William Anthony Downing, D.C.
Chiropractor · Phoenix, AZ
William Anthony Downing, D.C. is a chiropractor with a practice address in Phoenix, Arizona, and NPI 1508039371, issued on Apr 11, 2008. Check the license (Arizona 5097, as entered in NPPES) with the Arizona board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Anthony Downing
- Credential
- D.C.
- Primary taxonomy
- Chiropractor 111N00000X
- License number
- 5097 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 720 E Mcdowell RD, Phoenix, AZ 85006
- Phone
- (602) 252-0366
- Enumerated
- Apr 11, 2008
- Record last updated
- Apr 11, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (602) 252-0845
- Entity
- Type 1 · individual
8 nearest chiropractor records → All 1,971 in Arizona → Look up another NPI →
Verify William Anthony Downing in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 5097Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Anthony Downing among 1,971 chiropractor records in Arizona
William Anthony Downing, D.C. is one of 1,971 chiropractor records with a practice address in Arizona. 14% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2008, is newer than 64% of them.
- NPI issued2008 · 64% of these records are older, 31% newer
- In a Medicare fileNo · 14% of these records are
- In the CMS Doctors and Clinicians fileNo · 35% of these records are
- Record last updated2008 · 76% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 111N00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
433 chiropractor records list a practice address in Phoenix
They are 433 of the 31,399 NPPES records with a practice address in Phoenix, and 1,971 chiropractor records in Arizona. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,971 in Arizona → Every provider in Phoenix → Chiropractor nationwide →
The 8 chiropractor records with the nearest ZIP codes
- James Adkins, D.C.Phoenix, AZ 850061922118801
- Rodney Cohodas, D.C.Phoenix, AZ 850061104871185
- Jayson CzaplickiPhoenix, AZ 850061477537462
- David Herman, D.C.Phoenix, AZ 850061710180674
- Edward Kozar, DCPhoenix, AZ 850061770718520
- Jihad Sakr, D.C.Phoenix, AZ 850061194921775
- Paul Trim, DCPhoenix, AZ 850061073785523
- Mark Wireman, DCPhoenix, AZ 850061164639159
Common questions
What is William Anthony Downing, D.C.'s NPI number?
William Anthony Downing, D.C.'s National Provider Identifier (NPI) is 1508039371, issued on Apr 11, 2008. An NPI identifies a provider in billing; it is not a license.
Where is William Anthony Downing, D.C. located?
The NPPES record lists a practice address at 720 E Mcdowell RD, Phoenix, AZ, 85006. Phone: (602) 252-0366. Providers update this record themselves, so call before visiting.
How can I verify William Anthony Downing, D.C.'s license?
NPPES lists Arizona license number 5097, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity 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. 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.