DR DIANA TRAN-KIM CORP.
NPI 1750971446
Obstetrics & Gynecology in Fountain Valley, CA

Q: What is Dr Diana Tran-Kim Corp.'s NPI number?

The NPI number for Dr Diana Tran-Kim Corp. is 1750971446. It was assigned to this organization in the NPPES registry on January 26, 2021.

Q: What is Dr Diana Tran-Kim Corp.'s specialty?

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

Active since January 26, 2021

11160 WARNER AVE STE 301, FOUNTAIN VALLEY, CA 92708(714) 210-5665 Get Directions Write a Review

NPPES record last updated: October 25, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr Diana Tran-kim Corp. NPPES

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

DR DIANA TRAN-KIM CORP. (NPI 1750971446) is a healthcare organization registered as an obstetrics & gynecology in Fountain Valley, California and active in the NPI registry since January 2021. The organization lists Diana M Tran-kim, Do, as its authorized official.

NPPES Registry Identity

NPI1750971446

Entity TypeOrganization

Primary Taxonomy207V00000X

Legal Business NameDR DIANA TRAN-KIM CORP.

Location Address11160 WARNER AVE STE 301Fountain Valley, CA 92708-4055

Mailing Address11160 Warner Ave Ste 301Fountain Valley, CA 92708-4055 · (714) 210-5665

Phone(714) 210-5665

Organization SubpartNo

Authorized OfficialDiana M Tran-kimDo · (714) 210-5665

Enumeration DateJanuary 26, 2021

Last NPPES UpdateOctober 25, 2021

NPPES CertifiedOctober 25, 2021

✔ NPI 1750971446 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

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.

11160 WARNER AVE STE 301, Fountain Valley, CA 92708

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr Diana Tran-kim Corp. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by October 31, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date

StateCaliforniaEnrollment IDO20211021001108Non-DME Part B · Clinic/Group PracticeDue dateOctober 31, 2026

Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Dr Diana Tran-Kim Corp., which bills Medicare for the services this clinician delivers.

Clinician (1)

Diana Tran-Kim, D.O.

Obstetrics/Gynecology

NPI 1366867327

11160 WARNER AVE STE 301
Fountain Vly, CA 92708

(714) 210-5665

✔ PECOSSame address

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

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 Dr Diana Tran-Kim Corp.'s NPI number?

The NPI number for Dr Diana Tran-Kim Corp. is 1750971446. It was assigned to this organization in the NPPES registry on January 26, 2021.

Where is Dr Diana Tran-Kim Corp. located?

Dr Diana Tran-Kim Corp. is located at 11160 Warner Ave Ste 301, Fountain Valley, CA 92708. The listed phone number is (714) 210-5665.

What is Dr Diana Tran-Kim Corp.'s specialty?

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

Is Dr Diana Tran-Kim Corp. enrolled in Medicare?

Yes. Dr Diana Tran-Kim Corp. is registered in the Medicare PECOS enrollment system.

When is Dr Diana Tran-Kim Corp.'s Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by October 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Dr Diana Tran-Kim Corp.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Obstetrics/Gynecology) reassigns their Medicare billing to Dr Diana Tran-Kim Corp.. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Dr Diana Tran-Kim Corp. was last updated on October 25, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.