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CHRISTOPHER C. NINH MD, INC.
NPI 1467614735
Orthopaedic Surgery in Irvine, CA

Active since June 27, 2008
17305 VON KARMAN AVE STE 100, IRVINE, CA 92614(714) 432-9990(714) 432-9988 Get Directions Write a Review

NPPES record last updated: February 19, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 9, 2024, Mar 17, 2018, Oct 27, 2017 (3 updates tracked since 2017).

About Christopher C. Ninh Md, Inc. NPPES

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

CHRISTOPHER C. NINH MD, INC. (NPI 1467614735) is a healthcare organization registered as an orthopaedic surgery in Irvine, California and active in the NPI registry since June 2008. The organization maintains 4 additional practice locations and lists Christopher C. Ninh, President, as its authorized official.

NPPES Registry Identity

NPI1467614735
Entity TypeOrganization
Primary Taxonomy207X00000X
Legal Business NameCHRISTOPHER C. NINH MD, INC.
Location Address17305 VON KARMAN AVE STE 100Irvine, CA 92614-0903
Mailing Address17305 Von Karman Ave Ste 100Irvine, CA 92614-0903 · (714) 432-9990 · Fax (714) 432-9988
Phone(714) 432-9990
Fax(714) 432-9988
Organization SubpartNo
Authorized OfficialChristopher C. NinhPresident · (714) 876-4876
Enumeration DateJune 27, 2008
Last NPPES UpdateFebruary 19, 20263 updates tracked since enumeration
NPPES CertifiedFebruary 19, 2026
✔ NPI 1467614735 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
License✔ Licensed in CA · A98528
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
Also ListedOrthopaedic Surgery · Orthopaedic Surgery of the SpineTaxonomy 207XS0117X · License 20A11544 (CA)
Also ListedPhysical TherapistTaxonomy 225100000X · License PT38861 (CA)
17305 VON KARMAN AVE STE 100, Irvine, CA 92614
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Secondary Practice Locations 4

Location 110760 WARNER AVE STE 102FOUNTAIN VALLEY, CA 92708-3845 · Phone (714) 432-9990 · Fax (714) 432-9988
Location 22095 S Atlantic Blvd Fl 2Monterey Park, CA 91754-6303 · Phone (714) 432-9990
Location 315191 BEACH BLVDWESTMINSTER, CA 92683-6203 · Phone (714) 432-9990 · Fax (714) 432-9988
Location 418725 Gale Ave Ste 130City Of Industry, CA 91748-1358 · Phone (714) 432-9990

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 MULTIPLE 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)

Christopher C. Ninh Md, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

5

Medicare enrollment records show 5 clinicians reassign Medicare billing to Christopher C. Ninh MD, Inc., which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.

Clinicians, nearest first (5)

Christopher Ninh, MD
Orthopedic Surgery
NPI 1700096393
17305 VON KARMAN AVE STE 100
Irvine, CA 92614
(714) 432-9990
✔ PECOS✔ Accepts MedicareSame address
Massoud Arbabzadeh, MD
Interventional Radiology
NPI 1841245149
12827 HARBOR BLVD STE G
Garden Grove, CA 92840
(323) 973-2323
✔ PECOS✔ Accepts Medicare7.4 mi
Ahmad Hussain, M.D.
Vascular Surgery
NPI 1598999823
315 N 3RD AVE STE 300
Covina, CA 91723
(626) 337-3500
✔ PECOS✔ Accepts Medicare28 mi
Anuj Varshney, M.D.
Orthopedic Surgery
NPI 1518177104
125 MALL DR STE 303
Hanford, CA 93230
(559) 537-0313
✔ PECOS✔ Accepts Medicare209 mi
Thomas Nguyen, M.D.
Orthopedic Surgery
NPI 1811307069
2101 ELM ST N
Fargo, ND 58102
(701) 239-3700
✔ PECOS✔ Accepts Medicare1,431 mi

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 Christopher C. Ninh MD, Inc.'s NPI number?

The NPI number for Christopher C. Ninh MD, Inc. is 1467614735. It was assigned to this organization in the NPPES registry on June 27, 2008.

Where is Christopher C. Ninh MD, Inc. located?

Christopher C. Ninh MD, Inc. is located at 17305 Von Karman Ave Ste 100, Irvine, CA 92614. The listed phone number is (714) 432-9990.

What is Christopher C. Ninh MD, Inc.'s specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Christopher C. Ninh MD, Inc. enrolled in Medicare?

Yes. Christopher C. Ninh MD, Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Christopher C. Ninh MD, Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians in 3 Medicare specialties reassign their Medicare billing to Christopher C. Ninh MD, 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. The largest specialties are Orthopedic Surgery (3), Interventional Radiology (1) and Vascular Surgery (1). Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Christopher C. Ninh MD, Inc. was last updated on February 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.