Registry data as of Aug 27, 2026

Ilana Yurkiewicz, M.D.

Hematology (Internal Medicine) Physician · Stanford, CA

Ilana Yurkiewicz, M.D. is a hematology (internal medicine) physician with a practice address in Stanford, California, and NPI 1245625490, issued on Apr 4, 2015. Check the license (California A146955, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1245625490
Name
Ilana Yurkiewicz
Credential
M.D.
Primary taxonomy
Hematology (Internal Medicine) Physician 207RH0000X
License number
A146955 CA
Self-reported in NPPES; status is on the state search
Practice location
300 Pasteur Dr, Stanford, CA 94305
Phone
(650) 723-4000
Enumerated
Apr 4, 2015
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 300 Pasteur Dr

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

  1. Cooper Aakhus, MDEmergency Medicine Physician1194351007
  2. Oliver Aalami, M.D.Surgery Physician1225229024
  3. Alistair Aaronson, MDInternal Medicine Physician1457628760
  4. Sumaira Aasi, MDDermatology Physician1780675181
  5. Fahim Abbasi, M.D.Advanced Heart Failure and Transplant Cardiology Physician1841484037
  6. Mohamad Abbass, MDNeurological Surgery Physician1679492151

Verify Ilana Yurkiewicz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A146955    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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

65% more Medicare Part D claims than the average hematology (internal medicine) physician in 2024

1,131 Medicare Part D claims for 170 beneficiaries, against an average of 684 among the 1,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 18 claims were for opioids.

  1. Ilana Yurkiewicz1,131
  2. Specialty average684

Most prescribed

  1. Atorvastatin Calcium97 claims
  2. Losartan Potassium79 claims
  3. Amlodipine Besylate69 claims
  4. Levothyroxine Sodium56 claims
  5. Sertraline Hcl40 claims
  6. Metformin Hcl36 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

One hospital or facility affiliation

  1. Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Hematology (Internal Medicine) Physician providers in California

There are 132 hematology (internal medicine) physician records in California.

All 132 in California → Every provider in Stanford →

Other hematology (internal medicine) physician records in California

  1. Haifaa Abdulhaq, MDFresno, CA1508024647
  2. John Adamson, MDSan Diego, CA1477504801
  3. Julio Alvarenga Thiebaud, M.D.Irvine, CA1457770497
  4. Idoroenyi Amanam, M.D.Duarte, CA1205257920
  5. Ian Anderson, M.D.Santa Rosa, CA1518055573
  6. Sally Arai, MDStanford, CA1881739530
  7. Shirin Attarian, M.D.Orange, CA1427310713
  8. Kavya Babu, MDSacramento, CA1922682392
  9. John Baird, MDDuarte, CA1427493998
  10. Brian Ball, M.D.Duarte, CA1356754683

Common questions

What is Ilana Yurkiewicz, M.D.'s NPI number?

Ilana Yurkiewicz, M.D.'s National Provider Identifier (NPI) is 1245625490, issued on Apr 4, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Ilana Yurkiewicz, M.D. located?

The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.

How can I verify Ilana Yurkiewicz, M.D.'s license?

NPPES lists California license number A146955, 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.

How much does Ilana Yurkiewicz, M.D. prescribe under Medicare Part D?

In 2024, Ilana Yurkiewicz, M.D. had 1,131 Medicare Part D claims for 170 beneficiaries; the average among hematology (internal medicine) physician prescribers was 684. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.