Leon Lenchik, MD
NPI 1871578336 · Diagnostic Radiology Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leon Lenchik, MD is a Diagnostic Radiology Physician provider in Stanford, CA (NPI 1871578336).
Provider details
- NPI number
- 1871578336
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G80571 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
2,844 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) |
|---|---|---|
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 217 | $35 |
| X-Ray of Shoulder, Minimum of 2 Views73030 | 195 | $9 |
| X-Ray of Pelvis, 1-2 Views72170 | 178 | $8 |
| X-Ray of Knee, 3 Views73562 | 147 | $9 |
| X-Ray of Knee, 1-2 Views73560 | 135 | $8 |
| X-Ray of Hip, 2-3 Views73502 | 127 | $10 |
| X-Ray of Shoulder, Minimum of 2 Views |
Practice location
Mailing address
Additional practice locations (1)
- 725 Welch RdPalo Alto, CA 94304-1601Phone: (650) 497-8000
Registry dates
- Enumerated
- 2005-12-07
- Last updated
- 2025-10-20
- Certified
- 2025-10-20
Frequently asked questions
- What is Leon Lenchik's NPI number?
- Leon Lenchik's National Provider Identifier (NPI) is 1871578336, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leon Lenchik's specialty?
- Leon Lenchik is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Leon Lenchik located?
- Leon Lenchik's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Leon Lenchik's phone number?
- The practice phone number listed in the NPPES registry for Leon Lenchik is (650) 723-4000.
- Does Leon Lenchik accept Medicare?
- Leon Lenchik is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leon Lenchik's NPI active?
- Yes — Leon Lenchik's NPI (1871578336) is active in the NPPES registry as of the last update on 2025-10-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.