NPPES file of Aug 9, 2026

Stephen William Bretz, MD

Emergency Medical Services (Emergency Medicine) Physician · Renton, WA

Stephen William Bretz, MD is an emergency medical services (emergency medicine) physician with a practice address in Renton, Washington, and NPI 1174581573, issued on May 3, 2006. Check the license on the Washington Medical Commission; 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
1174581573
Name
Stephen William Bretz
Credential
MD
Primary taxonomy
Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
License number
A061172 CA
Self-reported in NPPES; status is on the state search
Practice location
400 S 43RD St, Renton, WA 98055
Phone
(425) 251-3440
Enumerated
May 3, 2006
Record last updated
Oct 22, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20061021000015); accepts Medicare assignment
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 400 S 43RD St

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

  1. Jesse Abbott Klafter, M.D.Hospitalist Physician1225394935
  2. Sujata Acharya, PTPhysical Therapist1972737310
  3. Meghna Agarwal, MDHospitalist Physician1649859182
  4. Makeda Agonafer, M.D.Neurology Physician1215371935
  5. Jenny Alden, SLPSpeech-Language Pathologist1659691186
  6. Anjella Ysabel Alejo, PTPhysical Therapist1477378115

Verify Stephen William Bretz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical CommissionCheck 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 Washington license search

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58% fewer Medicare Part D claims than the average emergency medical services (emergency medicine) physician in 2024

124 Medicare Part D claims for 75 beneficiaries, against an average of 292 among the 1,653 providers of this specialty who prescribed in Part D. 21 claims were for opioids.

  1. Stephen Bretz124
  2. Specialty average292

Most prescribed

  1. Hydrocodone-Acetaminophen19 claims
  2. Cephalexin16 claims
  3. Ondansetron Odt15 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

  1. Eastside Emergency Physicians PLLCEverett, WA

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

Stephen William Bretz among 91 emergency medical services (emergency medicine) physician records in Washington

Stephen William Bretz, MD is one of 91 emergency medical services (emergency medicine) physician records with a practice address in Washington. 64% 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 0% of them.

  • NPI issued2006 · 0% of these records are older, 35% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileYes · 46% of these records are
  • Graduated1995 · median 1999 among the 42 with a school on file
  • Record last updated2007 · 74% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0004X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medical Services (Emergency Medicine) Physician providers in Washington

There are 91 emergency medical services (emergency medicine) physician records in Washington.

The 8 emergency medical services (emergency medicine) physician records with the nearest ZIP codes

  1. Cameron Buck, MDRenton, WA 980551649213216
  2. Shannon Corrigan, M.D.Renton, WA 980551801819743
  3. Larry Kadeg, MDRenton, WA 980551326056771
  4. Karl Kaufmann, MDRenton, WA 980551154339539
  5. Scott Milne, MDRenton, WA 980551790897932
  6. Maurice Montag, MDRenton, WA 980551538271788
  7. Peter Schmidt, MDRenton, WA 980551134169683
  8. Russell Spies, MDRenton, WA 980551831201086

Common questions

What is Stephen William Bretz, MD's NPI number?

Stephen William Bretz, MD's National Provider Identifier (NPI) is 1174581573, issued on May 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephen William Bretz, MD located?

The NPPES record lists a practice address at 400 S 43RD St, Renton, WA, 98055. Phone: (425) 251-3440. Providers update this record themselves, so call before visiting.

How can I verify Stephen William Bretz, MD's license?

Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Stephen William Bretz, MD prescribe under Medicare Part D?

In 2024, Stephen William Bretz, MD had 124 Medicare Part D claims for 75 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 292. 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.