NPPES file of Aug 9, 2026

Hashim Abdul-Rehman Mapara, MD

Nephrology Physician · Oxnard, CA

Hashim Abdul-Rehman Mapara, MD is a nephrology physician with a practice address in Oxnard, California, and NPI 1306074927, issued on Jun 23, 2009. Check the license (California A125668, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1306074927
Name
Hashim Abdul-Rehman Mapara
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
A125668 CA
Self-reported in NPPES; status is on the state search
Practice location
1900 Outlet Center Dr, Oxnard, CA 93036
Phone
(805) 983-8049
Enumerated
Jun 23, 2009
Record last updated
Feb 6, 2025
Fax
(805) 983-8076
Medicare enrollment
Enrolled (PECOS I20131024000981); accepts Medicare assignment
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 1900 Outlet Center Dr

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

  1. Edenmae Chu-Panganiban, NPFamily Nurse Practitioner1083478796

Verify Hashim Abdul-Rehman Mapara in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A125668
    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

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2.2 times the Medicare Part D claims of the average nephrology physician in 2024

3,206 Medicare Part D claims for 421 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. 14 claims were for opioids.

  1. Hashim Mapara3,206
  2. Specialty average1,465

Most prescribed

  1. Bumetanide206 claims
  2. Losartan Potassium173 claims
  3. Amlodipine Besylate170 claims
  4. Allopurinol160 claims
  5. Farxiga159 claims
  6. Calcitriol157 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: $332.68

11 payments; by number, the most common kind was food and beverage; the largest payer was Mallinckrodt Hospital Products Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Hashim Mapara$332.68
  2. Specialty average$3,091.37

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

Bills Medicare through 3 group practices

  1. Advanced Care Multispecialty Medical Group ApcThousand Oaks, CA
  2. County OF VenturaVentura, CA
  3. Renal Consultants OF Ventura County IncCamarillo, CA

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

Hashim Abdul-Rehman Mapara among 1,468 nephrology physician records in California

Hashim Abdul-Rehman Mapara, MD is one of 1,468 nephrology physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 70% of them.

  • NPI issued2009 · 70% of these records are older, 27% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2001 · median 2001 among the 1,128 with a school on file
  • Record last updated2025 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in California

There are 1,468 nephrology physician records in California.

The 8 nephrology physician records with the nearest ZIP codes

  1. Nicholas Bednarski, M.D.Oxnard, CA 930361457425860
  2. Frank Chieu, M.D.Oxnard, CA 930361235203647
  3. Ali Dana, M.D.Oxnard, CA 930361669561536
  4. Gregory Krastein, MDOxnard, CA 930361942358759
  5. Steven Ledesma, M.D.Oxnard, CA 930361386718799
  6. Tane Liu, M.D.Oxnard, CA 930361588738991
  7. Koosha Mortazavi, M.D.Oxnard, CA 930361215966999
  8. Rajendra Niraula, MDOxnard, CA 930361922201003

Common questions

What is Hashim Abdul-Rehman Mapara, MD's NPI number?

Hashim Abdul-Rehman Mapara, MD's National Provider Identifier (NPI) is 1306074927, issued on Jun 23, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Hashim Abdul-Rehman Mapara, MD located?

The NPPES record lists a practice address at 1900 Outlet Center Dr, Oxnard, CA, 93036. Phone: (805) 983-8049. Providers update this record themselves, so call before visiting.

How can I verify Hashim Abdul-Rehman Mapara, MD's license?

NPPES lists California license number A125668, 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 Hashim Abdul-Rehman Mapara, MD prescribe under Medicare Part D?

In 2024, Hashim Abdul-Rehman Mapara, MD had 3,206 Medicare Part D claims for 421 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.

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.