Dr Ivan Stephen Lowenthal, MD in Tamuning, GU

Dr Ivan Stephen Lowenthal, MD is a medicare enrolled "Internal Medicine - Medical Oncology" physician in Tamuning, Guam. His current practice location is 633 Gov Carlos Camacho Rd., Ste B5, Tamuning, Guam. You can reach out to his office (for appointments etc.) via phone at (671) 647-4656.

Dr Ivan Stephen Lowenthal is licensed to practice in Guam (license number M-1925) 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 1043245889.

Contact Information

	Dr Ivan Stephen Lowenthal, MD
	633 Gov Carlos Camacho Rd., Ste B5, Tamuning, GU 96913-3194
	(671) 647-4656
	(671) 647-4660

Map and Direction

Physician's Profile

Full Name	Dr Ivan Stephen Lowenthal
Gender	Male
Speciality	Internal Medicine - Medical Oncology
Location	633 Gov Carlos Camacho Rd., Ste B5, Tamuning, Guam
Accepts Medicare Assignments	Medicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.

NPI Data:

NPI Number: 1043245889
Provider Enumeration Date: 07/11/2006
Last Update Date: 03/19/2025

Medicare PECOS Information:

PECOS PAC ID: 3678569191
Enrollment ID: I20110112000834

Medical Identifiers

Medical identifiers for Dr Ivan Stephen Lowenthal such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1043245889	NPI	-	NPPES
001187897	Medicaid	CT
18789	Other	CT	CT. LICENSE
M-1925	Other	GU	GUAM LICENSE
06-1088532	Other		TAX ID #
1683	Other	CT	CT CONTROLLED SUBSTANCE

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RX0202X	Internal Medicine - Medical Oncology	18789 (Connecticut)	Secondary
207RX0202X	Internal Medicine - Medical Oncology	M-1925 (Guam)	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 Ivan Stephen Lowenthal allows following entities to bill medicare on his behalf.

Entity Name	Yale University
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1205822236 PECOS PAC ID: 9436061736 Enrollment ID: O20031105000015

Entity Name	Yale New Haven Hospital
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1336139500 PECOS PAC ID: 8325935018 Enrollment ID: O20040227000825

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 Ivan Stephen Lowenthal 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 Ivan Stephen Lowenthal, MD 633 Gov Carlos Camacho Rd., Ste B5, Tamuning, GU 96913-3194 Ph: (671) 647-4656	Dr Ivan Stephen Lowenthal, MD 633 Gov Carlos Camacho Rd., Ste B5, Tamuning, GU 96913-3194 Ph: (671) 647-4656

Reviews and Comments

Internal Medicine Doctors in Tamuning, GU

Dr. Pablo Soriano Guzman, M.D. Internal Medicine Medicare: Not Enrolled in Medicare Practice Location: 543 Guma Yuos St., Tamuning, GU 96913 Phone: 671-646-9696 Fax: 671-649-6601
Dr. Erika Masuda Alford, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 1244 N Marine Corps Dr, Tamuning, GU 96913 Phone: 671-647-8262
Mr. Romeo M Samonte, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 1757 Army Dr, Suite 108, Tamuning, GU 96913 Phone: 671-647-4533 Fax: 671-647-1110
Annakutty Mathew, M.D. Internal Medicine Medicare: Not Enrolled in Medicare Practice Location: 850 Gov. Carlos Camacho Rd., Tamuning, GU 96913 Phone: 671-647-2330
Dr. Vincent Duenas, D.O. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 280 Pale San Vitores Rd Apt 104, Tamuning, GU 96913 Phone: 671-689-4219
Paul Alfred Muna Aguon, M.D. Internal Medicine Medicare: Medicare Enrolled Practice Location: 850 Gov Carlos G Camacho Rd, Tamuning, GU 96913 Phone: 671-683-8484

Dr Ivan Stephen Lowenthal, MD - Medicare Internal Medicine in Tamuning, GU