Michelle Tam, M.D.
NPI 1518981307 · Internal Medicine Physician · San Jose, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michelle Tam, M.D. is a Internal Medicine Physician provider in San Jose, CA (NPI 1518981307).
Provider details
- NPI number
- 1518981307
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A62269 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
845 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 146 | $6 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 112 | $13 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 109 | $10 |
| Hemoglobin A1c Level83036 | 107 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test85027 | 87 | $6 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 71 | $16 |
| Manual Urinalysis Test With Examination Using Microscope, Automated |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 606 | 190 |
| Amlodipine Besylate | 496 | 147 |
| Losartan Potassium | 359 | 114 |
| Lisinopril | 145 | 44 |
| Metformin Hcl | 137 | 46 |
| Metoprolol Succinate | 111 | 38 |
| Simvastatin | 108 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-26
- Last updated
- 2017-03-03
Frequently asked questions
- What is Michelle Tam's NPI number?
- Michelle Tam's National Provider Identifier (NPI) is 1518981307, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michelle Tam's specialty?
- Michelle Tam is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michelle Tam located?
- Michelle Tam's practice location on file with NPPES is 1870 Lundy Ave, San Jose, CA 95131-1826.
- What is Michelle Tam's phone number?
- The practice phone number listed in the NPPES registry for Michelle Tam is (408) 573-9686.
- Does Michelle Tam accept Medicare?
- Michelle Tam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michelle Tam's NPI active?
- Yes — Michelle Tam's NPI (1518981307) is active in the NPPES registry as of the last update on 2017-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.