NPPES file of Aug 9, 2026

Steven Nagelberg, M.D.

Specialist · Downey, CA

Steven Nagelberg, M.D. is a specialist with a practice address in Downey, California, and NPI 1114060720, issued on Feb 14, 2007. Check the license (California G51854, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1114060720
Name
Steven Nagelberg
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
G51854 CA
Self-reported in NPPES; status is on the state search
Practice location
10800 Paramount Blvd, Downey, CA 90241
Phone
(562) 803-6116
Enumerated
Feb 14, 2007
Record last updated
Mar 2, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(562) 803-6308
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 10800 Paramount Blvd

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

  1. Mark Adriatico, M.D.Internal Medicine Physician1194913608
  2. Daphne Allison, AMFTMarriage & Family Therapist1265390652
  3. Domingo Barrientos, M.D.Internal Medicine Physician1184685281
  4. Neal Brown, DDSDentist1619295862
  5. Thomas Choi, M.D.Ophthalmology Physician1477555985
  6. Emma McCulloughMarriage & Family Therapist1609481035

Verify Steven Nagelberg in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license G51854    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
Find the California license search

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95% fewer Medicare Part D claims than the average specialist in 2024

74 Medicare Part D claims for 22 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.

  1. Steven Nagelberg74
  2. Specialty average1,380

Most prescribed

  1. Celecoxib22 claims
  2. Diclofenac Sodium20 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.

Industry payments in 2024: $90.67

9 payments; by number, the most common kind was food and beverage; the largest payer was Electronic Waveform Lab, Inc. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Steven Nagelberg$90.67
  2. Specialty average$4,760.79

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

Specialist providers in California

There are 5,749 specialist records in California.

All 5,749 in California → Every provider in Downey →

Other specialist records in California

  1. Fatemeh Abbasi, PTVan Nuys, CA1558496760
  2. Erlinda Abcede, M.D.Cudahy, CA1831228675
  3. Maher Abdallah, M.D.Palm Springs, CA1205988011
  4. Farinaz AbdiSan Marcos, CA1063153963
  5. Mai Abe, LESanta Monica, CA1609405158
  6. Hamid Abedi, HEARING AID SPECIALISan Diego, CA1659410744
  7. Jonas AbellaSan Francisco, CA1679760938
  8. Shreedhar Abhyankar, M.D.Indio, CA1861530669
  9. Elaine AbichRiverside, CA1780458927
  10. Mussarat Abidi, MDLadera Ranch, CA1053307769

Common questions

What is Steven Nagelberg, M.D.'s NPI number?

Steven Nagelberg, M.D.'s National Provider Identifier (NPI) is 1114060720, issued on Feb 14, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Steven Nagelberg, M.D. located?

The NPPES record lists a practice address at 10800 Paramount Blvd, Downey, CA, 90241. Phone: (562) 803-6116. Providers update this record themselves, so call before visiting.

How can I verify Steven Nagelberg, M.D.'s license?

NPPES lists California license number G51854, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Steven Nagelberg, M.D. prescribe under Medicare Part D?

In 2024, Steven Nagelberg, M.D. had 74 Medicare Part D claims for 22 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.