NPPES file of Aug 9, 2026

Sharon Marie Stein, MD

Diagnostic Radiology Physician · San Mateo, CA

Sharon Marie Stein, MD is a diagnostic radiology physician with a practice address in San Mateo, California, and NPI 1952348260, issued on Jun 2, 2006. Check the license (California A49100, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1952348260
Name
Sharon Marie Stein
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
A49100 CA
Self-reported in NPPES; status is on the state search
Practice location
101 S San Mateo Dr, San Mateo, CA 94401
Phone
(650) 343-1655
Enumerated
Jun 2, 2006
Record last updated
Aug 11, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicaid ID
00A491000 CA
Medicare enrollment
Enrolled (PECOS I20060913000186); accepts Medicare assignment
Medical or professional school
Louisiana State University School Of Medicine In Shreveport, 1987
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 101 S San Mateo Dr

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

  1. Marieta Angtuaco, M.D.Specialist1548324536
  2. Jack Bernstein, MDInternal Medicine Physician1457301384
  3. Catrina Blake, FNPNurse Practitioner1205472115
  4. Jonathan Briskin, M.D.Cardiovascular Disease Physician1417032376
  5. Doris Burton, MDDiagnostic Radiology Physician1285837906
  6. Mary Dobbins, M.D.Internal Medicine Physician1407837693

Verify Sharon Marie Stein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A49100
    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 MIPS final score for 2023 (Medicare payment program): 0 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score0.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

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

Bills Medicare through 2 group practices

  1. Advanced Radiology And Interventional Associates IncStockton, CA
  2. North East Medical ServicesSan Francisco, CA

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

Sharon Marie Stein among 4,500 diagnostic radiology physician records in California

Sharon Marie Stein, MD is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1987 · median 2004 among the 3,130 with a school on file
  • Record last updated2011 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in California

There are 4,500 diagnostic radiology physician records in California.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Avanti Ambekar, M.D.San Mateo, CA 944011356447627
  2. Harriet Borofsky, M.D.San Mateo, CA 944011033162912
  3. Kelly Broderick, M.D.San Mateo, CA 944011609821891
  4. Doris Burton, MDSan Mateo, CA 944011285837906
  5. Rahi Kumar, M.D.San Mateo, CA 944011730452806
  6. Nancy Lai, M.D.San Mateo, CA 944011932326188
  7. Nicole Lee, MDSan Mateo, CA 944011669615183
  8. Kathleen McKenna, M.D.San Mateo, CA 944011699711358

Common questions

What is Sharon Marie Stein, MD's NPI number?

Sharon Marie Stein, MD's National Provider Identifier (NPI) is 1952348260, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sharon Marie Stein, MD located?

The NPPES record lists a practice address at 101 S San Mateo Dr, San Mateo, CA, 94401. Phone: (650) 343-1655. Providers update this record themselves, so call before visiting.

How can I verify Sharon Marie Stein, MD's license?

NPPES lists California license number A49100, 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 Sharon Marie Stein, MD's MIPS final score?

The 2023 MIPS final score is 0 of 100. 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.