Lan DO, M.D.
NPI 1427497833 · Family Medicine Physician · Milpitas, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lan DO, M.D. is a Family Medicine Physician provider in Milpitas, CA (NPI 1427497833).
Provider details
- NPI number
- 1427497833
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A138460 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 70 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 336 | 169 |
| Amlodipine Besylate | 266 | 117 |
| Losartan Potassium | 183 | 84 |
| Lisinopril | 144 | 65 |
| Tamsulosin Hcl | 108 | 49 |
| Hydrochlorothiazide | 102 | 46 |
| Metformin Hcl | 101 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-06-19
- Last updated
- 2025-10-16
- Certified
- 2025-10-16
Frequently asked questions
- What is Lan DO's NPI number?
- Lan DO's National Provider Identifier (NPI) is 1427497833, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lan DO's specialty?
- Lan DO is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lan DO located?
- Lan DO's practice location on file with NPPES is 991 Montague Expy Ste 104, Milpitas, CA 95035-6809.
- What is Lan DO's phone number?
- The practice phone number listed in the NPPES registry for Lan DO is (408) 444-5006.
- Does Lan DO accept Medicare?
- Lan DO is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lan DO's NPI active?
- Yes — Lan DO's NPI (1427497833) is active in the NPPES registry as of the last update on 2025-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.