Grace Liu
NPI 1013379882 · Cardiovascular Disease Physician · Antioch, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Liu is a Cardiovascular Disease Physician provider in Antioch, CA (NPI 1013379882).
Provider details
- NPI number
- 1013379882
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,847 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 | 509 | $153 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 401 | $132 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 128 | $77 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 106 | $193 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 86 | $18 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 191 | 68 |
| Apixabanbrand: Eliquis | 182 | 43 |
| Atorvastatin Calcium | 181 | 63 |
| Losartan Potassium | 115 | 34 |
| Amlodipine Besylate | 100 | 34 |
| Furosemide | 98 | 37 |
| Carvedilol | 94 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$829 across 19 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 (1)
- 350 John Muir PkwyBrentwood, CA 94513-5183Phone: (925) 776-7725Fax: (510) 506-7727
Registry dates
- Enumerated
- 2016-03-22
- Last updated
- 2022-10-25
- Certified
- 2022-10-25
Frequently asked questions
- What is Grace Liu's NPI number?
- Grace Liu's National Provider Identifier (NPI) is 1013379882, 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 Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Grace Liu located?
- Grace Liu's practice location on file with NPPES is 4053 Lone Tree Way, Antioch, CA 94531-6210.
- What is Grace Liu's phone number?
- The practice phone number listed in the NPPES registry for Grace Liu is (925) 776-7725.
- 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 (1013379882) is active in the NPPES registry as of the last update on 2022-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.