Mark Lee Westbroek, MD, PHD
Pediatrics Physician · Phoenix, AZ
Mark Lee Westbroek, MD, PHD is a pediatrics physician with a practice address in Phoenix, Arizona, and NPI 1174207443, issued on Jun 14, 2023. Check the license (Arizona 79564, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark Lee Westbroek
- Credential
- MD, PHD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 79564 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1919 E Thomas RD, Phoenix, AZ 85016
- Phone
- (602) 933-1000
- Enumerated
- Jun 14, 2023
- Record last updated
- Jul 10, 2026
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 1,309 in Arizona → Look up another NPI →
Also registered at 1919 E Thomas RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Asmaa Aamir, M.D.Diagnostic Radiology Physician1912163791
- Madeline Aaron, APRN-RNPPediatric Nurse Practitioner1851134837
- Brandon Abbott, D.O., M.P.H.Hospitalist Physician1528350139
- Jason AbbottStudent in an Organized Health Care Education/Training Program1184257958
- Monica Abd El Nour, MDPediatric Infectious Diseases Physician1760044101
- Lindsay Abel, DOStudent in an Organized Health Care Education/Training Program1750222055
Verify Mark Lee Westbroek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 79564Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $127.97
3 payments; by number, the most common kind was education; the largest payer was Astellas Pharma US Inc. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Mark Lee Westbroek among 1,309 pediatrics physician records in Arizona
Mark Lee Westbroek, MD, PHD is one of 1,309 pediatrics physician records with a practice address in Arizona. 41% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 95% of them.
- NPI issued2023 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 41% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2026 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
422 pediatrics physician records list a practice address in Phoenix
They are 422 of the 31,399 NPPES records with a practice address in Phoenix, and 1,309 pediatrics physician records in Arizona.
All 1,309 in Arizona → Every provider in Phoenix → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Paul Allen, M.D.Phoenix, AZ 850161437134681
- Grace Caputo, M.D.Phoenix, AZ 850161518920958
- Anastasia GentlesPhoenix, AZ 850161356343875
- William Haug, M.D.Phoenix, AZ 850161235115908
- Donna Holland, M.D.Phoenix, AZ 850161447210307
- Michelle Huddleston, MDPhoenix, AZ 850161164484200
- Hung Le, MDPhoenix, AZ 850161154313823
- Barbara Lednicky, MDPhoenix, AZ 850161356321962
Common questions
What is Mark Lee Westbroek, MD, PHD's NPI number?
Mark Lee Westbroek, MD, PHD's National Provider Identifier (NPI) is 1174207443, issued on Jun 14, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Mark Lee Westbroek, MD, PHD located?
The NPPES record lists a practice address at 1919 E Thomas RD, Phoenix, AZ, 85016. Phone: (602) 933-1000. Providers update this record themselves, so call before visiting.
How can I verify Mark Lee Westbroek, MD, PHD's license?
NPPES lists Arizona license number 79564, 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.
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.