Joseph Ouzounian, MD
NPI 1265503148 · Maternal & Fetal Medicine Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Ouzounian, MD is a Maternal & Fetal Medicine Physician provider in Pasadena, CA (NPI 1265503148).
Provider details
- NPI number
- 1265503148
- Entity type
- Individual
- Primary specialty
- Maternal & Fetal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G71815 (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
- 2006-11-13
- Last updated
- 2023-11-27
- Certified
- 2020-09-17
Frequently asked questions
- What is Joseph Ouzounian's NPI number?
- Joseph Ouzounian's National Provider Identifier (NPI) is 1265503148, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Ouzounian's specialty?
- Joseph Ouzounian is listed in the NPPES registry with a primary specialty of Maternal & Fetal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Ouzounian located?
- Joseph Ouzounian's practice location on file with NPPES is 39 Congress St, Pasadena, CA 91105.
- What is Joseph Ouzounian's phone number?
- The practice phone number listed in the NPPES registry for Joseph Ouzounian is (626) 796-2700.
- Does Joseph Ouzounian accept Medicare?
- Joseph Ouzounian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Ouzounian's NPI active?
- Yes — Joseph Ouzounian's NPI (1265503148) is active in the NPPES registry as of the last update on 2023-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.