NPPES file of Aug 9, 2026

Arash Zarimani, M.D.

Gastroenterology Physician · Los Angeles, CA

Arash Zarimani, M.D. is a gastroenterology physician with a practice address in Los Angeles, California, and NPI 1891855110, issued on Dec 8, 2006. Check the license (California A83866, 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
1891855110
Name
Arash Zarimani
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
A83866 CA
Self-reported in NPPES; status is on the state search
Practice location
1127 Wilshire Blvd Ste 909, Los Angeles, CA 90017
Phone
(213) 320-3200
Enumerated
Dec 8, 2006
Record last updated
Aug 4, 2022
Fax
(213) 454-4440
Medicare enrollment
Enrolled (PECOS I20100329000443); accepts Medicare assignment
Medical or professional school
University Of California, San Francisco School Of Medicine, 2000
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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Verify Arash Zarimani in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A83866
    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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44% fewer Medicare Part D claims than the average gastroenterology physician in 2024

452 Medicare Part D claims for 140 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Arash Zarimani452
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium87 claims
  2. Gavilyte-G54 claims
  3. Omeprazole51 claims
  4. Stelara29 claims
  5. Azathioprine28 claims
  6. Peg-3350 And Electrolytes21 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 MIPS final score for 2023 (Medicare payment program): 30 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score0.0
  2. Costout of 100 · 30%100.0
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

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

Industry payments in 2024: $320.81

17 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Arash Zarimani$320.81
  2. Specialty average$5,015.95

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

Arash Zarimani among 2,140 gastroenterology physician records in California

Arash Zarimani, M.D. is one of 2,140 gastroenterology physician records with a practice address in California. 83% 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, 48% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated2000 · median 2002 among the 1,538 with a school on file
  • Record last updated2022 · 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 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in California

There are 2,140 gastroenterology physician records in California.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Adnan Ameer, M.D.Los Angeles, CA 900171346554201
  2. Elliott Birnstein, M.D.Los Angeles, CA 900171265703300
  3. Hartley Cohen, M.D.Los Angeles, CA 900171104826213
  4. Alexander Kim, D.O.Los Angeles, CA 900171609190354
  5. Feng LiLos Angeles, CA 900171003182593
  6. Michael Pimienta, MDLos Angeles, CA 900171114486339
  7. Shahid Sial, M.D.Los Angeles, CA 900171750381844
  8. Camille SoroudiLos Angeles, CA 900171164955977

Common questions

What is Arash Zarimani, M.D.'s NPI number?

Arash Zarimani, M.D.'s National Provider Identifier (NPI) is 1891855110, issued on Dec 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Arash Zarimani, M.D. located?

The NPPES record lists a practice address at 1127 Wilshire Blvd Ste 909, Los Angeles, CA, 90017. Phone: (213) 320-3200. Providers update this record themselves, so call before visiting.

How can I verify Arash Zarimani, M.D.'s license?

NPPES lists California license number A83866, 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 Arash Zarimani, M.D. prescribe under Medicare Part D?

In 2024, Arash Zarimani, M.D. had 452 Medicare Part D claims for 140 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Arash Zarimani, M.D.'s MIPS final score?

The 2023 MIPS final score is 30 of 100. 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.