Grant Michael Wallenfelsz, MD in Agana Heights, GU

Grant Michael Wallenfelsz, MD is a medicare enrolled "Emergency Medicine" physician in Agana Heights, Guam. He graduated from medical school in 2020 and has 5 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Cep America - California and his current practice location is Bldg #50 Farenholt Ave, Agana Heights, Guam. You can reach out to his office (for appointments etc.) via phone at (671) 344-9340.

Grant Michael Wallenfelsz is licensed to practice in Texas (license number T3715) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1194353318.

Contact Information

	Grant Michael Wallenfelsz, MD
	Bldg #50 Farenholt Ave, Agana Heights, GU 96910
	(671) 344-9340
	Not Available

Map and Direction

Physician's Profile

Full Name	Grant Michael Wallenfelsz
Gender	Male
Speciality	Emergency Medicine
Experience	5 Years
Location	Bldg #50 Farenholt Ave, Agana Heights, Guam
Accepts Medicare Assignments	Yes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.

Medical Education and Training:

Grant Michael Wallenfelsz graduated from medical school in 2020

NPI Data:

NPI Number: 1194353318
Provider Enumeration Date: 04/01/2020
Last Update Date: 10/02/2025

Medicare PECOS Information:

PECOS PAC ID: 9335671106
Enrollment ID: I20241017002667

Medical Identifiers

Medical identifiers for Grant Michael Wallenfelsz such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1194353318	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207P00000X	Emergency Medicine	T3715 (Texas)	Primary
207P00000X	Emergency Medicine	A187218 (California)	Secondary
207P00000X	Emergency Medicine	M-2480 (Guam)	Secondary

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Cep America - California	6103739131	1093

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. Grant Michael Wallenfelsz allows following entities to bill medicare on his behalf.

Entity Name	Cep America - California
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1548667843 PECOS PAC ID: 6103739131 Enrollment ID: O20040121000458

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. Grant Michael Wallenfelsz 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
Grant Michael Wallenfelsz, MD Psc 455 Box 208, Fpo, AP 96540-0003 Ph: () -	Grant Michael Wallenfelsz, MD Bldg #50 Farenholt Ave, Agana Heights, GU 96910 Ph: (671) 344-9340

Reviews and Comments

Emergency Medicine Doctors in Agana Heights, GU

Mallori Marie Wilson, Emergency Medicine Medicare: May Accept Medicare Assignments Practice Location: U.s. Naval Hospital Guam, Agana Heights, GU 96910 Phone: 671-344-9340
Dr. Thomas C Baugh, D.O. Emergency Medicine Medicare: Accepting Medicare Assignments Practice Location: U.s. Naval Hospital Guam, Farenholt Street, Building K-1, Agana Heights, GU 96919 Phone: 671-344-9232
Dr. Alexander Janson Salazar, M.D. Emergency Medicine Medicare: Accepting Medicare Assignments Practice Location: Farenholt Ave, Bldg 50, Agana Heights, GU 96910 Phone: 671-344-9232
Dr. Christopher Boyd Chisholm, MD Emergency Medicine Medicare: Not Enrolled in Medicare Practice Location: Us Naval Hospital Guam, Farenholt Ave Bld K1, Agana Heights, GU 96919 Phone: 671-344-9619
Dr. John T Haggerty, D.O. Emergency Medicine Medicare: Accepting Medicare Assignments Practice Location: Bldg 50, Farenholt Ave, Agana Heights, GU 96910 Phone: 671-344-9340
Daniel Rupert Neren, MD Emergency Medicine Medicare: Accepting Medicare Assignments Practice Location: U.s. Naval Hospital Guam, Bldg 50, Farenholt Ave, Agana Heights, GU 96910 Phone: 671-344-9340

Grant Michael Wallenfelsz, MD - Medicare Emergency Medicine in Agana Heights, GU