Roberto Zamudio-Millan, MD
Internal Medicine Physician · Phoenix, AZ
Roberto Zamudio-Millan, MD is an internal medicine physician with a practice address in Phoenix, Arizona, and NPI 1245344167, issued on Aug 18, 2006. Check the license (Arizona 14156, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Roberto Zamudio-Millan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 14156 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 500 W Thomas RD, Phoenix, AZ 85013
- Phone
- (877) 809-5092
- Enumerated
- Aug 18, 2006
- Record last updated
- Jul 8, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (602) 266-8358
- Medicaid ID
- 230029 AZ
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 500 W Thomas RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Roberto Zamudio-Millan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 14156Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average internal medicine physician in 2024
530 Medicare Part D claims for 111 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Atorvastatin Calcium50 claims
- Amlodipine Besylate32 claims
- Lisinopril27 claims
- Metformin Hcl27 claims
- Tamsulosin Hcl25 claims
- Levothyroxine Sodium19 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.
Roberto Zamudio-Millan among 2,853 internal medicine physician records in Arizona
Roberto Zamudio-Millan, MD is one of 2,853 internal medicine physician records with a practice address in Arizona. 75% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2016 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
695 internal medicine physician records list a practice address in Phoenix
They are 695 of the 31,399 NPPES records with a practice address in Phoenix, and 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Phoenix → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Matthew Hemstreet, M.D.Phoenix, AZ 850131275553182
- Steve Ibrahim, D.O.Phoenix, AZ 850131174634547
- Jasmine Kelley, MDPhoenix, AZ 850131568444644
- Caroline Kim Kupfer, M.D.Phoenix, AZ 850131083643480
Common questions
What is Roberto Zamudio-Millan, MD's NPI number?
Roberto Zamudio-Millan, MD's National Provider Identifier (NPI) is 1245344167, issued on Aug 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Roberto Zamudio-Millan, MD located?
The NPPES record lists a practice address at 500 W Thomas RD, Phoenix, AZ, 85013. Phone: (877) 809-5092. Providers update this record themselves, so call before visiting.
How can I verify Roberto Zamudio-Millan, MD's license?
NPPES lists Arizona license number 14156, 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 Roberto Zamudio-Millan, MD prescribe under Medicare Part D?
In 2024, Roberto Zamudio-Millan, MD had 530 Medicare Part D claims for 111 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.