Alexander Williams, MD
Emergency Medicine Physician · Phoenix, AZ
Alexander Williams, MD is an emergency medicine physician with a practice address in Phoenix, Arizona, and NPI 1942534565, issued on Sep 29, 2009. Check the license (Arizona R71493, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Alexander Williams
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- R71493 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 2601 E Roosevelt St, Phoenix, AZ 85008
- Phone
- (602) 344-5808
- Enumerated
- Sep 29, 2009
- Record last updated
- Sep 29, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120706000383); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 2009
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,494 in Arizona → Look up another NPI →
Also registered at 2601 E Roosevelt St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amjed Abdel Al, MDStudent in an Organized Health Care Education/Training Program1043151400
- Shelley Abdel-Sayed, M.D.Anesthesiology Physician1609079490
- Baha Abdelrahim, DOStudent in an Organized Health Care Education/Training Program1205531795
- Yasir Abdulqader, MDHospitalist Physician1184955395
- Iman Aboalam, PHARMDPharmacist1477422384
- Norberto Adame, MDEmergency Medicine Physician1144276213
Verify Alexander Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license R71493Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% fewer Medicare Part D claims than the average emergency medicine physician in 2024
169 Medicare Part D claims for 127 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 34 claims were for opioids.
Most prescribed
- Oxycodone-Acetaminophen23 claims
- Cephalexin22 claims
- Ondansetron Odt17 claims
- Amoxicillin-Clavulanate Potass16 claims
- Prednisone11 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $469.12
22 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 12,335 providers of this specialty with any payment received $953.79 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.
Bills Medicare through one group practice
- Global Physician Network LLC Series ISarasota, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander Williams among 1,494 emergency medicine physician records in Arizona
Alexander Williams, MD 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 2009, is newer than 48% of them.
- NPI issued2009 · 48% of these records are older, 50% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2009 · median 2014 among the 828 with a school on file
- Record last updated2009 · 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).
394 emergency medicine physician records list a practice address in Phoenix
They are 394 of the 31,399 NPPES records with a practice address in Phoenix, and 1,494 emergency medicine physician records in Arizona.
All 1,494 in Arizona → Every provider in Phoenix → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Norberto Adame, MDPhoenix, AZ 850081144276213
- Patricia Bayless, MDPhoenix, AZ 850081447206230
- Paul Blackburn, DOPhoenix, AZ 850081679527089
- Patrick Connell, MDPhoenix, AZ 850081932212834
- Michael Epter, DOPhoenix, AZ 850081992845887
- Bruce Horwood, MDPhoenix, AZ 850081801842406
- Kenneth Jackimczyk, MDPhoenix, AZ 850081598704058
- Eric Katz, MDPhoenix, AZ 850081619994175
Common questions
What is Alexander Williams, MD's NPI number?
Alexander Williams, MD's National Provider Identifier (NPI) is 1942534565, issued on Sep 29, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Williams, MD located?
The NPPES record lists a practice address at 2601 E Roosevelt St, Phoenix, AZ, 85008. Phone: (602) 344-5808. Providers update this record themselves, so call before visiting.
How can I verify Alexander Williams, MD's license?
NPPES lists Arizona license number R71493, 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 Alexander Williams, MD prescribe under Medicare Part D?
In 2024, Alexander Williams, MD had 169 Medicare Part D claims for 127 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Alexander Williams, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.