1. Home
  2. Directory
  3. California
  4. Santa Ana
  5. Obstetrics Gynecology
  6. NPI Profile

DR. JAY S.H. MASSERMAN M.D.
NPI 1598743510
Obstetrics & Gynecology in Santa Ana, CA

Active since January 09, 2006PECOS Enrolled
800 N MAIN ST, SANTA ANA, CA 92701(657) 282-6355 Get Directions Write a Review

NPPES record last updated: March 14, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Jay S.h. Masserman M.d. NPPES

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

DR. JAY S.H. MASSERMAN M.D. (NPI 1598743510) is an individual obstetrics & gynecology provider in Santa Ana, California, licensed in California (G33687) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Fountain Valley.

NPPES Registry Identity

NPI1598743510
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. JAY S.H. MASSERMANCredential: M.D.
Location Address800 N MAIN STSanta Ana, CA 92701-3576
Mailing Address200 S Manchester Ave Ste 300Orange, CA 92868-3219 · (714) 456-2986
Phone(657) 282-6355
Sole ProprietorNo
Enumeration DateJanuary 9, 2006
Last NPPES UpdateMarch 14, 2023
NPPES CertifiedMarch 14, 2023
✔ NPI 1598743510 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · G33687
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.
800 N MAIN ST, Santa Ana, CA 92701
Open in Google Maps ↗

Secondary Practice Location 1

Location 111180 Warner AveFountain Valley, CA 92708-7501 · Phone (714) 556-0536 · Fax (714) 435-9640

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Jay S.h. Masserman 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

2

Medicare enrollment records show Jay Masserman reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of California Irvine
Same address
Federally Qualified Health Center (FQHC)
800 N MAIN ST
Santa Ana, CA 92701
  • Reassigned Medicare billing, California enrollment
  • 255 clinicians in this Medicare group
NPI 1851325906 (714) 456-6785
Regents Of The University Of California
2.9 mi
Obstetrics & Gynecology
101 CITY DRIVE SOUTH, BLDG 56 SUITE 800
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 149 clinicians in this Medicare group
NPI 1356304034 (714) 456-6431

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 92701 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.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

REGENTS OF THE UNIVERSITY OF CALIFORNIA
Family Medicine
800 N MAIN ST
SANTA ANA, CA 92701
Orange County (714) 456-8068
EMILY GARCIA
Family Medicine
800 N MAIN ST
SANTA ANA, CA 92701
Orange County (657) 282-6355
UNIVERSITY OF CALIFORNIA IRVINE
Pharmacy (Clinic Pharmacy)
800 N MAIN ST
SANTA ANA, CA 92701
Orange County (714) 456-6785
KAREN BUI MD
Student in an Organized Health Care Education/Training Program
800 N MAIN ST
SANTA ANA, CA 92701
Orange County (657) 282-6355
QUANG ANH LA PHAM
Student in an Organized Health Care Education/Training Program
800 N MAIN ST
SANTA ANA, CA 92701
Orange County (714) 480-2440
SUZANNE NGUYEN MD
Family Medicine
800 N MAIN ST
SANTA ANA, CA 92701
Orange County (714) 456-7002
DR. LYNETTE BUI ANDERSON DO
Family Medicine
800 N MAIN ST
SANTA ANA, CA 92701
Orange County (657) 282-6355
DR. HEMESH MAHESH PATEL D.O.
Family Medicine
800 N MAIN ST
SANTA ANA, CA 92701
Orange County (714) 456-7002

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 Jay Masserman's NPI number?

The NPI number for Jay Masserman is 1598743510. It was assigned to this individual provider in the NPPES registry on January 9, 2006.

Where is Jay Masserman located?

Jay Masserman practices at 800 N Main St, Santa Ana, CA 92701. The listed phone number is (657) 282-6355.

What is Jay Masserman's specialty?

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

Is Jay Masserman enrolled in Medicare?

Yes. Jay Masserman is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Jay Masserman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jay Masserman reassigns Medicare benefits to 2 organizations: University Of California Irvine (Santa Ana, CA) and Regents Of The University Of California (Orange, CA). 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 Jay Masserman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Jay Masserman was last updated on March 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.