George Lai, M.D.
NPI 1043398803 · Nephrology Physician · Hayward, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
George Lai, M.D. is a Nephrology Physician provider in Hayward, CA (NPI 1043398803).
Provider details
- NPI number
- 1043398803
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A63853 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 47 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 156 | 73 |
| Furosemide | 88 | 36 |
| Losartan Potassium | 86 | 35 |
| Atorvastatin Calcium | 58 | 25 |
| Carvedilol | 56 | 25 |
| Sevelamer Carbonate | 52 | 31 |
| Terazosin Hcl | 52 | 17 |
| Lisinopril |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$425 across 5 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
- 2006-11-01
- Last updated
- 2021-12-13
Frequently asked questions
- What is George Lai's NPI number?
- George Lai's National Provider Identifier (NPI) is 1043398803, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is George Lai's specialty?
- George Lai is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is George Lai located?
- George Lai's practice location on file with NPPES is 27303 Sleepy Hollow Ave S, Hayward, CA 94545-4203.
- What is George Lai's phone number?
- The practice phone number listed in the NPPES registry for George Lai is (510) 454-1000.
- Does George Lai accept Medicare?
- George Lai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is George Lai's NPI active?
- Yes — George Lai's NPI (1043398803) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.