O.Frisco, TX1023274164
  6. Tazeen AbbasCollege Station, TX1700346962
  7. Abraham Abbott, MDBellaire, TX1023197175
  8. Mira Abdel Sattar, DOIrving, TX1417586728
  9. Mohammed Abdel-Al, M.D., M.S., M.SCHouston, TX1568810679
  10. Yousef Abdel-Raziq, MDTyler, TX1215432695

Common questions

What is William O. Blackstone, M.D.'s NPI number?

William O. Blackstone, M.D.'s National Provider Identifier (NPI) is 1487639258, issued on Dec 14, 2005. An NPI identifies a provider in billing; it is not a license.

Where is William O. Blackstone, M.D. located?

The NPPES record lists a practice address at 8850 Long Point RD, Houston, TX, 77055. Phone: (713) 722-3775. Providers update this record themselves, so call before visiting.

How can I verify William O. Blackstone, M.D.'s license?

NPPES lists Texas license number E2984, 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. Blackstone, M.D. prescribe under Medicare Part D?

In 2024, William O. Blackstone, M.D. had 45 Medicare Part D claims for 37 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.