Marielle Mahan, MD in Bethesda, MD - Medicare Ophthalmology

Marielle Mahan, MD is a medicare enrolled "Ophthalmology" physician in Bethesda, Maryland. Her current practice location is 5612 Shields Dr, Bethesda, Maryland. You can reach out to her office (for appointments etc.) via phone at (301) 571-4334.

Marielle Mahan is licensed to practice in Maryland (license number D0103387) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1487115010.

Contact Information

	Marielle Mahan, MD
	5612 Shields Dr, Bethesda, MD 20817-3532
	(301) 571-4334
	Not Available

Map and Direction

Physician's Profile

Full Name	Marielle Mahan
Gender	Female
Speciality	Ophthalmology
Location	5612 Shields Dr, Bethesda, Maryland
Accepts Medicare Assignments	Medicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.

NPI Data:

NPI Number: 1487115010
Provider Enumeration Date: 03/27/2019
Last Update Date: 10/02/2025

Medicare PECOS Information:

PECOS PAC ID: 5294192365
Enrollment ID: I20230605002405

Medical Identifiers

Medical identifiers for Marielle Mahan such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1487115010	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207WX0200X	Ophthalmology - Ophthalmic Plastic And Reconstructive Surgery	D0103387 (Maryland)	Secondary
207WX0200X	Ophthalmology - Ophthalmic Plastic And Reconstructive Surgery	MD600004334 (District Of Columbia)	Secondary
207W00000X	Ophthalmology	MD600004334 (District Of Columbia)	Secondary
207W00000X	Ophthalmology	D0103387 (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. Marielle Mahan allows following entities to bill medicare on her behalf.

Entity Name	University Professional Services
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1376709535 PECOS PAC ID: 4880760107 Enrollment ID: O20080910000013

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. Marielle Mahan 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
Marielle Mahan, MD 11300 Rockville Pike Ste 1202, Rockville, MD 20852-3040 Ph: (301) 896-0890	Marielle Mahan, MD 5612 Shields Dr, Bethesda, MD 20817-3532 Ph: (301) 571-4334

Reviews and Comments

Ophthalmology Doctors in Bethesda, MD

Dr. Laurence Jaworski, MD Ophthalmology Medicare: Not Enrolled in Medicare Practice Location: 10 Center Dr, Bg10 Rm10n109, Bethesda, MD 20814 Phone: 301-496-3123
Dr. Edmond Joseph Fitzgibbon, M.D. Ophthalmology Medicare: Not Enrolled in Medicare Practice Location: Bldg 49 Rm 2a50, Nei, Nih, Bethesda, MD 20892 Phone: 301-496-7144 Fax: 301-402-0511
Alexander Ferdows Baten-tschan, Ophthalmology Medicare: Medicare Enrolled Practice Location: 6720a Rockledge Dr Ste 200, Bethesda, MD 20817 Phone: 301-493-9600
Dr. Rosalie Lynn Bair, M.D. Ophthalmology Medicare: May Accept Medicare Assignments Practice Location: 5612 Shields Dr, Bethesda, MD 20817 Phone: 301-896-0890
Lucious Lim, M.D. Ophthalmology Medicare: Not Enrolled in Medicare Practice Location: 8104 Maple Ridge Rd, Bethesda, MD 20814 Phone: 301-652-6068
Julia F Malalis, M.D. Ophthalmology Medicare: Accepting Medicare Assignments Practice Location: 6430 Rockledge Dr, Suite 270, Bethesda, MD 20817 Phone: 301-493-9600 Fax: 301-493-9235
Dr. Richard M Chavis, M.D. Ophthalmology Medicare: Medicare Enrolled Practice Location: 6430 Rockledge Dr, 270, Bethesda, MD 20817 Phone: 301-493-9600 Fax: 301-493-9235

Marielle Mahan, MD - Medicare Ophthalmology in Bethesda, MD