Gregorio J Guillen, MD in Perth Amboy, NJ - Medicare Internal Medicine

Gregorio J Guillen, MD is a medicare enrolled "Internal Medicine - Geriatric Medicine" physician in Perth Amboy, New Jersey. He graduated from medical school in 1982 and has 43 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 400 State St. Suite 2, Perth Amboy, New Jersey. You can reach out to his office (for appointments etc.) via phone at (732) 442-6020.

Gregorio J Guillen is licensed to practice in New Jersey (license number MA56159) 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 1538252226.

Contact Information

	Gregorio J Guillen, MD
	400 State St. Suite 2, Perth Amboy, NJ 08861
	(732) 442-6020
	(732) 442-1995

Map and Direction

Physician's Profile

Full Name	Gregorio J Guillen
Gender	Male
Speciality	Internal Medicine
Experience	43 Years
Location	400 State St. Suite 2, Perth Amboy, New Jersey
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:

Gregorio J Guillen graduated from medical school in 1982

NPI Data:

NPI Number: 1538252226
Provider Enumeration Date: 10/02/2006
Last Update Date: 08/06/2013

Medicare PECOS Information:

PECOS PAC ID: 5991756926
Enrollment ID: I20050207000626

Medical Identifiers

Medical identifiers for Gregorio J Guillen such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1538252226	NPI	-	NPPES
6523706	Medicaid	NJ

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RG0300X	Internal Medicine - Geriatric Medicine	MA56159 (New Jersey)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Hackensack Meridian Health Jfk At Home	Clark, NJ	Home health agency
Raritan Bay Medical Center Perth Amboy Division	Perth amboy, NJ	Hospital
Alameda Center For Rehabilitation And Healthcare	Perth amboy, NJ	Nursing home

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. Gregorio J Guillen allows following entities to bill medicare on his behalf.

Entity Name	Gregorio J. Guillen Md, Pc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1518052950 PECOS PAC ID: 0446202006 Enrollment ID: O20050211000667

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. Gregorio J Guillen 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
Gregorio J Guillen, MD Po Box 1608, Perth Amboy, NJ 08862-1608 Ph: (732) 442-6020	Gregorio J Guillen, MD 400 State St. Suite 2, Perth Amboy, NJ 08861 Ph: (732) 442-6020

Reviews and Comments

Internal Medicine Doctors in Perth Amboy, NJ

Pankaj R Shirolawala, M.D. Geriatric Medicine Medicare: Accepting Medicare Assignments Practice Location: 609 Amboy Ave Ste 101, Perth Amboy, NJ 08861 Phone: 732-442-2211 Fax: 732-326-0517
Dr. Mahesh H Bhagat, MD Geriatric Medicine Medicare: Medicare Enrolled Practice Location: 530 New Brunswick Ave, Perth Amboy, NJ 08861 Phone: 732-442-3700
Dr. Mohammed Islam, MD Geriatric Medicine Medicare: Accepting Medicare Assignments Practice Location: Rbmc 530 New Brunswick Ave, Dept Of Internal Medicine, Perth Amboy, NJ 08861 Phone: 732-324-5080 Fax: 732-324-4669
Poonam Pamini Jani, M.D. Geriatric Medicine Medicare: Accepting Medicare Assignments Practice Location: 275 Hobart St, Perth Amboy, NJ 08861 Phone: 732-376-9333 Fax: 732-293-0139
Dr. Alissa Kay Holman, M.D. Geriatric Medicine Medicare: Accepting Medicare Assignments Practice Location: 530 New Brunswick Ave, Perth Amboy, NJ 08861 Phone: 732-442-3700
Cynthia Vuittonet, M.D. Geriatric Medicine Medicare: Accepting Medicare Assignments Practice Location: 275 Hobart St, Perth Amboy, NJ 08861 Phone: 732-376-9333
Sonya Shah, MD Geriatric Medicine Medicare: Accepting Medicare Assignments Practice Location: 530 New Brunswick Ave, Perth Amboy, NJ 08861 Phone: 324-423-7007 Fax: 948-243-8064

Gregorio J Guillen, MD - Medicare Internal Medicine in Perth Amboy, NJ