Nathan E Riddell, MD in Worcester, MA - Medicare Internal Medicine

Nathan E Riddell, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Worcester, Massachusetts. He graduated from medical school in 2013 and has 12 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Tvcg Ste Pllc, Lgh Merrimack Valley Cardiology Associates, Llc and his current practice location is 55 Lake Ave N, Worcester, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (508) 334-1000.

Nathan E Riddell is licensed to practice in Massachusetts (license number 273386) 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 1245670983.

Contact Information

	Nathan E Riddell, MD
	55 Lake Ave N, Worcester, MA 01655-0002
	(508) 334-1000
	Not Available

Map and Direction

Physician's Profile

Full Name	Nathan E Riddell
Gender	Male
Speciality	Internal Medicine
Experience	12 Years
Location	55 Lake Ave N, Worcester, Massachusetts
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:

Nathan E Riddell graduated from medical school in 2013

NPI Data:

NPI Number: 1245670983
Provider Enumeration Date: 06/26/2013
Last Update Date: 03/14/2025

Medicare PECOS Information:

PECOS PAC ID: 2062643489
Enrollment ID: I20180809005466

Medical Identifiers

Medical identifiers for Nathan E Riddell such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1245670983	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207R00000X	Internal Medicine	256554 (Massachusetts)	Secondary
207RC0000X	Internal Medicine - Cardiovascular Disease	273386 (Massachusetts)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Lowell General Hospital	Lowell, MA	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Tvcg Ste Pllc	2062958846	6
Lgh Merrimack Valley Cardiology Associates, Llc	4082886569	22

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. Nathan E Riddell allows following entities to bill medicare on his behalf.

Entity Name	Steward Medical Group Inc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1629398219 PECOS PAC ID: 2860688728 Enrollment ID: O20101119000007

Entity Name	Steward Medical Group Inc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1629398219 PECOS PAC ID: 2860688728 Enrollment ID: O20101119000332

Entity Name	Lgh Merrimack Valley Cardiology Associates, Llc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1952695884 PECOS PAC ID: 4082886569 Enrollment ID: O20111005000134

Entity Name	Sound Physicians Of Massachusetts Ii Pc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1306376397 PECOS PAC ID: 9436421567 Enrollment ID: O20170823003703

Entity Name	Tvcg Ste Pllc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1215661780 PECOS PAC ID: 2062958846 Enrollment ID: O20240729003185

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. Nathan E Riddell 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
Nathan E Riddell, MD 55 Lake Ave N, Worcester, MA 01655-0002 Ph: (508) 334-1000	Nathan E Riddell, MD 55 Lake Ave N, Worcester, MA 01655-0002 Ph: (508) 334-1000

Reviews and Comments

Internal Medicine Doctors in Worcester, MA

Dr. Adepeju Gbadebo Champion, M.D. Cardiovascular Disease Medicare: Not Enrolled in Medicare Practice Location: 55 Lake Ave N, Worcester, MA 01655 Phone: 508-334-2731 Fax: 774-442-4672
Madaiah Lokeshwari, M.D. Cardiovascular Disease Medicare: Accepting Medicare Assignments Practice Location: 123 Summer St, Worcester, MA 01608 Phone: 508-363-6849
Sowmya Korapati, Cardiovascular Disease Medicare: Accepting Medicare Assignments Practice Location: 55 Lake Ave N, Worcester, MA 01655 Phone: 508-334-3550 Fax: 774-442-6715
Lihong Huo, M.D. Cardiovascular Disease Medicare: Accepting Medicare Assignments Practice Location: 123 Summer St Ste 655, Worcester, MA 01608 Phone: 888-277-0071 Fax: 508-363-9037
Dr. Herman Anthony Carneiro, MD Cardiovascular Disease Medicare: Accepting Medicare Assignments Practice Location: 55 Lake Ave N, Worcester, MA 01655 Phone: 508-334-3452
Irma Nadeem Hashmi, DO Cardiovascular Disease Medicare: Accepting Medicare Assignments Practice Location: 55 Lake Ave N, Worcester, MA 01655 Phone: 508-334-1000
Dr. Madhav Sharma, MD Cardiovascular Disease Medicare: Accepting Medicare Assignments Practice Location: 123 Summer St, Worcester, MA 01608 Phone: 508-363-5438

Nathan E Riddell, MD - Medicare Internal Medicine in Worcester, MA