John Walker, DO in Portland, ME - Medicare Gastroenterology

John Walker, DO is a medicare enrolled "Internal Medicine" physician in Portland, Maine. He graduated from medical school in 2013 and has 11 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Mainehealth and his current practice location is 22 Bramhall St, Portland, Maine. You can reach out to his office (for appointments etc.) via phone at (207) 662-6562.

John Walker is licensed to practice in Maine (license number DO2640) 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 1851737811.

Contact Information

	John Walker, DO
	22 Bramhall St, Portland, ME 04102-3134
	(207) 662-6562
	Not Available

Map and Direction

Physician's Profile

Full Name	John Walker
Gender	Male
Speciality	Gastroenterology
Experience	11 Years
Location	22 Bramhall St, Portland, Maine
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:

John Walker graduated from medical school in 2013

NPI Data:

NPI Number: 1851737811
Provider Enumeration Date: 05/17/2013
Last Update Date: 06/21/2016

Medicare PECOS Information:

PECOS PAC ID: 8426290701
Enrollment ID: I20160822001883

Medical Identifiers

Medical identifiers for John Walker such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1851737811	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207R00000X	Internal Medicine	DO2640 (Maine)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Southern Maine Health Care	Biddeford, ME	Hospital
Maine Medical Center	Portland, ME	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Mainehealth	7517860588	2109

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 Walker allows following entities to bill medicare on his behalf.

Entity Name	Mercy Hospital
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1629078712 PECOS PAC ID: 6103737812 Enrollment ID: O20040217000943

Entity Name	Mainehealth
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1790265502 PECOS PAC ID: 7517860588 Enrollment ID: O20040701000166

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 Walker 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 Walker, DO 300 Southborough Dr, Suite 201, South Portland, ME 04106-6914 Ph: (207) 661-2000	John Walker, DO 22 Bramhall St, Portland, ME 04102-3134 Ph: (207) 662-6562

Reviews and Comments

Internal Medicine Doctors in Portland, ME

Andrew J. Hsu, M.D. Internal Medicine Medicare: Medicare Enrolled Practice Location: 155 Fore River Pkwy, Portland, ME 04102 Phone: 207-535-1100 Fax: 207-879-8787
David A Polisner, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 144 State St, Portland, ME 04101 Phone: 207-879-3000
Brian D Moore, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 144 State St, Portland, ME 04101 Phone: 207-879-3000
Marc Stuart Hoffman, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 144 State St, Portland, ME 04101 Phone: 207-879-3265
Janet D Mcculley, D.O. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 22 Bramhall St, Portland, ME 04102 Phone: 207-662-4618
Saeeda Fatima, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 22 Bramhall St Rm 2227, Portland, ME 04102 Phone: 207-662-4618
Dr. Thalia Mayes, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 161 Marginal Way, Portland, ME 04101 Phone: 207-773-7964 Fax: 207-773-9073

John Walker, DO - Medicare Gastroenterology in Portland, ME