Calvin Lei, MD
NPI 1265432967 · Internal Medicine Physician · Pleasanton, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Calvin Lei, MD is a Internal Medicine Physician provider in Pleasanton, CA (NPI 1265432967).
Provider details
- NPI number
- 1265432967
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A54048 (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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,748 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 | 822 | $109 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 406 | $153 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 170 | $153 |
| Admn Sarscov2 Vacc 1 Dose90480 | 96 | $52 |
| Administration of Influenza Virus VaccineG0008 | 94 | $38 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 118 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 349 | 135 |
| Amlodipine Besylate | 241 | 92 |
| Losartan Potassium | 216 | 83 |
| Zolpidem Tartrate | 188 | 43 |
| Levothyroxine Sodium | 182 | 71 |
| Alprazolam | 152 | 32 |
| Lisinopril |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$124 across 1 record (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)
- 1447 Cedarwood Lane #aPleasanton, CA 94550Phone: (925) 460-9903Fax: (925) 460-9904
Registry dates
- Enumerated
- 2005-07-26
- Last updated
- 2020-08-11
- Certified
- 2020-08-11
Frequently asked questions
- What is Calvin Lei's NPI number?
- Calvin Lei's National Provider Identifier (NPI) is 1265432967, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Calvin Lei's specialty?
- Calvin Lei is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Calvin Lei located?
- Calvin Lei's practice location on file with NPPES is 5565 W Las Positas Blvd Ste 260, Pleasanton, CA 94588-5807.
- What is Calvin Lei's phone number?
- The practice phone number listed in the NPPES registry for Calvin Lei is (925) 416-5470.
- Does Calvin Lei accept Medicare?
- Calvin Lei is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Calvin Lei's NPI active?
- Yes — Calvin Lei's NPI (1265432967) is active in the NPPES registry as of the last update on 2020-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.