Dr Charles Willis Callahan, DO in Washington, DC

Dr Charles Willis Callahan, DO is a medicare enrolled "Pediatrics - Pediatric Pulmonology" physician in Washington, District Of Columbia. His current practice location is Walter Reed Army Medical Center, Washington, District Of Columbia. You can reach out to his office (for appointments etc.) via phone at (202) 782-8397.

Dr Charles Willis Callahan is licensed to practice in Hawaii (license number DOS719) 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 1295823557.

Contact Information

	Dr Charles Willis Callahan, DO
	Walter Reed Army Medical Center, Washington, DC 20907-1234
	(202) 782-8397
	(202) 782-4914

Map and Direction

Physician's Profile

Full Name	Dr Charles Willis Callahan
Gender	Male
Speciality	Pediatrics - Pediatric Pulmonology
Location	Walter Reed Army Medical Center, Washington, District Of Columbia
Accepts Medicare Assignments	Medicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.

NPI Data:

NPI Number: 1295823557
Provider Enumeration Date: 10/11/2006
Last Update Date: 10/11/2023

Medicare PECOS Information:

PECOS PAC ID: 5193711489
Enrollment ID: I20151216000769

Medical Identifiers

Medical identifiers for Dr Charles Willis Callahan such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1295823557	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
2080P0214X	Pediatrics - Pediatric Pulmonology	DOS719 (Hawaii)	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 Charles Willis Callahan allows following entities to bill medicare on his behalf.

Entity Name	University Of Maryland Pediatric Associates, Pa
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1528163912 PECOS PAC ID: 6800888678 Enrollment ID: O20040401000195

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 Charles Willis Callahan 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 Charles Willis Callahan, DO 13104 Collingwood Terrace, Silver Spring, MD 20904-1234 Ph: (202) 782-8397	Dr Charles Willis Callahan, DO Walter Reed Army Medical Center, Washington, DC 20907-1234 Ph: (202) 782-8397

Reviews and Comments

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Dr Charles Willis Callahan, DO - Medicare Pediatrics in Washington, DC