Dr Arash Zarrin, DO in Frederick, MD - Medicare Internal Medicine

Dr Arash Zarrin, DO is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Frederick, Maryland. His current practice location is 110 Thomas Johnson Dr Ste 335, Frederick, Maryland. You can reach out to his office (for appointments etc.) via phone at (301) 624-5566.

Dr Arash Zarrin is licensed to practice in Maryland (license number H0096679) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1407351729.

Contact Information

	Dr Arash Zarrin, DO
	110 Thomas Johnson Dr Ste 335, Frederick, MD 21702-4949
	(301) 624-5566
	(301) 624-5542

Map and Direction

Physician's Profile

Full Name	Dr Arash Zarrin
Gender	Male
Speciality	Internal Medicine - Gastroenterology
Location	110 Thomas Johnson Dr Ste 335, Frederick, Maryland
Accepts Medicare Assignments	Medicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.

NPI Data:

NPI Number: 1407351729
Provider Enumeration Date: 03/28/2018
Last Update Date: 09/16/2025

Medicare PECOS Information:

PECOS PAC ID: 8022438944
Enrollment ID: I20240415000964

Medical Identifiers

Medical identifiers for Dr Arash Zarrin such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1407351729	NPI	-	NPPES
215777200	Medicaid	MD

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RG0100X	Internal Medicine - Gastroenterology	H0096679 (Maryland)	Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Arash Zarrin allows following entities to bill medicare on his behalf.

Entity Name	David W. Kossoff, M.d., Pa
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1437206984 PECOS PAC ID: 1850348632 Enrollment ID: O20050404000940

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Arash Zarrin is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing Address	Practice Location Address
Dr Arash Zarrin, DO 110 Thomas Johnson Dr Ste 335, Frederick, MD 21702-4949 Ph: (301) 624-5566	Dr Arash Zarrin, DO 110 Thomas Johnson Dr Ste 335, Frederick, MD 21702-4949 Ph: (301) 624-5566

Reviews and Comments

Internal Medicine Doctors in Frederick, MD

Dr. Patrick Johannes Mansky, M.D. Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 1562 Opossumtown Pike, Frederick, MD 21702 Phone: 301-662-8477
Gaffar A Syed, MD Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 801 Toll House Ave, H4, Frederick, MD 21701 Phone: 301-698-9444 Fax: 301-695-4444
Dr. Kristin A Conley, DO Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 7211 Bank Ct, Frederick, MD 21703 Phone: 240-566-7830
Mr. Lloyd E Halvorson, M.D. Gastroenterology Medicare: Not Enrolled in Medicare Practice Location: 7115 Guilford Dr Ste 202, Frederick, MD 21704 Phone: 301-663-5922
Dr. Jeffrey Nathan Cowen, M.D. Gastroenterology Medicare: Not Enrolled in Medicare Practice Location: 915 Toll House Ave, Suite 308, Frederick, MD 21701 Phone: 301-663-5790 Fax: 301-698-6259
Dr. Craig Lamar Cheeks Washington, MD Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 176 Thomas Johnson Dr Ste 203, Frederick, MD 21702 Phone: 240-315-4541 Fax: 240-844-5577
Harminder Kaur, MD Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 186 Thomas Johnson Dr, 105, Frederick, MD 21702 Phone: 301-515-3333 Fax: 301-515-3322

Dr Arash Zarrin, DO - Medicare Internal Medicine in Frederick, MD