W Maier Inc
NPI 1376781765 · Preventive Medicine/Occupational Environmental Medicine Physician · Lake Arrowhead, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
W Maier Inc is a Preventive Medicine/Occupational Environmental Medicine Physician organization in Lake Arrowhead, CA (NPI 1376781765).
Provider details
- NPI number
- 1376781765
- Entity type
- Organization
- Primary specialty
- Preventive Medicine/Occupational Environmental Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Walter Maier, President(909) 337-3661
- License
- G82114 (CA)
Specialties & taxonomies
- Preventive Medicine/Occupational Environmental Medicine PhysicianPrimary2083P0500XLicense G082114 (CA)
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
Other names (DBA / former)
- Other name
- Walter M. Maier M.D.
Registry dates
- Enumerated
- 2009-01-23
- Last updated
- 2009-06-26
Frequently asked questions
- What is W Maier Inc's NPI number?
- W Maier Inc's National Provider Identifier (NPI) is 1376781765, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is W Maier Inc?
- W Maier Inc is classified in the NPPES registry as Preventive Medicine/Occupational Environmental Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is W Maier Inc located?
- W Maier Inc's practice location on file with NPPES is 29099 Hospital Road, Lake Arrowhead, CA 92352.
- What is W Maier Inc's phone number?
- The practice phone number listed in the NPPES registry for W Maier Inc is (909) 337-3661.
- Does W Maier Inc accept Medicare?
- W Maier Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for W Maier Inc?
- The authorized official listed on W Maier Inc's NPPES record is Walter Maier, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is W Maier Inc's NPI active?
- Yes — W Maier Inc's NPI (1376781765) is active in the NPPES registry as of the last update on 2009-06-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.