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JOIE ZEYNEP GUNER M.D.
NPI 1396164422
Obstetrics & Gynecology in Los Angeles, CA

Active since April 16, 2014PECOS Enrolled
1127 WILSHIRE BLVD STE 400, LOS ANGELES, CA 90017(213) 975-9990 Get Directions Write a Review

NPPES record last updated: May 11, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 11, 2022, Sep 9, 2021 (2 updates tracked since 2021).

About Joie Zeynep Guner M.d. NPPES

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

JOIE ZEYNEP GUNER M.D. (NPI 1396164422) is an individual obstetrics & gynecology provider in Los Angeles, California, licensed in California (A171711) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1396164422
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameJOIE ZEYNEP GUNERCredential: M.D.
Location Address1127 WILSHIRE BLVD STE 400Los Angeles, CA 90017-3900
Mailing AddressPo Box 31309Los Angeles, CA 90031-0309 · (323) 442-5100
Phone(213) 975-9990
Sole ProprietorYes
Enumeration DateApril 16, 2014
Last NPPES UpdateMay 11, 20222 updates tracked since enumeration
NPPES CertifiedMay 11, 2022
✔ NPI 1396164422 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 · A171711✔ Licensed in TX · BP10049684
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.
1127 WILSHIRE BLVD STE 400, Los Angeles, CA 90017
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Joie Zeynep Guner 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 Joie Guner 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 San Francisco
347 mi
Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
NPI 1346329380 (415) 353-2161
Ucsf Medical Group Business Services
347 mi
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group
NPI 1477624104 (415) 353-2808

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 90017 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 2

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

PHYSICAL REHABILITATION INSTITUE OF LOS ANGELES PRILA
Clinic/Center (Physical Therapy)
1127 WILSHIRE BLVD STE 400
LOS ANGELES, CA 90017
Los Angeles County (213) 482-1177
MOLLY QUINN MD
Obstetrics & Gynecology
1127 WILSHIRE BLVD STE 400
LOS ANGELES, CA 90017
Los Angeles County (213) 975-9990

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 Joie Guner's NPI number?

The NPI number for Joie Guner is 1396164422. It was assigned to this individual provider in the NPPES registry on April 16, 2014.

Where is Joie Guner located?

Joie Guner practices at 1127 Wilshire Blvd Ste 400, Los Angeles, CA 90017. The listed phone number is (213) 975-9990.

What is Joie Guner's specialty?

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

Is Joie Guner enrolled in Medicare?

Yes. Joie Guner is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Joie Guner's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joie Guner reassigns Medicare benefits to 2 organizations: University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, 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 Joie Guner'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 Joie Guner was last updated on May 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.