NPPES file of Aug 9, 2026

Sara Jean Zakem, M.D.

Radiation Oncology Physician · Tempe, AZ

Sara Jean Zakem, M.D. is a radiation oncology physician with a practice address in Tempe, Arizona, and NPI 1134582158, issued on Mar 29, 2016. Check the license (Arizona 70868, 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
1134582158
Name
Sara Jean Zakem
Credential
M.D.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License numbers
70868 AZ
MD61167145 WA
Self-reported in NPPES; status is on the state search
Practice location
7695 S Research Dr # B, Tempe, AZ 85284
Phone
(480) 278-8300
Enumerated
Mar 29, 2016
Record last updated
Aug 28, 2023
Medicaid ID
1134582158 WA
Medicare enrollment
Enrolled (PECOS I20231006001923); accepts Medicare assignment
Medical or professional school
Case Western University School Of Dental Medicine, 2016
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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Verify Sara Jean Zakem in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 70868
    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

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63% fewer Medicare Part D claims than the average radiation oncology physician in 2024

49 Medicare Part D claims for 39 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.

  1. Sara Zakem49
  2. Specialty average134

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 MIPS final score for 2023 (Medicare payment program): 83.8 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score74.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%80.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $819.69

24 payments; by number, the most common kind was food and beverage; the largest payer was Progenics Pharmaceuticals, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sara Zakem$819.69
  2. Specialty average$1,897.85

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Arizona Center For Hematology And Oncology PLCTempe, AZ

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

Sara Jean Zakem among 156 radiation oncology physician records in Arizona

Sara Jean Zakem, M.D. is one of 156 radiation oncology physician records with a practice address in Arizona. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 83% of them.

  • NPI issued2016 · 83% of these records are older, 12% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2016 · median 2003 among the 115 with a school on file
  • Record last updated2023 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Arizona

There are 156 radiation oncology physician records in Arizona.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Rezwan Chowdhury, MDTempe, AZ 852841629379565
  2. Michael Christensen, MDGilbert, AZ 852971386103661
  3. Patrick Miller, M.D.Glendale, AZ 853061023016573
  4. Murali Murty, MDGlendale, AZ 853061013184423
  5. Daniel Reed, DOGlendale, AZ 853061053386466
  6. Mark Ono, MDScottsdale, AZ 852611427022144
  7. Aaron Ambrad, MDScottsdale, AZ 852601265411961
  8. Ammoren Dohm, MDScottsdale, AZ 852601831599380

Common questions

What is Sara Jean Zakem, M.D.'s NPI number?

Sara Jean Zakem, M.D.'s National Provider Identifier (NPI) is 1134582158, issued on Mar 29, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Sara Jean Zakem, M.D. located?

The NPPES record lists a practice address at 7695 S Research Dr # B, Tempe, AZ, 85284. Phone: (480) 278-8300. Providers update this record themselves, so call before visiting.

How can I verify Sara Jean Zakem, M.D.'s license?

NPPES lists Arizona license number 70868, 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 Sara Jean Zakem, M.D. prescribe under Medicare Part D?

In 2024, Sara Jean Zakem, M.D. had 49 Medicare Part D claims for 39 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.

What is Sara Jean Zakem, M.D.'s MIPS final score?

The 2023 MIPS final score is 83.8 of 100. 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.