NPPES file of Aug 9, 2026

Daniel Greenberg, M.D.

Specialist · Oxnard, CA

Daniel Greenberg, M.D. is a specialist with a practice address in Oxnard, California, and NPI 1619993771, issued on Jul 14, 2006. Check the license (California G44959, 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
1619993771
Name
Daniel Greenberg
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
G44959 CA
Self-reported in NPPES; status is on the state search
Practice location
1600 N Rose Ave, Oxnard, CA 93030
Phone
(805) 983-0860
Enumerated
Jul 14, 2006
Record last updated
Aug 14, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicaid ID
00G449590 CA
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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8 nearest specialist records → All 5,749 in California → Look up another NPI →

Also registered at 1600 N Rose Ave

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

  1. Glen Abergel, M.D.Critical Care Medicine (Internal Medicine) Physician1093743924
  2. Waqas Aftab, M.D.Critical Care Medicine (Internal Medicine) Physician1043414220
  3. David Aguilar, M.D.Anesthesiology Physician1568484921
  4. Michelle AmparoRegistered Nurse1386593994
  5. Melissa Arbar, DOAnesthesiology Physician1063875136
  6. Sulaiman Barkho, MDInternal Medicine Physician1710417209

Verify Daniel Greenberg 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 G44959    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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Industry payments in 2024: $121.84

1 payment: food and beverage; the largest payer was Amgen 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. Daniel Greenberg$121.84
  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.

Daniel Greenberg among 5,749 specialist records in California

Daniel Greenberg, M.D. is one of 5,749 specialist records with a practice address in California. 30% 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, 60% newer
  • In a Medicare fileYes · 30% of these records are
  • In the CMS Doctors and Clinicians fileNo · 19% of these records are
  • Record last updated2018 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in California

There are 5,749 specialist records in California.

All 5,749 in California → Every provider in Oxnard → Specialist nationwide →

The 8 specialist records with the nearest ZIP codes

  1. Lakita Davis, B.S, R.K.T.Oxnard, CA 930301982964680
  2. James Schick, M.D.Oxnard, CA 930301760448872
  3. Bernardine Thomas, PTOxnard, CA 930301528285269
  4. Ju-Sung Wu, M.D.Oxnard, CA 930301093767469
  5. Michael Schneider, MDOxnard, CA 930351316086481
  6. Ali Berenji, M.D.Oxnard, CA 930361417077470
  7. Anthony Bledin, M.D.Oxnard, CA 930361588687115
  8. Alejandro Garcia, M.D.Oxnard, CA 930361114000569

Common questions

What is Daniel Greenberg, M.D.'s NPI number?

Daniel Greenberg, M.D.'s National Provider Identifier (NPI) is 1619993771, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Daniel Greenberg, M.D. located?

The NPPES record lists a practice address at 1600 N Rose Ave, Oxnard, CA, 93030. Phone: (805) 983-0860. Providers update this record themselves, so call before visiting.

How can I verify Daniel Greenberg, M.D.'s license?

NPPES lists California license number G44959, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.