Yingna Liu, MD
NPI 1932631462 · Retina Specialist (Ophthalmology) Physician · Tracy, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yingna Liu, MD is a Retina Specialist (Ophthalmology) Physician provider in Tracy, CA (NPI 1932631462).
Provider details
- NPI number
- 1932631462
- Entity type
- Individual
- Primary specialty
- Retina Specialist (Ophthalmology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A157345 (CA)
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
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,816 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) |
|---|---|---|
| Imaging of Retina92134 | 1,014 | $48 |
| Injection of Drug Into Eye67028 | 503 | $143 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 311 | $106 |
| Photography of the Retina92250 | 183 | $44 |
| Established Patient Complete Exam of Visual System92014 | 182 | $153 |
| New Patient Complete Exam of Visual System92004 | 169 | $177 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
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 |
|---|---|---|
| Prednisolone Acetate | 76 | 48 |
| Ketorolac Tromethamine | 36 | 18 |
| Moxifloxacin Hclbrand: Moxifloxacin | 32 | 30 |
| Difluprednate | 22 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 17 | 11 |
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.
$14,454 across 33 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
Additional practice locations (2)
- 39055 Hastings St Ste 105Fremont, CA 94538-1518Phone: (800) 573-8462Fax: (510) 794-6264
- 365 Lennon Ln Ste 250Walnut Creek, CA 94598-5915Phone: (800) 573-8462Fax: (925) 943-6880
Registry dates
- Enumerated
- 2017-04-03
- Last updated
- 2024-03-27
- Certified
- 2024-03-27
Frequently asked questions
- What is Yingna Liu's NPI number?
- Yingna Liu's National Provider Identifier (NPI) is 1932631462, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yingna Liu's specialty?
- Yingna Liu is listed in the NPPES registry with a primary specialty of Retina Specialist (Ophthalmology) Physician (Allopathic & Osteopathic Physicians).
- Where is Yingna Liu located?
- Yingna Liu's practice location on file with NPPES is 2160 W Grant Line Rd Ste 240, Tracy, CA 95377-7335.
- What is Yingna Liu's phone number?
- The practice phone number listed in the NPPES registry for Yingna Liu is (800) 573-8462.
- Does Yingna Liu accept Medicare?
- Yingna Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yingna Liu's NPI active?
- Yes — Yingna Liu's NPI (1932631462) is active in the NPPES registry as of the last update on 2024-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.