Nation Medical Group
NPI 1528365319 · Orthopaedic Surgery Physician · Upland, CA
Nation Medical Group is a Orthopaedic Surgery Physician organization in Upland, CA (NPI 1528365319).
Provider details
- NPI number
- 1528365319
- Entity type
- Organization
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Martin Nation, Partner(714) 757-9799
- License
- G44036 (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
15 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
- 2011-02-14
- Last updated
- 2011-02-14
Frequently asked questions
- What is Nation Medical Group's NPI number?
- Nation Medical Group's National Provider Identifier (NPI) is 1528365319, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Nation Medical Group?
- Nation Medical Group is classified in the NPPES registry as Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Nation Medical Group located?
- Nation Medical Group's practice location on file with NPPES is 954 W Foothill Blvd, Upland, CA 91786-3782.
- What is Nation Medical Group's phone number?
- The practice phone number listed in the NPPES registry for Nation Medical Group is (909) 985-8230.
- Who is the authorized official for Nation Medical Group?
- The authorized official listed on Nation Medical Group's NPPES record is Martin Nation, Partner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Nation Medical Group's NPI active?
- Yes — Nation Medical Group's NPI (1528365319) is active in the NPPES registry as of the last update on 2011-02-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.