Kenneth Tan, MD
NPI 1396821815 · Internal Medicine Physician · Gilroy, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kenneth Tan, MD is a Internal Medicine Physician provider in Gilroy, CA (NPI 1396821815).
Provider details
- NPI number
- 1396821815
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A70510 (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 · 73 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 376 | 124 |
| Amlodipine Besylate | 187 | 65 |
| Lisinopril | 181 | 67 |
| Losartan Potassium | 125 | 44 |
| Metformin Hclbrand: Metformin Hcl Er | 106 | 34 |
| Metoprolol Tartrate | 98 | 34 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-27
- Last updated
- 2021-12-13
Frequently asked questions
- What is Kenneth Tan's NPI number?
- Kenneth Tan's National Provider Identifier (NPI) is 1396821815, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kenneth Tan's specialty?
- Kenneth Tan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kenneth Tan located?
- Kenneth Tan's practice location on file with NPPES is 7520 Arroyo Cir, Gilroy, CA 95020-7303.
- What is Kenneth Tan's phone number?
- The practice phone number listed in the NPPES registry for Kenneth Tan is (408) 848-4600.
- Does Kenneth Tan accept Medicare?
- Kenneth Tan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kenneth Tan's NPI active?
- Yes — Kenneth Tan's NPI (1396821815) 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.