NPPES file of Aug 9, 2026

Ernest H. Agatstein, MD

Urology Physician · Downey, CA

Ernest H. Agatstein, MD is a urology physician with a practice address in Downey, California, and NPI 1952386583, issued on Dec 7, 2005. Check the license (California G48418, 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
1952386583
Name
Ernest H. Agatstein
Credential
MD
Primary taxonomy
Urology Physician 208800000X
License number
G48418 CA
Self-reported in NPPES; status is on the state search
Practice location
11411 Brookshire Ave Ste 508, Downey, CA 90241
Phone
(562) 923-0706
Enumerated
Dec 7, 2005
Record last updated
Oct 4, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(562) 861-2133
Medicare enrollment
Enrolled (PECOS I20110527000462); accepts Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 1981
Telehealth
Offers telehealth (CMS)
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 11411 Brookshire Ave Ste 508

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

  1. Garen AbediUrology Physician1285909051
  2. Yasmin AlaranPhysician Assistant1962045922
  3. Andrew Behesnilian, M.D.Urology Physician1467741694
  4. Jasmina Dukovic, PA-CPhysician Assistant1457021677
  5. Paul LeePhysician Assistant1144996745

Verify Ernest H. Agatstein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G48418
    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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84% more Medicare Part D claims than the average urology physician in 2024

2,466 Medicare Part D claims for 531 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D.

  1. Ernest Agatstein2,466
  2. Specialty average1,340

Most prescribed

  1. Tamsulosin Hcl768 claims
  2. Finasteride390 claims
  3. Orgovyx193 claims
  4. Oxybutynin Chloride Er185 claims
  5. Alfuzosin Hcl Er180 claims
  6. Gemtesa123 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 84 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 score79.4
  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: $908.69

42 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ernest Agatstein$908.69
  2. Specialty average$3,800.04

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

Bills Medicare through one group practice

  1. Genesis Healthcare Partners PCWhittier, CA

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

Ernest H. Agatstein among 1,524 urology physician records in California

Ernest H. Agatstein, MD is one of 1,524 urology physician records with a practice address in California. 82% 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, 92% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1981 · median 2003 among the 1,049 with a school on file
  • Record last updated2021 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208800000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Urology Physician providers in California

There are 1,524 urology physician records in California.

The 8 urology physician records with the nearest ZIP codes

  1. Garen AbediDowney, CA 902411285909051
  2. Andrew Behesnilian, M.D.Downey, CA 902411467741694
  3. Farshad Nowzari, MD, FACSGardena, CA 902471689741423
  4. Nickolas Tomasic, M.D.Culver City, CA 902321104875160
  5. Robert Shaw, M.D.Beverly Hills, CA 902121588626691
  6. Andrew ChenBeverly Hills, CA 902111942786835
  7. James Elist, M.D.Beverly Hills, CA 902111730234675
  8. Howard Kim, MDBeverly Hills, CA 902111386691830

Common questions

What is Ernest H. Agatstein, MD's NPI number?

Ernest H. Agatstein, MD's National Provider Identifier (NPI) is 1952386583, issued on Dec 7, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Ernest H. Agatstein, MD located?

The NPPES record lists a practice address at 11411 Brookshire Ave Ste 508, Downey, CA, 90241. Phone: (562) 923-0706. Providers update this record themselves, so call before visiting.

How can I verify Ernest H. Agatstein, MD's license?

NPPES lists California license number G48418, 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 Ernest H. Agatstein, MD prescribe under Medicare Part D?

In 2024, Ernest H. Agatstein, MD had 2,466 Medicare Part D claims for 531 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.

What is Ernest H. Agatstein, MD's MIPS final score?

The 2023 MIPS final score is 84 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.