John Francis Keaney Iii, in Boston, MA - Medicare Internal Medicine

John Francis Keaney Iii, is a medicare enrolled "Internal Medicine" physician in Boston, Massachusetts. His current practice location is 394 Harrison Ave, Boston, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (617) 903-5000.

John Francis Keaney Iii is licensed to practice in Massachusetts (license number 1023073) 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 1598384844.

Contact Information

	John Francis Keaney Iii,
	394 Harrison Ave, Boston, MA 02118-2212
	(617) 903-5000
	Not Available

Map and Direction

Physician's Profile

Full Name	John Francis Keaney Iii
Gender	Male
Speciality	Internal Medicine
Location	394 Harrison Ave, Boston, Massachusetts
Accepts Medicare Assignments	Medicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.

NPI Data:

NPI Number: 1598384844
Provider Enumeration Date: 04/15/2020
Last Update Date: 07/10/2025

Medicare PECOS Information:

PECOS PAC ID: 1850714742
Enrollment ID: I20240910002387

Medical Identifiers

Medical identifiers for John Francis Keaney Iii such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1598384844	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207R00000X	Internal Medicine	327523 (New York)	Secondary
390200000X	Student In An Organized Health Care Education/training Program	(* (Not Available))	Secondary
207R00000X	Internal Medicine	1023073 (Massachusetts)	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. John Francis Keaney Iii allows following entities to bill medicare on his behalf.

Entity Name	Mount Sinai School Of Medicine
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1528538774 PECOS PAC ID: 0648408575 Enrollment ID: O20140122000814

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. John Francis Keaney Iii 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
John Francis Keaney Iii, 1 Embarcadero Ctr Ste 1900, San Francisco, CA 94111-3723 Ph: (415) 658-6791	John Francis Keaney Iii, 394 Harrison Ave, Boston, MA 02118-2212 Ph: (617) 903-5000

Reviews and Comments

Internal Medicine Doctors in Boston, MA

Kaitlyn My-tu Lam, MBBS Internal Medicine Medicare: Not Enrolled in Medicare Practice Location: Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114 Phone: 617-724-7738
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Meghan E Sise, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114 Phone: 617-726-2862
Aaron Dickstein, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 800 Washington St, Box 233, Boston, MA 02111 Phone: 617-636-5883 Fax: 617-636-9292
Dr. Felicia Elizabeth Patch, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 801 Massachusetts Ave, Crosstown 2, Boston, MA 02118 Phone: 617-414-4376 Fax: 617-414-4676

John Francis Keaney Iii, - Medicare Internal Medicine in Boston, MA