John Constantine Gretes, MD in Gloucester, VA

John Constantine Gretes, MD is a medicare enrolled "Internal Medicine - Nephrology" physician in Gloucester, Virginia. He went to Duke University School Of Medicine and graduated in 1972 and has 52 years of diverse experience with area of expertise as Nephrology. He is a member of the group practice Riverside Physician Services Inc and his current practice location is 7552 Hospital Dr Ste 302, Gloucester, Virginia. You can reach out to his office (for appointments etc.) via phone at (804) 693-9062.

John Constantine Gretes is licensed to practice in Virginia (license number 0101025205) 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 1043248453.

Contact Information

	John Constantine Gretes, MD
	7552 Hospital Dr Ste 302, Gloucester, VA 23061-4178
	(804) 693-9062
	Not Available

Map and Direction

Physician's Profile

Full Name	John Constantine Gretes
Gender	Male
Speciality	Nephrology
Experience	52 Years
Location	7552 Hospital Dr Ste 302, Gloucester, Virginia
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 Constantine Gretes attended and graduated from Duke University School Of Medicine in 1972

NPI Data:

NPI Number: 1043248453
Provider Enumeration Date: 06/28/2006
Last Update Date: 03/01/2021

Medicare PECOS Information:

PECOS PAC ID: 5991722084
Enrollment ID: I20081003000045

Medical Identifiers

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

Identifier	Type	State	Issuer
1043248453	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RN0300X	Internal Medicine - Nephrology	0101025205 (Virginia)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Rai - Medical Drive-gloucester	Gloucester, VA	Dialysis facility
Riverside Walter Reed Hospital	Gloucester, VA	Hospital
Riverside Regional Medical Center	Newport news, VA	Hospital
Riverside Doctors' Hospital Of Williamsburg	Williamsburg, VA	Hospital
Sentara Williamsburg Regional Medical Center	Williamsburg, VA	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Riverside Physician Services Inc	5092608448	738

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 Constantine Gretes allows following entities to bill medicare on his behalf.

Entity Name	Riverside Physician Services Inc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1194929026 PECOS PAC ID: 5092608448 Enrollment ID: O20040207000400

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 Constantine Gretes 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 Constantine Gretes, MD 856 J Clyde Morris Blvd, Ste A, Newport News, VA 23601-1318 Ph: () -	John Constantine Gretes, MD 7552 Hospital Dr Ste 302, Gloucester, VA 23061-4178 Ph: (804) 693-9062

Reviews and Comments

Internal Medicine Doctors in Gloucester, VA

Sherie H. Austin, M.D. Nephrology Medicare: Medicare Enrolled Practice Location: 8264 George Washington Memorial Hwy, Gloucester, VA 23061 Phone: 804-695-0305 Fax: 804-695-0804
Ms. Mary Elizabeth Adams, N.P. Nephrology Medicare: Accepting Medicare Assignments Practice Location: 7547 Medical Dr Ste 2200, Gloucester, VA 23061 Phone: 804-693-2720 Fax: 804-694-0597
Peter John Zullo, M.D. Nephrology Medicare: Accepting Medicare Assignments Practice Location: 7547 Medical Drive, Suite 2200, Gloucester, VA 23061 Phone: 804-693-2720 Fax: 804-694-0597
Dr. Andrea Jacqueline Alejo, M.D. Nephrology Medicare: Accepting Medicare Assignments Practice Location: 7547 Medical Dr Ste 2200, Internal Medicine Associates Of Gloucester, Gloucester, VA 23061 Phone: 804-693-2720 Fax: 804-694-0597
Dr. Jonathan Michael Sardina, D.O. Nephrology Medicare: Medicare Enrolled Practice Location: 7547 Medical Dr Ste 2200, Gloucester, VA 23061 Phone: 804-693-2720
Bradley Brian Hendricks, D.O. Nephrology Medicare: Accepting Medicare Assignments Practice Location: 7519 Hospital Dr, Gloucester, VA 23061 Phone: 804-693-8800

John Constantine Gretes, MD - Medicare Nephrology in Gloucester, VA