Alvin Wong, M.D.
NPI 1568443307 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alvin Wong, M.D. is a Internal Medicine Physician provider in San Francisco, CA (NPI 1568443307).
Provider details
- NPI number
- 1568443307
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G60945 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
410 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) |
|---|---|---|
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 141 | $155 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 70 | $110 |
| Administration of Influenza Virus VaccineG0008 | 56 | $39 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 53 | $154 |
| Physician Or Allowed Practitioner Supervision of a Patient Receiving Medicare-Covered Services Provided By a Participating Home Health Agency (patient Not Present) Requiring Complex and Multidisciplinary Care Modalities Involving Regular Physician Or AllowG0181 | 46 | $123 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 95 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 495 | 128 |
| Losartan Potassium | 284 | 74 |
| Amlodipine Besylate | 247 | 68 |
| Metformin Hcl | 190 | 50 |
| Levothyroxine Sodium | 151 | 40 |
| Losartan/Hydrochlorothiazidebrand: Losartan-Hydrochlorothiazide | 147 | 39 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$84 across 4 records (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
Registry dates
- Enumerated
- 2005-11-09
- Last updated
- 2010-07-07
Frequently asked questions
- What is Alvin Wong's NPI number?
- Alvin Wong's National Provider Identifier (NPI) is 1568443307, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alvin Wong's specialty?
- Alvin Wong is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Alvin Wong located?
- Alvin Wong's practice location on file with NPPES is 3838 California St, San Francisco, CA 94118-1522.
- What is Alvin Wong's phone number?
- The practice phone number listed in the NPPES registry for Alvin Wong is (415) 387-1534.
- Does Alvin Wong accept Medicare?
- Alvin Wong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alvin Wong's NPI active?
- Yes — Alvin Wong's NPI (1568443307) is active in the NPPES registry as of the last update on 2010-07-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.