John Louie, MD
NPI 1972589703 · Vascular & Interventional Radiology Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Interventional Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Louie, MD is a Vascular & Interventional Radiology Physician provider in Stanford, CA (NPI 1972589703).
Provider details
- NPI number
- 1972589703
- Entity type
- Individual
- Primary specialty
- Vascular & Interventional Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A82163 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Technologists, Technicians & Other Technical Service Providers
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
694 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) |
|---|---|---|
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 119 | $13 |
| Insertion of Tube Into Abdominal, Pelvic, Or Leg Artery, Additional Second, Third, and Beyond36248 | 112 | $51 |
| Review By Radiologist of Additional Artery Image75774 | 95 | $50 |
| Insertion of Tube Into Abdominal, Pelvic, Or Leg Artery, Initial Third Order Branch36247 | 83 | $187 |
| Ultrasonic Guidance for Blood Vessel Access76937 | 73 | $15 |
| Review By Radiologist of Abdominal Artery Image75726 | 57 | $102 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,151 across 13 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
Additional practice locations (1)
- 3295 Hostetter RdSan Jose, CA 95132-1919Phone: (510) 579-3443
Registry dates
- Enumerated
- 2005-12-22
- Last updated
- 2024-04-08
- Certified
- 2024-04-08
Frequently asked questions
- What is John Louie's NPI number?
- John Louie's National Provider Identifier (NPI) is 1972589703, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Louie's specialty?
- John Louie is listed in the NPPES registry with a primary specialty of Vascular & Interventional Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Louie located?
- John Louie's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is John Louie's phone number?
- The practice phone number listed in the NPPES registry for John Louie is (650) 723-4000.
- Does John Louie accept Medicare?
- John Louie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Louie's NPI active?
- Yes — John Louie's NPI (1972589703) is active in the NPPES registry as of the last update on 2024-04-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.