Siu-Wei Huang, M.D.
NPI 1427584143 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siu-Wei Huang, M.D. is a Internal Medicine Physician provider in San Francisco, CA (NPI 1427584143).
Provider details
- NPI number
- 1427584143
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
888 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 340 | $154 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 153 | $108 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 132 | $156 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 90 | $19 |
| Admn Sarscov2 Vacc 1 Dose90480 | 69 | $52 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 91 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 451 | 126 |
| Amlodipine Besylate | 326 | 97 |
| Losartan Potassium | 184 | 52 |
| Levothyroxine Sodium | 145 | 41 |
| Metformin Hcl | 141 | 38 |
| Gabapentin | 125 | 36 |
| Lisinopril |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$21 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 2351 Clay StSuite 380San Francisco, CA 94115-1931Phone: (415) 600-6000
Registry dates
- Enumerated
- 2017-05-02
- Last updated
- 2021-01-20
- Certified
- 2021-01-20
Frequently asked questions
- What is Siu-Wei Huang's NPI number?
- Siu-Wei Huang's National Provider Identifier (NPI) is 1427584143, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siu-Wei Huang's specialty?
- Siu-Wei Huang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Siu-Wei Huang located?
- Siu-Wei Huang's practice location on file with NPPES is 2100 Webster St Ste 516, San Francisco, CA 94115-2381.
- What is Siu-Wei Huang's phone number?
- The practice phone number listed in the NPPES registry for Siu-Wei Huang is (415) 600-2402.
- Does Siu-Wei Huang accept Medicare?
- Siu-Wei Huang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siu-Wei Huang's NPI active?
- Yes — Siu-Wei Huang's NPI (1427584143) is active in the NPPES registry as of the last update on 2021-01-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.