Lorena Tan, MD
NPI 1417957697 · Family Medicine Physician · Livermore, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lorena Tan, MD is a Family Medicine Physician provider in Livermore, CA (NPI 1417957697).
Provider details
- NPI number
- 1417957697
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A61352 (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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,458 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 | 1,551 | $105 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 259 | $147 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 234 | $17 |
| Administration of Influenza Virus VaccineG0008 | 122 | $39 |
| Urinalysis, Manual Test81002 | 81 | $3 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 142 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 686 | 179 |
| Atorvastatin Calcium | 681 | 200 |
| Rosuvastatin Calcium | 588 | 200 |
| Amlodipine Besylate | 581 | 174 |
| Losartan Potassium | 490 | 143 |
| Lisinopril | 364 | 99 |
| Metoprolol Succinate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$765 across 42 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
- 2005-07-28
- Last updated
- 2016-11-15
Frequently asked questions
- What is Lorena Tan's NPI number?
- Lorena Tan's National Provider Identifier (NPI) is 1417957697, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lorena Tan's specialty?
- Lorena Tan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lorena Tan located?
- Lorena Tan's practice location on file with NPPES is 1133 E Stanley Blvd, Livermore, CA 94550-4200.
- What is Lorena Tan's phone number?
- The practice phone number listed in the NPPES registry for Lorena Tan is (925) 443-9000.
- Does Lorena Tan accept Medicare?
- Lorena Tan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lorena Tan's NPI active?
- Yes — Lorena Tan's NPI (1417957697) is active in the NPPES registry as of the last update on 2016-11-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.