Dr Michael Ansstas, MD in Saint Louis, MO - Medicare Gastroenterology

Dr Michael Ansstas, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Saint Louis, Missouri. He graduated from medical school in 2002 and has 23 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Archbold Medical Group, Inc. and his current practice location is 11155 Dunn Rd Ste 309e, Saint Louis, Missouri. You can reach out to his office (for appointments etc.) via phone at (314) 953-8799.

Dr Michael Ansstas is licensed to practice in Missouri (license number 2012032351) 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 1851658728.

Contact Information

	Dr Michael Ansstas, MD
	11155 Dunn Rd Ste 309e, Saint Louis, MO 63136-6111
	(314) 953-8799
	Not Available

Map and Direction

Physician's Profile

Full Name	Dr Michael Ansstas
Gender	Male
Speciality	Gastroenterology
Experience	23 Years
Location	11155 Dunn Rd Ste 309e, Saint Louis, Missouri
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:

Dr Michael Ansstas graduated from medical school in 2002

NPI Data:

NPI Number: 1851658728
Provider Enumeration Date: 04/17/2012
Last Update Date: 10/27/2025

Medicare PECOS Information:

PECOS PAC ID: 5092084277
Enrollment ID: I20230628002123

Medical Identifiers

Medical identifiers for Dr Michael Ansstas such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1851658728	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RG0100X	Internal Medicine - Gastroenterology	036153515 (Illinois)	Secondary
207RG0100X	Internal Medicine - Gastroenterology	2012032351 (Missouri)	Primary
207RG0100X	Internal Medicine - Gastroenterology	A160085 (California)	Secondary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
John D Archbold Memorial Hospital	Thomasville, GA	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Archbold Medical Group, Inc.	8123196383	68

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. Dr Michael Ansstas allows following entities to bill medicare on his behalf.

Entity Name	Archbold Medical Group, Inc.
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1831353036 PECOS PAC ID: 8123196383 Enrollment ID: O20081001000632

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. Dr Michael Ansstas 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
Dr Michael Ansstas, MD 11155 Dunn Rd Ste 309e, Saint Louis, MO 63136-6111 Ph: (314) 953-8799	Dr Michael Ansstas, MD 11155 Dunn Rd Ste 309e, Saint Louis, MO 63136-6111 Ph: (314) 953-8799

Reviews and Comments

Internal Medicine Doctors in Saint Louis, MO

Conor Mccartney, M.D. Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 915 N Grand Blvd, Saint Louis, MO 63106 Phone: 314-652-4100
Dr. Faris Adam Bakeer, MD Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 1 Barnes Jewish Hospital Plz, Div Im Hospitalist, Saint Louis, MO 63110 Phone: 314-362-1700 Fax: 314-362-9878
Dr. Rehan Rais, MD Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 1 Barnes Jewish Hospital Plz, Div Im Hospitalist, Saint Louis, MO 63110 Phone: 314-362-1700 Fax: 314-362-9878
Nathan Farkas, M.D. Gastroenterology Medicare: Not Enrolled in Medicare Practice Location: 1 Barnes Jew Hosp Plz, Saint Louis, MO 63110 Phone: 314-362-1930
Dr. Randy Olivier Laine, MD Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 1 Barnes Jewish Hospital Plz, Div Im Hospitalist, Saint Louis, MO 63110 Phone: 314-362-1700 Fax: 314-362-9878
Dr. Erin Leigh Dyer, MD Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 4901 Forest Park Ave, Div Im General Med, Ste 241, Saint Louis, MO 63108 Phone: 314-362-5060 Fax: 314-362-6959
Nakul Shah, Gastroenterology Medicare: Medicare Enrolled Practice Location: 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110 Phone: 314-362-5000

Dr Michael Ansstas, MD - Medicare Gastroenterology in Saint Louis, MO