Brenda Ernst, M.D.
Hematology & Oncology Physician · Scottsdale, AZ
Brenda Ernst, M.D. is a hematology & oncology physician with a practice address in Scottsdale, Arizona, and NPI 1134449416, issued on Jun 9, 2010. Check the license (Arizona 47384, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Brenda Ernst
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 47384 AZ
ME135060 FL
Self-reported in NPPES; status is on the state search - Practice location
- 13400 E Shea Blvd, Scottsdale, AZ 85259
- Phone
- (480) 301-8000
- Enumerated
- Jun 9, 2010
- Record last updated
- Sep 8, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 851241 AZ
- Medicare enrollment
- Enrolled (PECOS I20131205001560); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 285 in Arizona → Look up another NPI →
Also registered at 13400 E Shea Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Brenda Ernst in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 47384Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
338 Medicare Part D claims for 85 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Anastrozole57 claims
- Letrozole53 claims
- Dexamethasone32 claims
- Prochlorperazine Maleate27 claims
- Ondansetron Hcl25 claims
- Tamoxifen Citrate20 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
- Dhew Ind Hlth SV Hlth Svs And Mntl Hlth AdmPhoenix, AZ
- Mayo Clinic ArizonaScottsdale, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brenda Ernst among 285 hematology & oncology physician records in Arizona
Brenda Ernst, M.D. is one of 285 hematology & oncology physician records with a practice address in Arizona. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 66% of them.
- NPI issued2010 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2010 · median 2003 among the 229 with a school on file
- Record last updated2020 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Arizona
There are 285 hematology & oncology physician records in Arizona.
All 285 in Arizona → Every provider in Scottsdale → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Roberta Adams, M.D.Scottsdale, AZ 852591932182771
- Karen Anderson, MD PHDScottsdale, AZ 852591396712089
- Tanios Bekaii-Saab, M.D.Scottsdale, AZ 852591598770331
- Peter Bergsagel, M.D.Scottsdale, AZ 852591316920150
- Mitesh Borad, MDScottsdale, AZ 852591801850573
- Alan Bryce, M.D.Scottsdale, AZ 852591548246655
- John Camoriano, M.D.Scottsdale, AZ 852591396723425
- Thai Ho, M.D./PH.D.Scottsdale, AZ 852591326054115
Common questions
What is Brenda Ernst, M.D.'s NPI number?
Brenda Ernst, M.D.'s National Provider Identifier (NPI) is 1134449416, issued on Jun 9, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Brenda Ernst, M.D. located?
The NPPES record lists a practice address at 13400 E Shea Blvd, Scottsdale, AZ, 85259. Phone: (480) 301-8000. Providers update this record themselves, so call before visiting.
How can I verify Brenda Ernst, M.D.'s license?
NPPES lists Arizona license number 47384, 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 Brenda Ernst, M.D. prescribe under Medicare Part D?
In 2024, Brenda Ernst, M.D. had 338 Medicare Part D claims for 85 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.