Joseph G Mayo III MD Inc
NPI 1942497946 · Orthopaedic Surgery Physician · Placentia, CA
Joseph G Mayo III MD Inc is a Orthopaedic Surgery Physician organization in Placentia, CA (NPI 1942497946).
Provider details
- NPI number
- 1942497946
- Entity type
- Organization
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Joseph Mayo, Physician/Owner(714) 524-3800
- License
- G65633 (CA)
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
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
Mailing address
Registry dates
- Enumerated
- 2007-10-03
- Last updated
- 2011-03-08
Frequently asked questions
- What is Joseph G Mayo III MD Inc's NPI number?
- Joseph G Mayo III MD Inc's National Provider Identifier (NPI) is 1942497946, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Joseph G Mayo III MD Inc?
- Joseph G Mayo III MD Inc is classified in the NPPES registry as Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph G Mayo III MD Inc located?
- Joseph G Mayo III MD Inc's practice location on file with NPPES is 1275 N Rose Dr, Placentia, CA 92870-3941.
- What is Joseph G Mayo III MD Inc's phone number?
- The practice phone number listed in the NPPES registry for Joseph G Mayo III MD Inc is (714) 524-3800.
- Who is the authorized official for Joseph G Mayo III MD Inc?
- The authorized official listed on Joseph G Mayo III MD Inc's NPPES record is Joseph Mayo, Physician/Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Joseph G Mayo III MD Inc's NPI active?
- Yes — Joseph G Mayo III MD Inc's NPI (1942497946) is active in the NPPES registry as of the last update on 2011-03-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.