Paul Liu, M.D.
NPI 1730195686 · Geriatric Medicine (Internal Medicine) Physician · San Marino, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Paul Liu, M.D. is a Geriatric Medicine (Internal Medicine) Physician provider in San Marino, CA (NPI 1730195686).
Provider details
- NPI number
- 1730195686
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G067740 (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 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
205 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) |
|---|---|---|
| Residence Visit for Established Patient With Straightforward Medical Decision Making, Per Day, If Using Time, at Least 15 Minutes99347 | 86 | $48 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, at Least 10 Minutes99307 | 42 | $43 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 41 | $99 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 19 | $21 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 17 | $141 |
Typical Medicare-allowed amounts for these services range $21–$141 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 117 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 500 | 73 |
| Lisinopril | 321 | 44 |
| Metformin Hcl | 237 | 33 |
| Amlodipine Besylate | 228 | 43 |
| Levothyroxine Sodium | 227 | 39 |
| Furosemide | 166 | 19 |
| Tamsulosin Hcl | 165 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2025-12-10
- Certified
- 2025-12-10
Frequently asked questions
- What is Paul Liu's NPI number?
- Paul Liu's National Provider Identifier (NPI) is 1730195686, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Paul Liu's specialty?
- Paul Liu is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Paul Liu located?
- Paul Liu's practice location on file with NPPES is 2233 Huntington Dr Ste 12, San Marino, CA 91108-2655.
- What is Paul Liu's phone number?
- The practice phone number listed in the NPPES registry for Paul Liu is (626) 796-0821.
- Does Paul Liu accept Medicare?
- Paul Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Paul Liu's NPI active?
- Yes — Paul Liu's NPI (1730195686) is active in the NPPES registry as of the last update on 2025-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.