George W. Landrum, MD
Internal Medicine Physician · Phoenix, AZ
George W. Landrum, MD is an internal medicine physician with a practice address in Phoenix, Arizona, and NPI 1164510319, issued on Oct 11, 2006. Check the license (Arizona 20340, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- George W. Landrum
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20340 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 4729 E Union Hills Dr, Phoenix, AZ 85050
- Phone
- (602) 482-5444
- Enumerated
- Oct 11, 2006
- Record last updated
- Mar 9, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (602) 482-5666
- Medicaid ID
- 054479 AZ
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 4729 E Union Hills Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vincent Cariati, M.D.Internal Medicine Physician1558459776
Verify George W. Landrum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 20340Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
127 Medicare Part D claims for 58 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of 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.
George W. Landrum among 2,853 internal medicine physician records in Arizona
George W. Landrum, 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
- Franc BrodarPhoenix, AZ 850501467446831
- Vincent Cariati, M.D.Phoenix, AZ 850501558459776
- Jaclyn Cronin, D.O.Phoenix, AZ 850501992237184
- Nitin Dhiman, M.D.Phoenix, AZ 850501992012637
- Siobhan Faenza, MDPhoenix, AZ 850501013477900
- Michelle Gabbert, DOPhoenix, AZ 850501295956639
- Andrea Goldberg, MDPhoenix, AZ 850501013189166
- Omair Hasan, M.D.Phoenix, AZ 850501740420041
Common questions
What is George W. Landrum, MD's NPI number?
George W. Landrum, MD's National Provider Identifier (NPI) is 1164510319, issued on Oct 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is George W. Landrum, MD located?
The NPPES record lists a practice address at 4729 E Union Hills Dr, Phoenix, AZ, 85050. Phone: (602) 482-5444. Providers update this record themselves, so call before visiting.
How can I verify George W. Landrum, MD's license?
NPPES lists Arizona license number 20340, 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 George W. Landrum, MD prescribe under Medicare Part D?
In 2024, George W. Landrum, MD had 127 Medicare Part D claims for 58 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.