CHRISTOPHER C. NINH MD
NPI 1700096393
Orthopaedic Surgery in Irvine, CA

Q: What is Christopher Ninh's NPI number?

The NPI number for Christopher Ninh is 1700096393. It was assigned to this individual provider in the NPPES registry on May 23, 2007.

Q: What is Christopher Ninh's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Christopher Ninh 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 5 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.

Active since May 23, 2007PECOS EnrolledAccepts Medicare Assignment

14.93/100

CMS Quality Rating

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: August 09, 2026.

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About Christopher C. Ninh Md NPPES

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

CHRISTOPHER C. NINH MD (NPI 1700096393) is an individual orthopaedic surgery provider in Irvine, California, licensed in California (A98528) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (2002).

NPPES Registry Identity

NPI1700096393

Entity TypeIndividualMale

Primary Taxonomy207X00000X

Provider Legal NameCHRISTOPHER C. NINHCredential: MD

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

Sole ProprietorNo

Medical School CMSUniversity Of California, Irvine, California College Of MedicineGraduated 2002

Enumeration DateMay 23, 2007

Last NPPES UpdateFebruary 19, 2026

NPPES CertifiedFebruary 19, 2026

✔ NPI 1700096393 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ 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.

17305 VON KARMAN AVE STE 100, Irvine, CA 92614

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Christopher C. Ninh Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9436230133

PECOS Enrollment IDI20080119000140

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.

Areas of Expertise CMS Part B claims 24

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Hyaluronan or derivative, triluron, for intra-articular injection, 1 mg J7332

Triluron is a treatment involving injections of a substance called hyaluronan into your joints. It helps to lubricate and cushion the joint, which can reduce pain and improve movement, especially in conditions like osteoarthritis. Each injection contains 1 mg of hyaluronan.

3,305 services51 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

649 services372 patients

Therapy procedure using manual technique, each 15 minutes 97140

This therapy involves using hands-on techniques to help improve your body's movement and function. These techniques may include stretching, resistance exercises, or gentle pressure. Each session lasts 15 minutes and aims to relieve pain, promote healing, and improve your overall health.

635 services32 patients

Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes 97110

This therapy involves exercises to boost strength, endurance, flexibility, and range of motion. Each session lasts 15 minutes. The goal is to improve physical function and overall health. It's a safe, beneficial method for enhancing well-being and fitness.

633 services32 patients

Aspiration and/or injection of fluid large joint using ultrasound guidance 20611

This procedure involves using ultrasound technology to accurately locate a large joint, usually the knee or shoulder. A needle is then inserted to either extract fluid (aspiration) or inject medication. The ultrasound helps ensure precision and safety.

261 services156 patients

X-ray of knee, 1-2 views 73560

An X-ray of the knee with 1-2 views is a quick, painless test that produces images of the knee bones. It helps identify fractures, infections, or changes in the knee joint. During the procedure, you'll be asked to stay still while the X-ray machine captures the images.

229 services118 patients

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

194 services128 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

187 services187 patients

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

150 services144 patients

Ultrasound of leg arteries or artery grafts 93925

An ultrasound of leg arteries or artery grafts is a non-invasive imaging test. It uses high-frequency sound waves to capture live images from inside your body, specifically your leg arteries or grafts. This helps in detecting any blockages or abnormalities.

144 services141 patients

Ultrasound study of one arm or leg veins with compression and maneuvers 93971

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

107 services62 patients

Destruction of first incompetent vein of arm or leg using radiofrequency and imaging guidance 36475

This procedure involves using radiofrequency energy, a type of heat energy, to close off an unhealthy vein in your arm or leg. Imaging guidance helps ensure precise targeting of the vein. This helps improve blood flow by rerouting it through healthier veins.

91 services58 patients

Complete ultrasound study of arm and leg arteries 93923

This procedure involves using sound waves to produce images of your arm and leg arteries. It helps identify blockages or abnormalities that could lead to conditions like stroke or peripheral artery disease. It's non-invasive and painless.

81 services80 patients

Replacement of knee joint, both sides of knee 27447

A bilateral knee joint replacement is a procedure where the damaged parts of both your knee joints are replaced with artificial parts. It aims to relieve pain and improve mobility. The process involves a surgical operation under anesthesia.

