NPPES file of Aug 9, 2026

Mary Szczurek Buns, MD

Emergency Medicine Physician · Phoenix, AZ

Mary Szczurek Buns, MD is an emergency medicine physician with a practice address in Phoenix, Arizona, and NPI 1447742960, issued on May 31, 2018. Check the license (Arizona 62784, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1447742960
Name
Mary Szczurek Buns
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
62784 AZ
R76982 AZ
Self-reported in NPPES; status is on the state search
Practice location
4212 N 16TH St, Phoenix, AZ 85016
Phone
(602) 263-1200
Enumerated
May 31, 2018
Record last updated
May 7, 2026
Fax
(602) 263-1619
Medicare enrollment
Enrolled (PECOS I20210604002739); accepts Medicare assignment
Medical or professional school
Chicago College Of Medicine And Surgery, 2018
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 4212 N 16TH St

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

  1. Andrea Aarseth, RNCritical Care Medicine Registered Nurse1235297292
  2. Deirdre Abellada, RN, PHNRegistered Nurse1710259395
  3. Joby Abraham, RNRegistered Nurse1376814046
  4. Frederick Abramek, MS, PHARMACISTPharmacist1528278736
  5. Karen AcostaRegistered Nurse1659748671
  6. Danton AdairRegistered Nurse1114387917

Verify Mary Szczurek Buns in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 62784
    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 Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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53% fewer Medicare Part D claims than the average emergency medicine physician in 2024

106 Medicare Part D claims for 76 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Mary Buns106
  2. Specialty average226

Most prescribed

  1. Ondansetron Odt24 claims
  2. Cefdinir18 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 97.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costout of 100 · 30%92.5
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 5 group practices

  1. Chandler Emergency Medical Group LLCGilbert, AZ
  2. Dhew Ind Hlth SV Hlth Svs And Mntl Hlth AdmPhoenix, AZ
  3. East Valley EP PLLCGilbert, AZ
  4. Gila River Health Care CorporationSacaton, AZ
  5. Tec Emergency Physicians OF Arizona, LLCLaveen, AZ

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

Mary Szczurek Buns among 1,494 emergency medicine physician records in Arizona

Mary Szczurek Buns, MD is one of 1,494 emergency medicine physician records with a practice address in Arizona. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 73% of them.

  • NPI issued2018 · 73% of these records are older, 23% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated2018 · median 2014 among the 828 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

394 emergency medicine physician records list a practice address in Phoenix

They are 394 of the 31,399 NPPES records with a practice address in Phoenix, and 1,494 emergency medicine physician records in Arizona.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Michael Alberti, MDPhoenix, AZ 850161386635092
  2. David Bank, MDPhoenix, AZ 850161093788531
  3. Michael Buenafe, M.D.Phoenix, AZ 850161871555961
  4. Steven Chintis, DOPhoenix, AZ 850161851364996
  5. Mary Coon, MDPhoenix, AZ 850161740234558
  6. Pamela Derouin, MDPhoenix, AZ 850161821077546
  7. Anita Eisenhart, DOPhoenix, AZ 850161649237678
  8. Amanda Grace, MDPhoenix, AZ 850161396773628

Common questions

What is Mary Szczurek Buns, MD's NPI number?

Mary Szczurek Buns, MD's National Provider Identifier (NPI) is 1447742960, issued on May 31, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Mary Szczurek Buns, MD located?

The NPPES record lists a practice address at 4212 N 16TH St, Phoenix, AZ, 85016. Phone: (602) 263-1200. Providers update this record themselves, so call before visiting.

How can I verify Mary Szczurek Buns, MD's license?

NPPES lists Arizona license number 62784, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mary Szczurek Buns, MD prescribe under Medicare Part D?

In 2024, Mary Szczurek Buns, MD had 106 Medicare Part D claims for 76 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Mary Szczurek Buns, MD's MIPS final score?

The 2023 MIPS final score is 97.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.