NPPES file of Aug 9, 2026

Derrick William Dvorak, MD

Emergency Medicine Physician · Rowlett, TX

Derrick William Dvorak, MD is an emergency medicine physician with a practice address in Rowlett, Texas, and NPI 1164607446, issued on Jan 4, 2008. Check the license (Texas P3527, 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
1164607446
Name
Derrick William Dvorak
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
P3527 TX
01068417A IN
7526 SD
Self-reported in NPPES; status is on the state search
Practice location
6800 Scenic Dr, Rowlett, TX 75088
Phone
(972) 520-8000
Enumerated
Jan 4, 2008
Record last updated
Feb 27, 2026
Medicare enrollment
Enrolled (PECOS I20141018000129); accepts Medicare assignment
Medical or professional school
Sanford School Of Medicine Of University Of South Dakota, 2002
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 6800 Scenic Dr

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

  1. Junaid Ahsan, DOHospitalist Physician1780978684
  2. Halli Carr, DNP, APRN, ACNP-BCAcute Care Nurse Practitioner1952585929
  3. Sadie ColeEmergency Medicine Physician1003252651
  4. Larry Dencklau, DOEmergency Medicine Physician1497736375
  5. Lin Du, D.O.Emergency Medicine Physician1154477016
  6. George Early, DOEmergency Medicine Physician1346313418

Verify Derrick William Dvorak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license P3527
    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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56% fewer Medicare Part D claims than the average emergency medicine physician in 2024

99 Medicare Part D claims for 72 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Derrick Dvorak99
  2. Specialty average226

Most prescribed

  1. Cephalexin13 claims
  2. Cyclobenzaprine Hcl12 claims
  3. Sulfamethoxazole-Trimethoprim11 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 2 group practices

  1. Small Hospital Innovations LLCMesquite, TX
  2. Texas Medicine Resources, LLPPlano, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Derrick William Dvorak among 4,885 emergency medicine physician records in Texas

Derrick William Dvorak, 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 2008, is newer than 41% of them.

  • NPI issued2008 · 41% of these records are older, 55% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2002 · median 2013 among the 2,779 with a school on file
  • Record last updated2026 · 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).

10 emergency medicine physician records list a practice address in Rowlett

They are 10 of the 734 NPPES records with a practice address in Rowlett, and 4,885 emergency medicine physician records in Texas.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Sadie ColeRowlett, TX 750881003252651
  2. Larry Dencklau, DORowlett, TX 750881497736375
  3. Lin Du, D.O.Rowlett, TX 750881154477016
  4. George Early, DORowlett, TX 750881346313418
  5. Brian Fromm, M.D.Rowlett, TX 750881750743316
  6. Thai Ho, MDRowlett, TX 750881346829215
  7. Jonathan Holt, M.D.Rowlett, TX 750881558472530
  8. Constance Lorenz, DORowlett, TX 750881467525188

Common questions

What is Derrick William Dvorak, MD's NPI number?

Derrick William Dvorak, MD's National Provider Identifier (NPI) is 1164607446, issued on Jan 4, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Derrick William Dvorak, MD located?

The NPPES record lists a practice address at 6800 Scenic Dr, Rowlett, TX, 75088. Phone: (972) 520-8000. Providers update this record themselves, so call before visiting.

How can I verify Derrick William Dvorak, MD's license?

NPPES lists Texas license number P3527, 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 Derrick William Dvorak, MD prescribe under Medicare Part D?

In 2024, Derrick William Dvorak, MD had 99 Medicare Part D claims for 72 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.