Margaret Callahan, MD in Farmington, CT - Medicare Medical Oncology

Margaret Callahan, MD is a medicare enrolled "Internal Medicine - Medical Oncology" physician in Farmington, Connecticut. She graduated from medical school in 2007 and has 17 years of diverse experience with area of expertise as Medical Oncology. She is a member of the group practice Memorial Developmental Chemo Group, Memorial Solid Tumor Group and her current practice location is 263 Farmington Ave, Farmington, Connecticut. You can reach out to her office (for appointments etc.) via phone at (860) 679-2100.

Margaret Callahan is licensed to practice in Connecticut (license number 075986) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1508098534.

Contact Information

	Margaret Callahan, MD
	263 Farmington Ave, Farmington, CT 06030
	(860) 679-2100
	Not Available

Map and Direction

Physician's Profile

Full Name	Margaret Callahan
Gender	Female
Speciality	Medical Oncology
Experience	17 Years
Location	263 Farmington Ave, Farmington, Connecticut
Accepts Medicare Assignments	Yes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.

Medical Education and Training:

Margaret Callahan graduated from medical school in 2007

NPI Data:

NPI Number: 1508098534
Provider Enumeration Date: 08/09/2009
Last Update Date: 01/16/2024

Medicare PECOS Information:

PECOS PAC ID: 9739313719
Enrollment ID: I20131004000480

Medical Identifiers

Medical identifiers for Margaret Callahan such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1508098534	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RX0202X	Internal Medicine - Medical Oncology	075986 (Connecticut)	Primary
207RX0202X	Internal Medicine - Medical Oncology	251318-1 (New York)	Secondary

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Memorial Developmental Chemo Group	5395636419	68
Memorial Solid Tumor Group	4082503354	273

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. Margaret Callahan allows following entities to bill medicare on her behalf.

Entity Name	Memorial Solid Tumor Group
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1699746172 PECOS PAC ID: 4082503354 Enrollment ID: O20040313000668

Entity Name	Memorial Developmental Chemo Group
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1912978487 PECOS PAC ID: 5395636419 Enrollment ID: O20040320000110

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. Margaret 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
Margaret Callahan, MD 263 Farmington Ave, Farmington, CT 06030-8082 Ph: (860) 679-2100	Margaret Callahan, MD 263 Farmington Ave, Farmington, CT 06030 Ph: (860) 679-2100

Reviews and Comments

Internal Medicine Doctors in Farmington, CT

Maroun Sfeir, Internal Medicine Medicare: Not Enrolled in Medicare Practice Location: 263 Farmington Avenue, Farmington, CT 06030 Phone: 860-679-2980 Fax: 860-679-4334
Andrew Arnold, MD Internal Medicine Medicare: Medicare Enrolled Practice Location: 263 Farmington Ave, Farmington, CT 06030 Phone: 860-679-3245 Fax: 860-679-1867
Dr. Neelam Tailor, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 263 Farmington Avenue, Farmington, CT 06030 Phone: 860-679-4763 Fax: 860-479-4624
Dr. David K. Bowers, MD Internal Medicine Medicare: Medicare Enrolled Practice Location: 263 Farmington Ave, Farmington, CT 06032 Phone: 860-679-4477 Fax: 860-679-1025
Scott R Allen, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 263 Farmington Ave, Farmington, CT 06030 Phone: 860-679-4477 Fax: 860-679-1025
Carl D Malchoff, MD Internal Medicine Medicare: Not Enrolled in Medicare Practice Location: 263 Farmington Ave, Farmington, CT 06030 Phone: 860-679-3245 Fax: 860-679-1867
Beatriz R Esayag-tendler, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 263 Farmington Ave, Farmington, CT 06030 Phone: 860-679-3343 Fax: 860-679-4256

Margaret Callahan, MD - Medicare Medical Oncology in Farmington, CT