Weiguo Li, M.D.,PH.D.
NPI 1972640142 · Family Medicine Physician · Alhambra, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Weiguo Li, M.D.,PH.D. is a Family Medicine Physician provider in Alhambra, CA (NPI 1972640142).
Provider details
- NPI number
- 1972640142
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.,PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A63308 (CA)
Specialties & taxonomies
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
1,629 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,453 | $99 |
| Physician Or Allowed Practitioner Certification for Medicare-Covered Home Health Services Under a Home Health Plan of Care (patient Not Present), Including Contacts With Home Health Agency and Review of Reports of Patient Status Required By Physicians andG0180 | 65 | $59 |
| Physician Or Allowed Practitioner Supervision of a Patient Receiving Medicare-Covered Services Provided By a Participating Home Health Agency (patient Not Present) Requiring Complex and Multidisciplinary Care Modalities Involving Regular Physician Or AllowG0181 | 61 | $112 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 50 | $180 |
Typical Medicare-allowed amounts for these services range $59–$180 (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 · 96 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Linaclotidebrand: Linzess | 268 | 45 |
| Levocetirizine Dihydrochloride | 242 | 64 |
| Amlodipine Besylate | 239 | 54 |
| Icosapent Ethylbrand: Vascepa | 203 | 45 |
| Sitagliptin Phos/Metformin Hclbrand: Janumet | 183 | 31 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 180 | 42 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,574 across 120 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
- 2007-01-30
- Last updated
- 2010-09-08
Frequently asked questions
- What is Weiguo Li's NPI number?
- Weiguo Li's National Provider Identifier (NPI) is 1972640142, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Weiguo Li's specialty?
- Weiguo Li is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Weiguo Li located?
- Weiguo Li's practice location on file with NPPES is 25 S Raymond Ave Ste 111, Alhambra, CA 91801-7142.
- What is Weiguo Li's phone number?
- The practice phone number listed in the NPPES registry for Weiguo Li is (626) 943-1818.
- Does Weiguo Li accept Medicare?
- Weiguo Li is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Weiguo Li's NPI active?
- Yes — Weiguo Li's NPI (1972640142) is active in the NPPES registry as of the last update on 2010-09-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.