Olga Lyass, M.D.
NPI 1134271067 · Nuclear Medicine Physician · Lancaster, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Olga Lyass, M.D. is a Nuclear Medicine Physician provider in Lancaster, CA (NPI 1134271067).
Provider details
- NPI number
- 1134271067
- Entity type
- Individual
- Primary specialty
- Nuclear Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A93366 (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
19 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
1,395 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) |
|---|---|---|
| Nuclear Medicine Studies of Heart Muscle at Rest and With Stress and Spect78452 | 612 | $78 |
| Nuclear Medicine Study of Liver and Bile Duct System78226 | 147 | $36 |
| Nuclear Medicine Study of Bone And/Or Joint Whole Body78306 | 115 | $40 |
| Nuclear Medicine Study of Lung Ventilation and Circulation78582 | 98 | $51 |
| Nuclear Medicine Study of Heart Muscle at Rest and With Stress and Spect78451 | 73 | $66 |
| Nuclear Medicine Study of Stomach to Assess Emptying78264 | 56 | $38 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$17 across 1 record (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
- 2007-01-18
- Last updated
- 2007-08-16
Frequently asked questions
- What is Olga Lyass's NPI number?
- Olga Lyass's National Provider Identifier (NPI) is 1134271067, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Olga Lyass's specialty?
- Olga Lyass is listed in the NPPES registry with a primary specialty of Nuclear Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Olga Lyass located?
- Olga Lyass's practice location on file with NPPES is 1600 W Avenue J, Lancaster, CA 93534-2814.
- What is Olga Lyass's phone number?
- The practice phone number listed in the NPPES registry for Olga Lyass is (661) 949-5000.
- Does Olga Lyass accept Medicare?
- Olga Lyass is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Olga Lyass's NPI active?
- Yes — Olga Lyass's NPI (1134271067) is active in the NPPES registry as of the last update on 2007-08-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.