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William Downing, D.C.
NPI 1508039371 · Chiropractor · Phoenix, AZ
William Downing, D.C. is a Chiropractor provider in Phoenix, AZ (NPI 1508039371).
Provider details
- NPI number
- 1508039371
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- D.C.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 5097 (AZ)
Specialties & taxonomies
Chiropractic Providers
Profile Score
Detailed profile(87/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
720 E Mcdowell Rd
Phoenix, AZ 85006-2518
Phone: (602) 252-0366
Fax: (602) 252-0845
Street-level locationGet directions
Mailing address
3104 E Camelback Rd
Phoenix, AZ 85016-4502
Registry dates
- Enumerated
- 2008-04-11
- Last updated
- 2008-04-11
Frequently asked questions
- What is William Downing's NPI number?
- William Downing's National Provider Identifier (NPI) is 1508039371, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Downing's specialty?
- William Downing is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is William Downing located?
- William Downing's practice location on file with NPPES is 720 E Mcdowell Rd, Phoenix, AZ 85006-2518.
- What is William Downing's phone number?
- The practice phone number listed in the NPPES registry for William Downing is (602) 252-0366.
- Is William Downing's NPI active?
- Yes — William Downing's NPI (1508039371) is active in the NPPES registry as of the last update on 2008-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.