NPPES file of Aug 9, 2026

Bess Catherine Stillman, M.D.

Emergency Medicine Physician · Scottsdale, AZ

Bess Catherine Stillman, M.D. is an emergency medicine physician with a practice address in Scottsdale, Arizona, and NPI 1548553993, issued on May 18, 2011. Check the license (Arizona 56261, 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
1548553993
Name
Bess Catherine Stillman
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
56261 AZ
275779 NY
Self-reported in NPPES; status is on the state search
Practice location
13400 E Shea Blvd, Scottsdale, AZ 85259
Phone
(480) 301-6874
Enumerated
May 18, 2011
Record last updated
May 5, 2022
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 13400 E Shea Blvd

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

  1. Rawad Abbas, MDNeurological Surgery Physician1255028825
  2. Abdelmohaymin Abdalla, MDPulmonary Disease Physician1871081505
  3. Hesham Mubarak Abdalla, M.B.B.S.Internal Medicine Physician1013696111
  4. Mahmoud Abdelnabi, MDCardiovascular Disease Physician1548934714
  5. Haidar Abdul-Muhsin, M.B.CH.B.Urology Physician1356755250
  6. Ali Abdulsahib, MDInfectious Disease Physician1417535030

Verify Bess Catherine Stillman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 56261
    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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72% fewer Medicare Part D claims than the average emergency medicine physician in 2024

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

  1. Bess Stillman63
  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.

The practice group's MIPS final score for 2023 (Medicare payment program): 78.6 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 score69.1
  2. Costout of 100 · 30%59.6
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Bess Catherine Stillman among 1,494 emergency medicine physician records in Arizona

Bess Catherine Stillman, M.D. 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 2011, is newer than 53% of them.

  • NPI issued2011 · 53% of these records are older, 45% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 55% of these records are
  • Record last updated2022 · 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).

Emergency Medicine Physician providers in Arizona

There are 1,494 emergency medicine physician records in Arizona.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Shari Brand, M.D.Scottsdale, AZ 852591104809136
  2. Wyatt Decker, M.D.Scottsdale, AZ 852591063491272
  3. Bob Dietrich, D.OScottsdale, AZ 852591518911536
  4. Kevin Drechsel, MDScottsdale, AZ 852591154379055
  5. Erik Gauharou, M.DScottsdale, AZ 852591740233121
  6. Michael Haley, MDScottsdale, AZ 852591396772984
  7. Kevin Hubbard, DOScottsdale, AZ 852591407890601
  8. Kurtis Judson, M.D.Scottsdale, AZ 852591194705897

Common questions

What is Bess Catherine Stillman, M.D.'s NPI number?

Bess Catherine Stillman, M.D.'s National Provider Identifier (NPI) is 1548553993, issued on May 18, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Bess Catherine Stillman, M.D. located?

The NPPES record lists a practice address at 13400 E Shea Blvd, Scottsdale, AZ, 85259. Phone: (480) 301-6874. Providers update this record themselves, so call before visiting.

How can I verify Bess Catherine Stillman, M.D.'s license?

NPPES lists Arizona license number 56261, 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 Bess Catherine Stillman, M.D. prescribe under Medicare Part D?

In 2024, Bess Catherine Stillman, M.D. had 63 Medicare Part D claims for 45 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Bess Catherine Stillman, M.D.'s MIPS final score?

The 2023 MIPS final score is 78.6 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.