Christopher Ninh, MD
NPI 1700096393 · Orthopaedic Surgery Physician · Irvine, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Ninh, MD is a Orthopaedic Surgery Physician provider in Irvine, CA (NPI 1700096393).
Provider details
- NPI number
- 1700096393
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A98528 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,413 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 649 | $129 |
| Therapy Procedure Using Manual Technique, Each 15 Minutes97140 | 635 | $19 |
| Therapy Procedure Using Exercise to Develop Strength, Endurance, Range of Motion, and Flexibility, Each 15 Minutes97110 | 633 | $23 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 261 | $119 |
| X-Ray of Knee, 1-2 Views73560 | 229 | $36 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Diclofenac Sodium | 201 | 109 |
| Ibuprofen | 120 | 99 |
| Celecoxib | 110 | 54 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 108 | 95 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 79 | 70 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 32 | 28 |
| Sulfamethoxazole/Trimethoprim |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,761 across 47 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-23
- Last updated
- 2026-02-19
- Certified
- 2026-02-19
Frequently asked questions
- What is Christopher Ninh's NPI number?
- Christopher Ninh's National Provider Identifier (NPI) is 1700096393, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Ninh's specialty?
- Christopher Ninh is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Ninh located?
- Christopher Ninh's practice location on file with NPPES is 17305 Von Karman Ave Ste 100, Irvine, CA 92614-0903.
- What is Christopher Ninh's phone number?
- The practice phone number listed in the NPPES registry for Christopher Ninh is (714) 432-9990.
- Does Christopher Ninh accept Medicare?
- Christopher Ninh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Ninh's NPI active?
- Yes — Christopher Ninh's NPI (1700096393) is active in the NPPES registry as of the last update on 2026-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.