Stanley Hwang, MD
NPI 1780654525 · Cardiovascular Disease Physician · Watsonville, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stanley Hwang, MD is a Cardiovascular Disease Physician provider in Watsonville, CA (NPI 1780654525).
Provider details
- NPI number
- 1780654525
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G58772 (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
1,554 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 844 | $102 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 199 | $73 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 157 | $186 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision By Physician93016 | 79 | $22 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Review By Physician93018 | 79 | $15 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 262 | 84 |
| Losartan Potassium | 136 | 45 |
| Atenolol | 135 | 44 |
| Clonidine Hcl | 125 | 45 |
| Apixabanbrand: Eliquis | 124 | 33 |
| Furosemide | 118 | 39 |
| Carvedilol | 110 | 37 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$84 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
- 2006-01-24
- Last updated
- 2022-07-21
Frequently asked questions
- What is Stanley Hwang's NPI number?
- Stanley Hwang's National Provider Identifier (NPI) is 1780654525, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stanley Hwang's specialty?
- Stanley Hwang is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Stanley Hwang located?
- Stanley Hwang's practice location on file with NPPES is 65 Neilson St Ste 102, Watsonville, CA 95076-2491.
- What is Stanley Hwang's phone number?
- The practice phone number listed in the NPPES registry for Stanley Hwang is (831) 768-6217.
- Does Stanley Hwang accept Medicare?
- Stanley Hwang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stanley Hwang's NPI active?
- Yes — Stanley Hwang's NPI (1780654525) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.