Shahryar Masouem, M.D.
NPI 1811166655 · Obstetrics & Gynecology Physician · Irvine, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shahryar Masouem, M.D. is a Obstetrics & Gynecology Physician provider in Irvine, CA (NPI 1811166655).
Provider details
- NPI number
- 1811166655
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A101561 (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
18 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
- 2008-02-26
- Last updated
- 2025-02-27
- Certified
- 2025-02-27
Frequently asked questions
- What is Shahryar Masouem's NPI number?
- Shahryar Masouem's National Provider Identifier (NPI) is 1811166655, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shahryar Masouem's specialty?
- Shahryar Masouem is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Shahryar Masouem located?
- Shahryar Masouem's practice location on file with NPPES is 4790 Irvine Blvd Ste 105-337, Irvine, CA 92620-1973.
- What is Shahryar Masouem's phone number?
- The practice phone number listed in the NPPES registry for Shahryar Masouem is (714) 512-2440.
- Does Shahryar Masouem accept Medicare?
- Shahryar Masouem is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shahryar Masouem's NPI active?
- Yes — Shahryar Masouem's NPI (1811166655) is active in the NPPES registry as of the last update on 2025-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.