Michael Louie, MD
NPI 1891847604 · Internal Medicine Physician · Pleasanton, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Louie, MD is a Internal Medicine Physician provider in Pleasanton, CA (NPI 1891847604).
Provider details
- NPI number
- 1891847604
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A62248 (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
19 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 · 90 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 733 | 251 |
| Lisinopril | 438 | 158 |
| Levothyroxine Sodium | 310 | 109 |
| Losartan Potassium | 306 | 110 |
| Amlodipine Besylate | 265 | 99 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 256 | 69 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-18
- Last updated
- 2021-12-06
Frequently asked questions
- What is Michael Louie's NPI number?
- Michael Louie's National Provider Identifier (NPI) is 1891847604, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Louie's specialty?
- Michael Louie is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Louie located?
- Michael Louie's practice location on file with NPPES is 7601 Stoneridge Dr, Pleasanton, CA 94588-4501.
- What is Michael Louie's phone number?
- The practice phone number listed in the NPPES registry for Michael Louie is (925) 847-5000.
- Does Michael Louie accept Medicare?
- Michael Louie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Louie's NPI active?
- Yes — Michael Louie's NPI (1891847604) is active in the NPPES registry as of the last update on 2021-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.