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William Holland, M.D.
NPI 1114087293 · Internal Medicine Physician · Phoenix, AZ
William Holland, M.D. is a Internal Medicine Physician provider in Phoenix, AZ (NPI 1114087293).
Provider details
- NPI number
- 1114087293
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 10652 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
4616 N 51st Ave
Ste. 203b
Phoenix, AZ 85031-1721
Phone: (623) 846-5407
Fax: (623) 845-0890
Street-level locationGet directions
Mailing address
4616 N 51st Ave
Phoenix, AZ 85031-1721
Registry dates
- Enumerated
- 2006-12-11
- Last updated
- 2014-06-13
Frequently asked questions
- What is William Holland's NPI number?
- William Holland's National Provider Identifier (NPI) is 1114087293, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Holland's specialty?
- William Holland is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Holland located?
- William Holland's practice location on file with NPPES is 4616 N 51st Ave, Phoenix, AZ 85031-1721.
- What is William Holland's phone number?
- The practice phone number listed in the NPPES registry for William Holland is (623) 846-5407.
- Is William Holland's NPI active?
- Yes — William Holland's NPI (1114087293) is active in the NPPES registry as of the last update on 2014-06-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.