NPPES file of Aug 9, 2026

Arash Zarrin, DO

Gastroenterology Physician · Frederick, MD

Arash Zarrin, DO is a gastroenterology physician with a practice address in Frederick, Maryland, and NPI 1407351729, issued on Mar 28, 2018. Check the license (Maryland H0096679, as entered in NPPES) on the Maryland Board of Physicians; 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
1407351729
Name
Arash Zarrin
Credential
DO
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
H0096679 MD
Self-reported in NPPES; status is on the state search
Practice location
110 Thomas Johnson Dr Ste 335, Frederick, MD 21702
Phone
(301) 624-5566
Enumerated
Mar 28, 2018
Record last updated
Sep 16, 2025
Fax
(301) 624-5542
Medicaid ID
215777200 MD
Medicare enrollment
Enrolled (PECOS I20240415000964); accepts Medicare assignment
Medical or professional school
Nova Southeastern College Of Osteo Medicine, 2018
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 110 Thomas Johnson Dr Ste 335

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

  1. Lindsay BittoFamily Nurse Practitioner1972904845
  2. Pilin Francis, DOGastroenterology Physician1669967592
  3. David Kossoff, M.D.Specialist1629152582

Verify Arash Zarrin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license H0096679
    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 Maryland license search

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98% fewer Medicare Part D claims than the average gastroenterology physician in 2024

13 Medicare Part D claims for 11 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.

  1. Arash Zarrin13
  2. Specialty average811

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: $326.92

14 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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 Zarrin$326.92
  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.

Bills Medicare through one group practice

  1. David W. Kossoff, M.D., PAFrederick, MD

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

Gastroenterology Physician providers in Maryland

There are 505 gastroenterology physician records in Maryland.

Other gastroenterology physician records in Maryland

  1. Mohammad Abdallah, MBBSLa Plata, MD1598251282
  2. Maaza Abdi, M.D.Baltimore, MD1063625028
  3. Tsion Abdi, MDBaltimore, MD1881919637
  4. Hamza Abdulla, M.D.Easton, MD1437599529
  5. Thomas Abernathy, M.D.Catonsville, MD1538105697
  6. Fasika Aberra, M.D.Prince Frederick, MD1134480858
  7. Ruben Acosta, M.D.Silver Spring, MD1376545962
  8. Michael Adams, DOBethesda, MD1548757834
  9. Oluwasayo Adeyemo, MD/MPHAbingdon, MD1205221777
  10. Abdulhosein Adham, M.D.Oxon Hill, MD1710933791

Common questions

What is Arash Zarrin, DO's NPI number?

Arash Zarrin, DO's National Provider Identifier (NPI) is 1407351729, issued on Mar 28, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Arash Zarrin, DO located?

The NPPES record lists a practice address at 110 Thomas Johnson Dr Ste 335, Frederick, MD, 21702. Phone: (301) 624-5566. Providers update this record themselves, so call before visiting.

How can I verify Arash Zarrin, DO's license?

NPPES lists Maryland license number H0096679, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Arash Zarrin, DO prescribe under Medicare Part D?

In 2024, Arash Zarrin, DO had 13 Medicare Part D claims for 11 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.