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CHAO & TAN MEDICAL GROUP, INC.
NPI 1841201449
Obstetrics & Gynecology in Barstow, CA

Active since August 10, 2006
705 E VIRGINIA WAY STE I, BARSTOW, CA 92311(760) 255-3900(760) 255-3980 Get Directions Write a Review

NPPES record last updated: May 30, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Chao & Tan Medical Group, Inc. NPPES

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

CHAO & TAN MEDICAL GROUP, INC. (NPI 1841201449) is a healthcare organization registered as an obstetrics & gynecology in Barstow, California and active in the NPI registry since August 2006. The organization lists Likang Chao, President, as its authorized official.

NPPES Registry Identity

NPI1841201449
Entity TypeOrganization
Primary Taxonomy207V00000X
Legal Business NameCHAO & TAN MEDICAL GROUP, INC.
Location Address705 E VIRGINIA WAY STE IBarstow, CA 92311-3955
Mailing AddressPo Box 626Barstow, CA 92312-0626 · (760) 255-3900 · Fax (760) 255-3980
Phone(760) 255-3900
Fax(760) 255-3980
Organization SubpartNo
Authorized OfficialLikang ChaoPresident · (760) 255-3900
Enumeration DateAugust 10, 2006
Last NPPES UpdateMay 30, 2025
NPPES CertifiedMay 30, 2025
✔ NPI 1841201449 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.
705 E VIRGINIA WAY STE I, Barstow, CA 92311
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Other Identifiers 1

MedicaidGR0094840CA

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Chao & Tan Medical Group, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Chao & Tan Medical Group, Inc., which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Likang Chao, MD
Obstetrics/Gynecology
NPI 1841380490
705 E VIRGINIA WAY STE I
Barstow, CA 92311
(760) 255-3900
✔ PECOSSame address
Susan Tan, MD
Obstetrics/Gynecology
NPI 1558451112
705 E VIRGINIA WAY STE I
Barstow, CA 92311
(760) 255-3900
✔ 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 Chao & Tan Medical Group, Inc.'s NPI number?

The NPI number for Chao & Tan Medical Group, Inc. is 1841201449. It was assigned to this organization in the NPPES registry on August 10, 2006.

Where is Chao & Tan Medical Group, Inc. located?

Chao & Tan Medical Group, Inc. is located at 705 E Virginia Way Ste I, Barstow, CA 92311. The listed phone number is (760) 255-3900.

What is Chao & Tan Medical Group, Inc.'s specialty?

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

Is Chao & Tan Medical Group, Inc. enrolled in Medicare?

Yes. Chao & Tan Medical Group, Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Chao & Tan Medical Group, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Obstetrics/Gynecology, reassign their Medicare billing to Chao & Tan Medical Group, Inc.. 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. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Chao & Tan Medical Group, Inc. was last updated on May 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.