NPPES file of Aug 9, 2026

Michael Z. Stein, MD

Diagnostic Radiology Physician · Torrance, CA

Michael Z. Stein, MD is a diagnostic radiology physician with a practice address in Torrance, California, and NPI 1437131810, issued on Nov 19, 2005. Check the license (California A89601, 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
1437131810
Name
Michael Z. Stein
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
A89601 CA
Self-reported in NPPES; status is on the state search
Practice location
4101 Torrance Blvd, Torrance, CA 90503
Phone
(310) 303-5750
Enumerated
Nov 19, 2005
Record last updated
Apr 25, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicaid ID
00A896010 CA
Medicare enrollment
Enrolled (PECOS I20050531000845); 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.
Download card Updates feed

Also registered at 4101 Torrance Blvd

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

  1. Janette Aceituno, AGPCNPNurse Practitioner1366335341
  2. Caroline Altergott, MDEmergency Medicine Physician1902841901
  3. Kellie AmanoPharmacist1558070458
  4. Shama Ambe, M.DNeonatal-Perinatal Medicine Physician1780881763
  5. Henry Amberg, M.D.Anesthesiology Physician1336167048
  6. Anne Arafat, PHARM. D.Geriatric Pharmacist1730304452

Verify Michael Z. 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 A89601
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

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

Industry payments in 2024: $28.09

1 payment: food and beverage; the largest payer was Bard Peripheral Vascular, Inc. The 8,048 providers of this specialty with any payment received $2,488.38 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Stein$28.09
  2. Specialty average$2,488.38

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. Chinatown True Care Medical PLLCBrooklyn, NY
  2. Tower Imaging Medical Associates IncManhattan Beach, CA

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

Michael Z. Stein among 4,500 diagnostic radiology physician records in California

Michael Z. 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 93% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1999 · median 2004 among the 3,130 with a school on file
  • Record last updated2013 · 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. Adah Duncan, MDTorrance, CA 905031609858422
  2. Marsha Guerrein, MDTorrance, CA 905031093790206
  3. Glenn Huettner, MDTorrance, CA 905031114900693
  4. John Jordan, MDTorrance, CA 905031720060791
  5. Robert Kolanz, MDTorrance, CA 905031447232822
  6. Shelby Lundahl, M.D.Torrance, CA 905031669874467
  7. Robert Marcus, MDTorrance, CA 905031700856341
  8. Hannah Nien, M.D.Torrance, CA 905031417183203

Common questions

What is Michael Z. Stein, MD's NPI number?

Michael Z. Stein, MD's National Provider Identifier (NPI) is 1437131810, issued on Nov 19, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Michael Z. Stein, MD located?

The NPPES record lists a practice address at 4101 Torrance Blvd, Torrance, CA, 90503. Phone: (310) 303-5750. Providers update this record themselves, so call before visiting.

How can I verify Michael Z. Stein, MD's license?

NPPES lists California license number A89601, 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 Michael Z. Stein, MD's MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.