Walter Mazen, M.D.
NPI 1649292624 · Obstetrics Physician · Chico, CA
Walter Mazen, M.D. is a Obstetrics Physician provider in Chico, CA (NPI 1649292624).
Provider details
- NPI number
- 1649292624
- Entity type
- Individual
- Primary specialty
- Obstetrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G45960 (CA)
Specialties & taxonomies
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
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
- 2006-07-25
- Last updated
- 2023-03-07
Frequently asked questions
- What is Walter Mazen's NPI number?
- Walter Mazen's National Provider Identifier (NPI) is 1649292624, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walter Mazen's specialty?
- Walter Mazen is listed in the NPPES registry with a primary specialty of Obstetrics Physician (Allopathic & Osteopathic Physicians).
- Where is Walter Mazen located?
- Walter Mazen's practice location on file with NPPES is 1665 Esplanade, Chico, CA 95926-3312.
- What is Walter Mazen's phone number?
- The practice phone number listed in the NPPES registry for Walter Mazen is (530) 895-0423.
- Is Walter Mazen's NPI active?
- Yes — Walter Mazen's NPI (1649292624) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.