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DR. SHAHRYAR MASOUEM M.D.
NPI 1811166655
Obstetrics & Gynecology in Irvine, CA

Active since February 26, 2008PECOS Enrolled
4790 IRVINE BLVD STE 105-337, IRVINE, CA 92620(714) 512-2440(949) 264-8221 Get Directions Write a Review

NPPES record last updated: June 17, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Feb 27, 2025, Oct 6, 2020, Nov 11, 2017 and 2 more (5 updates tracked since 2016).

About Dr. Shahryar Masouem M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SHAHRYAR MASOUEM M.D. (NPI 1811166655) is an individual obstetrics & gynecology provider in Irvine, California, licensed in California (A101561) and active in the NPI registry since February 2008. He is enrolled in Medicare PECOS and maintains a secondary practice location in Charlotte.

NPPES Registry Identity

NPI1811166655
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. SHAHRYAR MASOUEMCredential: M.D.
Location Address4790 IRVINE BLVD STE 105-337Irvine, CA 92620-1973
Mailing Address4790 Irvine Blvd Ste 105-337Irvine, CA 92620-1973 · (714) 512-2440 · Fax (949) 264-8221
Phone(714) 512-2440
Fax(949) 264-8221
Sole ProprietorNo
Enumeration DateFebruary 26, 2008
Last NPPES UpdateJune 17, 20265 updates tracked since enumeration
NPPES CertifiedJune 17, 2026
✔ NPI 1811166655 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Licenses✔ Licensed in CA · A101561✔ Licensed in NC · 2026-02749
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
4790 IRVINE BLVD STE 105-337, Irvine, CA 92620
Open in Google Maps ↗

Secondary Practice Location 1

Location 1129 Greenwich RdCharlotte, NC 28211-2313 · Phone (704) 266-6454 · Fax (618) 360-7524

Other Identifiers 1

Medicaid1811166655CA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Shahryar Masouem M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Shahryar Masouem reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Healthcare Partners Affiliates Medical Group
4.1 mi
Addiction Medicine
14591 NEWPORT AVE
Tustin, CA 92780
  • Reassigned Medicare billing, California enrollment
  • 2,052 clinicians in this Medicare group
NPI 1891981502 (714) 442-4864
Magella Medical Group, Inc.
26 mi
Maternal & Fetal Medicine
2888 LONG BEACH BLVD STE 400
Long Beach, CA 90806
  • Reassigned Medicare billing, California enrollment
  • 191 clinicians in this Medicare group
NPI 1376640086 (562) 997-8510
Ouma Health Professional Limited Liability Company
1,194 mi
Maternal & Fetal Medicine
3267 BEE CAVES RD STE 107-334
Austin, TX 78746
  • Reassigned Medicare billing, Texas enrollment
  • 4 clinicians in this Medicare group
NPI 1023755030 (512) 688-6504

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92620 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Shahryar Masouem's NPI number?

The NPI number for Shahryar Masouem is 1811166655. It was assigned to this individual provider in the NPPES registry on February 26, 2008.

Where is Shahryar Masouem located?

Shahryar Masouem practices at 4790 Irvine Blvd Ste 105-337, Irvine, CA 92620. The listed phone number is (714) 512-2440.

What is Shahryar Masouem's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Shahryar Masouem enrolled in Medicare?

Yes. Shahryar Masouem is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Shahryar Masouem's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Shahryar Masouem reassigns Medicare benefits to 3 organizations: Healthcare Partners Affiliates Medical Group (Tustin, CA), Magella Medical Group, Inc. (Long Beach, CA) and Ouma Health Professional Limited Liability Company (Austin, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Shahryar Masouem's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Shahryar Masouem accept?

Health plans from Anthem Blue Cross and Blue Shield list Shahryar Masouem as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Shahryar Masouem was last updated on June 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.