48 services46 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

33 services27 patients

X-ray of knee, 3 views 73562

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

25 services16 patients

Removal of joint lining from multiple knee joint compartments using an endoscope 29876

This procedure, called a synovectomy, involves using an endoscope, a small camera, to view your knee joint. The surgeon then removes the inflamed joint lining from several areas of your knee. The goal is to reduce pain and improve joint function.

24 services23 patients

Removal of knee cartilage using an endoscope 29881

This procedure, known as arthroscopic knee surgery, involves using a small camera (endoscope) to view the inside of your knee. Small instruments are used to remove damaged cartilage. This can help alleviate pain and improve knee function.

24 services23 patients

Removal of extensive shoulder joint tissue using an endoscope 29823

This procedure, known as arthroscopic debridement, involves using a small camera (endoscope) to view your shoulder joint. Damaged or unwanted tissue is then carefully removed. This minimally invasive technique aims to reduce pain and improve joint mobility.

21 services21 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

16 services16 patients

Partial removal of collar bone at shoulder using an endoscope 29824

This procedure involves the partial removal of the collar bone at the shoulder using an endoscope, a tool with a light and camera. It's done to relieve pain or improve shoulder movement. The surgeon makes small incisions, then uses the endoscope to guide their work.

14 services14 patients

Repair of shoulder rotator cuff using an endoscope 29827

This procedure, known as arthroscopic rotator cuff repair, helps fix tears in the shoulder's rotator cuff. An endoscope, a small camera, is used to view the shoulder inside. Using small tools, the surgeon repairs the torn tissue. This minimally invasive approach often leads to a quicker recovery.

14 services14 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

14 services11 patients

Shaving of part of shoulder bone and repair of ligament using an endoscope 29826

This procedure involves using a tiny camera, called an endoscope, to view and repair a damaged shoulder ligament. Simultaneously, a small portion of the shoulder bone is shaved to alleviate discomfort and improve movement. It's a minimally invasive technique that aids in a quicker recovery.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92614 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

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

14.93/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

14.28

Improvement Activities

Cost

30.73

Reported Quality Measures

Risk-standardized complication rate (RSCR) following elective primary total hip arthroplasty (THA) and/or total knee arthroplasty (TKA) for Merit-based Incentive Payment System (MIPS)

Lower rates are better for this measure.

0.02%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 6

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Walker, folding, wheeled, adjustable or fixed height E0143

DME-Other DME · category DE000N

7 suppliers14 claims14 services$39.29 avg. paid by Medicare

Transport chair, adult size, patient weight capacity up to and including 300 pounds E1038

DME-Other DME · category DE000N

2 suppliers11 claims11 services$8.99 avg. paid by Medicare

Knee orthosis, elastic with condylar pads and joints, with or without patellar control, prefabricated, includes fitting and adjustment L1820

DME-Orthotic Devices · category DF011N

2 suppliers73 claims103 services$105.95 avg. paid by Medicare

Knee orthosis, single upright, thigh and calf, with adjustable flexion and extension joint (unicentric or polycentric), medial-lateral and rotation control, with or without varus/valgus adjustment, prefabricated item that has been trimmed, bent, molded, assembled, or otherwise customized to fit a specific patient by an individual with expertise L1843

DME-Orthotic Devices · category DF011N

1 supplier30 claims42 services$643.54 avg. paid by Medicare

Shoulder orthosis, acromio/clavicular (canvas and webbing type), prefabricated, off-the-shelf L3670

DME-Orthotic Devices · category DF000N

1 supplier11 claims11 services$115.48 avg. paid by Medicare

Wrist hand orthosis, wrist extension control cock-up, non molded, prefabricated, off-the-shelf L3908

DME-Orthotic Devices · category DF000N

1 supplier15 claims16 services$61.00 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

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

CHRISTOPHER C. NINH MD, INC.

Orthopaedic Surgery

17305 VON KARMAN AVE STE 100
IRVINE, CA 92614

Orange County (714) 432-9990

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 Christopher Ninh's NPI number?

The NPI number for Christopher Ninh is 1700096393. It was assigned to this individual provider in the NPPES registry on May 23, 2007.

Where is Christopher Ninh located?

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

What is Christopher Ninh's specialty?

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

Is Christopher Ninh enrolled in Medicare?

Yes. Christopher Ninh is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Christopher Ninh 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 5 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.