NPPES file of Aug 9, 2026

Olga Lyass, M.D.

Nuclear Medicine Physician · Lancaster, CA

Olga Lyass, M.D. is a nuclear medicine physician with a practice address in Lancaster, California, and NPI 1134271067, issued on Jan 18, 2007. Check the license (California A93366, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134271067
Name
Olga Lyass
Credential
M.D.
Primary taxonomy
Nuclear Medicine Physician 207U00000X
License number
A93366 CA
Self-reported in NPPES; status is on the state search
Practice location
1600 W Avenue J, Lancaster, CA 93534
Phone
(661) 949-5000
Enumerated
Jan 18, 2007
Record last updated
Aug 16, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid ID
00A933660 CA
Medicare enrollment
Enrolled (PECOS I20070321000660); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1600 W Avenue J

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sam Abid, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1295366656
  2. Hazem Aboaid, MDInternal Medicine Physician1689323552
  3. Beverly Kim AgniPsychiatric/Mental Health Registered Nurse1194542761
  4. Josephine Aideloje, NPPsychiatric/Mental Health Nurse Practitioner1790272243
  5. Imaobong AliyuAdult Psychiatric/Mental Health Registered Nurse1497343206
  6. Sam Allen, MDObstetrics & Gynecology Physician1982740841

Verify Olga Lyass in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A93366
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The practice group's MIPS final score for 2023 (Medicare payment program): 87.7 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score75.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $17.30

1 payment: food and beverage; the largest payer was Teleflex LLC. The 172 providers of this specialty with any payment received $4,384.46 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Olga Lyass$17.30
  2. Specialty average$4,384.46

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Golden State Imaging Associates IncEncino, CA
  2. Renaissance Imaging Medical Associates IncLong Beach, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Olga Lyass among 150 nuclear medicine physician records in California

Olga Lyass, M.D. is one of 150 nuclear medicine physician records with a practice address in California. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 58% of them.

  • NPI issued2007 · 58% of these records are older, 28% newer
  • In a Medicare fileYes · 59% of these records are
  • In the CMS Doctors and Clinicians fileYes · 48% of these records are
  • Graduated1988 · median 1999 among the 72 with a school on file
  • Record last updated2007 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207U00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nuclear Medicine Physician providers in California

There are 150 nuclear medicine physician records in California.

The 8 nuclear medicine physician records with the nearest ZIP codes

  1. Mythri Shankar, M.D.Lancaster, CA 935341083895262
  2. Gerald Main, M.D.Cambria, CA 934281568583201
  3. Mark Bernard, MDFresno, CA 937201780635508
  4. Harinder Brar, MDBakersfield, CA 933091659656668
  5. David Carlson, M.D.Santa Barbara, CA 931051902133465
  6. Daniel Rimkus, M.D.Santa Barbara, CA 931051447343256
  7. Stephen Gerard, M.D.Daly City, CA 940151417043191
  8. Merlin Puterbaugh, M.D.Los Altos, CA 940221598104101

Common questions

What is Olga Lyass, M.D.'s NPI number?

Olga Lyass, M.D.'s National Provider Identifier (NPI) is 1134271067, issued on Jan 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Olga Lyass, M.D. located?

The NPPES record lists a practice address at 1600 W Avenue J, Lancaster, CA, 93534. Phone: (661) 949-5000. Providers update this record themselves, so call before visiting.

How can I verify Olga Lyass, M.D.'s license?

NPPES lists California license number A93366, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Olga Lyass, M.D.'s MIPS final score?

The 2023 MIPS final score is 87.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.