William L. Phelps II MD PC
NPI 1063464014 · Geriatric Medicine (Internal Medicine) Physician · Green Valley, AZ
William L. Phelps II MD PC is a Geriatric Medicine (Internal Medicine) Physician organization in Green Valley, AZ (NPI 1063464014).
Provider details
- NPI number
- 1063464014
- Entity type
- Organization
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Phelps, President(520) 625-2950
- License
- 24727 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
Mailing address
Registry dates
- Enumerated
- 2006-05-17
- Last updated
- 2007-11-15
Frequently asked questions
- What is William L. Phelps II MD PC's NPI number?
- William L. Phelps II MD PC's National Provider Identifier (NPI) is 1063464014, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William L. Phelps II MD PC?
- William L. Phelps II MD PC is classified in the NPPES registry as Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is William L. Phelps II MD PC located?
- William L. Phelps II MD PC's practice location on file with NPPES is 101 W. Duval Rd., Green Valley, AZ 85614-5280.
- What is William L. Phelps II MD PC's phone number?
- The practice phone number listed in the NPPES registry for William L. Phelps II MD PC is (520) 625-2950.
- Who is the authorized official for William L. Phelps II MD PC?
- The authorized official listed on William L. Phelps II MD PC's NPPES record is William Phelps, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William L. Phelps II MD PC's NPI active?
- Yes — William L. Phelps II MD PC's NPI (1063464014) is active in the NPPES registry as of the last update on 2007-11-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.