Chad Weldy, MD
NPI 1477084309 · Cardiovascular Disease Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chad Weldy, MD is a Cardiovascular Disease Physician provider in Stanford, CA (NPI 1477084309).
Provider details
- NPI number
- 1477084309
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A157175 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 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
440 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 221 | $9 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 67 | $133 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 28 | $163 |
| Prolonged Office Or Other Outpatient Evaluation and Management Service(s) Beyond the Maximum Required Time of the Primary Procedure Which Has Been Selected Using Total Time on the Date of the Primary Service; Each Additional 15 Minutes By the Physician OrG2212 | 27 | $35 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 26 | $195 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 23 | — |
| Metoprolol Succinate | 22 | 11 |
| Apixabanbrand: Eliquis | 20 | — |
| Empagliflozinbrand: Jardiance | 17 | — |
| Mavacamtenbrand: Camzyos | 16 | — |
| Spironolactone | 16 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-03-22
- Last updated
- 2024-04-26
- Certified
- 2024-04-26
Frequently asked questions
- What is Chad Weldy's NPI number?
- Chad Weldy's National Provider Identifier (NPI) is 1477084309, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chad Weldy's specialty?
- Chad Weldy is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Chad Weldy located?
- Chad Weldy's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Chad Weldy's phone number?
- The practice phone number listed in the NPPES registry for Chad Weldy is (650) 723-4000.
- Does Chad Weldy accept Medicare?
- Chad Weldy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chad Weldy's NPI active?
- Yes — Chad Weldy's NPI (1477084309) is active in the NPPES registry as of the last update on 2024-04-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.