Tzu-Shang Liu, MD PHD
NPI 1922201318 · Orthopaedic Surgery Physician · Apple Valley, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tzu-Shang Liu, MD PHD is a Orthopaedic Surgery Physician provider in Apple Valley, CA (NPI 1922201318).
Provider details
- NPI number
- 1922201318
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD PHD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MT181933 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
942 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 | 348 | $140 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 216 | $112 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 175 | $99 |
| X-Ray of Knee, 1-2 Views73560 | 92 | $38 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 38 | $181 |
| X-Ray of Knee, 4 Or More Views73564 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Meloxicam | 68 | 34 |
| Ondansetronbrand: Ondansetron Odt | 43 | 34 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 24 | 19 |
| Gabapentin | 16 | 14 |
| Cephalexin | 14 | 13 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,674 across 14 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
- 2007-06-06
- Last updated
- 2023-03-01
- Certified
- 2023-03-01
Frequently asked questions
- What is Tzu-Shang Liu's NPI number?
- Tzu-Shang Liu's National Provider Identifier (NPI) is 1922201318, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tzu-Shang Liu's specialty?
- Tzu-Shang Liu is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Tzu-Shang Liu located?
- Tzu-Shang Liu's practice location on file with NPPES is 16008 Kamana Rd, Apple Valley, CA 92307-1308.
- What is Tzu-Shang Liu's phone number?
- The practice phone number listed in the NPPES registry for Tzu-Shang Liu is (760) 956-5200.
- Does Tzu-Shang Liu accept Medicare?
- Tzu-Shang Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tzu-Shang Liu's NPI active?
- Yes — Tzu-Shang Liu's NPI (1922201318) is active in the NPPES registry as of the last update on 2023-03-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.