Michael Su, MD
NPI 1871501130 · Internal Medicine Physician · Sunnyvale, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Su, MD is a Internal Medicine Physician provider in Sunnyvale, CA (NPI 1871501130).
Provider details
- NPI number
- 1871501130
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A64857 (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
481 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 198 | $154 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 107 | $157 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 88 | $111 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 53 | $216 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 12 | $195 |
| Administration of Pneumococcal VaccineG0009 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 66 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 240 | 68 |
| Amlodipine Besylate | 114 | 35 |
| Metformin Hcl | 110 | 30 |
| Lisinopril | 109 | 29 |
| Losartan Potassium | 86 | 27 |
| Simvastatin | 71 | 20 |
| Rosuvastatin Calcium | 64 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-03
- Last updated
- 2011-12-20
Frequently asked questions
- What is Michael Su's NPI number?
- Michael Su's National Provider Identifier (NPI) is 1871501130, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Su's specialty?
- Michael Su is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Su located?
- Michael Su's practice location on file with NPPES is 401 Old San Francisco Rd, Sunnyvale, CA 94086-6387.
- What is Michael Su's phone number?
- The practice phone number listed in the NPPES registry for Michael Su is (408) 730-4360.
- Does Michael Su accept Medicare?
- Michael Su is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Su's NPI active?
- Yes — Michael Su's NPI (1871501130) is active in the NPPES registry as of the last update on 2011-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.