Stewart W. Mason MD, Inc.
NPI 1417969643 · Obstetrics & Gynecology Physician · Fresno, CA
Stewart W. Mason MD, Inc. is a Obstetrics & Gynecology Physician organization in Fresno, CA (NPI 1417969643).
Provider details
- NPI number
- 1417969643
- Entity type
- Organization
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Stewart Mason, Physician/Owner(559) 981-2600
- License
- A72105 (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
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
Mailing address
Registry dates
- Enumerated
- 2006-08-13
- Last updated
- 2012-12-04
Frequently asked questions
- What is Stewart W. Mason MD, Inc.'s NPI number?
- Stewart W. Mason MD, Inc.'s National Provider Identifier (NPI) is 1417969643, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Stewart W. Mason MD, Inc.?
- Stewart W. Mason MD, Inc. is classified in the NPPES registry as Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Stewart W. Mason MD, Inc. located?
- Stewart W. Mason MD, Inc.'s practice location on file with NPPES is 1374 E Alluvial Ave, Fresno, CA 93720-2608.
- What is Stewart W. Mason MD, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Stewart W. Mason MD, Inc. is (559) 981-2600.
- Who is the authorized official for Stewart W. Mason MD, Inc.?
- The authorized official listed on Stewart W. Mason MD, Inc.'s NPPES record is Stewart Mason, Physician/Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Stewart W. Mason MD, Inc.'s NPI active?
- Yes — Stewart W. Mason MD, Inc.'s NPI (1417969643) is active in the NPPES registry as of the last update on 2012-12-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.