Dr David John Westrich Jr, MD in Saint Charles, MO

Dr David John Westrich Jr, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Saint Charles, Missouri. He graduated from medical school in 2016 and has 9 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Osu Internal Medicine Llc and his current practice location is 400 1st Capitol Dr Ste 201, Saint Charles, Missouri. You can reach out to his office (for appointments etc.) via phone at (636) 669-2332.

Dr David John Westrich Jr is licensed to practice in Missouri (license number 2025021152) 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 1679927230.

Contact Information

	Dr David John Westrich Jr, MD
	400 1st Capitol Dr Ste 201, Saint Charles, MO 63301-2882
	(636) 669-2332
	Not Available

Map and Direction

Physician's Profile

Full Name	Dr David John Westrich Jr
Gender	Male
Speciality	Gastroenterology
Experience	9 Years
Location	400 1st Capitol Dr Ste 201, Saint Charles, 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 David John Westrich Jr graduated from medical school in 2016

NPI Data:

NPI Number: 1679927230
Provider Enumeration Date: 04/20/2016
Last Update Date: 07/25/2025

Medicare PECOS Information:

PECOS PAC ID: 2365739604
Enrollment ID: I20220713002262

Medical Identifiers

Medical identifiers for Dr David John Westrich Jr such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1679927230	NPI	-	NPPES
0493806	Medicaid	OH

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RG0100X	Internal Medicine - Gastroenterology	35145213 (Ohio)	Secondary
207RG0100X	Internal Medicine - Gastroenterology	2025021152 (Missouri)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Ohio State University State Health System	Columbus, OH	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Osu Internal Medicine Llc	5496651408	1067

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 David John Westrich Jr allows following entities to bill medicare on his behalf.

Entity Name	Osu Internal Medicine Llc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1740231448 PECOS PAC ID: 5496651408 Enrollment ID: O20031210000658

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 David John Westrich Jr 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 David John Westrich Jr, MD Po Box 955534, Saint Louis, MO 63195-5534 Ph: () -	Dr David John Westrich Jr, MD 400 1st Capitol Dr Ste 201, Saint Charles, MO 63301-2882 Ph: (636) 669-2332

Reviews and Comments

Internal Medicine Doctors in Saint Charles, MO

Lawrence Stephen Tierney, M.D. Gastroenterology Medicare: May Accept Medicare Assignments Practice Location: 400 1st Capitol Dr Ste 201, Saint Charles, MO 63301 Phone: 636-669-2332
Syed A Khalid, M.D. Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 300 1st Capitol Dr, Saint Charles, MO 63301 Phone: 636-647-5000 Fax: 636-947-5090
Guangchen Zou, M.D. Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 1820 Zumbehl Rd Ste 120, Saint Charles, MO 63303 Phone: 314-801-5350 Fax: 314-801-5323
Dr. Stephen M Comens, M.D. Gastroenterology Medicare: Not Enrolled in Medicare Practice Location: 1551 Wall St, 4th Floor, Saint Charles, MO 63303 Phone: 636-669-2220 Fax: 636-669-2401
Dr. Shephali Himanshu Wulff, D.O Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 330 1st Capitol Dr Ste 260, Saint Charles, MO 63301 Phone: 636-925-0900
Keith Wickenhauser, MD Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 711 Veterans Memorial Pkwy Ste 300, Saint Charles, MO 63303 Phone: 636-669-2350
Jerome E Thurman, M.D.,F.A.C.E. Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 711 Veterans Memorial Pkwy Ste 200, Saint Charles, MO 63303 Phone: 636-669-2219 Fax: 636-669-2380

Dr David John Westrich Jr, MD - Medicare Gastroenterology in Saint Charles, MO