Judy Messer, M.D.
Emergency Medicine Physician · Chandler, AZ
Judy Messer, M.D. is an emergency medicine physician with a practice address in Chandler, Arizona, and NPI 1407800980, issued on May 20, 2006. Check the license (Arizona 28991, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Judy Messer
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 28991 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 475 S Dobson RD, Chandler, AZ 85224
- Phone
- (480) 917-1648
- Enumerated
- May 20, 2006
- Record last updated
- Apr 22, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicaid ID
- 618217-05 AZ
- Medicare enrollment
- Enrolled (PECOS I20250320001608); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 1998
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,494 in Arizona → Look up another NPI →
Also registered at 475 S Dobson RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Robert Baldwin, M.D.Diagnostic Ultrasound Physician1134178833
- Robert Barrali, M.D.Emergency Medical Services (Emergency Medicine) Physician1699720789
- Gregory Berman, M.D.Emergency Medicine Physician1184670317
- Jay Boyer, MDDiagnostic Ultrasound Physician1174560379
- Carol Brennan, PA-CMedical Physician Assistant1003895426
Verify Judy Messer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 28991Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average emergency medicine physician in 2024
17 Medicare Part D claims for 13 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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 one group practice
- Yampa Valley Medical CenterSteamboat Spr, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Judy Messer among 1,494 emergency medicine physician records in Arizona
Judy Messer, 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 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 62% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated1998 · median 2014 among the 828 with a school on file
- Record last updated2010 · 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.
All 1,494 in Arizona → Every provider in Chandler → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Gregory Berman, M.D.Chandler, AZ 852241184670317
- Todd Davis, D.O.Chandler, AZ 852241457307282
- Robert Laney, M.D.Chandler, AZ 852241447233168
- Evan Leibner, M.D.Chandler, AZ 852241699712299
- John Linder, M.D.Chandler, AZ 852241467408203
- Gregory Massoud, D.O.Chandler, AZ 852241790715522
- Erik Mattison, M.D.Chandler, AZ 852241639116668
- Paul McHale, M.D.Chandler, AZ 852241215974258
Common questions
What is Judy Messer, M.D.'s NPI number?
Judy Messer, M.D.'s National Provider Identifier (NPI) is 1407800980, issued on May 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Judy Messer, M.D. located?
The NPPES record lists a practice address at 475 S Dobson RD, Chandler, AZ, 85224. Phone: (480) 917-1648. Providers update this record themselves, so call before visiting.
How can I verify Judy Messer, M.D.'s license?
NPPES lists Arizona license number 28991, 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 Judy Messer, M.D. prescribe under Medicare Part D?
In 2024, Judy Messer, M.D. had 17 Medicare Part D claims for 13 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.