Grace Liu, M.D.
NPI 1316978083 · Ophthalmology Physician · Alhambra, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Liu, M.D. is a Ophthalmology Physician provider in Alhambra, CA (NPI 1316978083).
Provider details
- NPI number
- 1316978083
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A48127 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
287 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 122 | $138 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 109 | $98 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 30 | $120 |
| Exam of Visual Field With Extended Testing92083 | 26 | $71 |
Typical Medicare-allowed amounts for these services range $71–$138 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 341 | 67 |
| Azelastine Hcl | 252 | 115 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 243 | 46 |
| Timolol Maleate | 127 | 35 |
| Brimonidine Tartrate | 101 | 18 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 71 | 50 |
| Netarsudil Mesylatebrand: Rhopressa | 29 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-05
- Last updated
- 2020-02-26
- Certified
- 2020-02-26
Frequently asked questions
- What is Grace Liu's NPI number?
- Grace Liu's National Provider Identifier (NPI) is 1316978083, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Liu's specialty?
- Grace Liu is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Grace Liu located?
- Grace Liu's practice location on file with NPPES is 801 W Valley Blvd Ste 103, Alhambra, CA 91803-3256.
- What is Grace Liu's phone number?
- The practice phone number listed in the NPPES registry for Grace Liu is (626) 308-1696.
- Does Grace Liu accept Medicare?
- Grace Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grace Liu's NPI active?
- Yes — Grace Liu's NPI (1316978083) is active in the NPPES registry as of the last update on 2020-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.