Changlin Wang, M.D.
NPI 1861571572 · Internal Medicine Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Changlin Wang, M.D. is a Internal Medicine Physician provider in Oakland, CA (NPI 1861571572).
Provider details
- NPI number
- 1861571572
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A61313 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 142 | 56 |
| Atorvastatin Calcium | 115 | 42 |
| Losartan Potassium | 76 | 25 |
| Metformin Hcl | 63 | 23 |
| Hydrochlorothiazide | 46 | 19 |
| Famotidine | 38 | 18 |
| Alendronate Sodium | 28 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$139 across 2 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
- 2006-11-03
- Last updated
- 2016-12-28
Frequently asked questions
- What is Changlin Wang's NPI number?
- Changlin Wang's National Provider Identifier (NPI) is 1861571572, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Changlin Wang's specialty?
- Changlin Wang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Changlin Wang located?
- Changlin Wang's practice location on file with NPPES is 835 Webster Street, Oakland, CA 94607.
- What is Changlin Wang's phone number?
- The practice phone number listed in the NPPES registry for Changlin Wang is (510) 318-5800.
- Does Changlin Wang accept Medicare?
- Changlin Wang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Changlin Wang's NPI active?
- Yes — Changlin Wang's NPI (1861571572) is active in the NPPES registry as of the last update on 2016-12-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.