Mackenzie Anne Smith Steck, MD in Saint Louis, MO

Mackenzie Anne Smith Steck, MD is a medicare enrolled "Internal Medicine - Critical Care Medicine" physician in Saint Louis, Missouri. Her current practice location is 1225 S Grand Blvd, Saint Louis, Missouri. You can reach out to her office (for appointments etc.) via phone at (314) 977-4680.

Mackenzie Anne Smith Steck is licensed to practice in Missouri (license number 2022033891) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1619436441.

Contact Information

	Mackenzie Anne Smith Steck, MD
	1225 S Grand Blvd, Saint Louis, MO 63104-1016
	(314) 977-4680
	Not Available

Map and Direction

Physician's Profile

Full Name	Mackenzie Anne Smith Steck
Gender	Female
Speciality	Internal Medicine - Critical Care Medicine
Location	1225 S Grand Blvd, Saint Louis, Missouri
Accepts Medicare Assignments	Medicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.

NPI Data:

NPI Number: 1619436441
Provider Enumeration Date: 03/19/2019
Last Update Date: 04/28/2026

Medicare PECOS Information:

PECOS PAC ID: 9739413980
Enrollment ID: I20220915001421

Medical Identifiers

Medical identifiers for Mackenzie Anne Smith Steck such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1619436441	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RC0200X	Internal Medicine - Critical Care Medicine	2022033891 (Missouri)	Primary
207R00000X	Internal Medicine	2022033891 (Missouri)	Secondary
207RP1001X	Internal Medicine - Pulmonary Disease	2022033891 (Missouri)	Secondary

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. Mackenzie Anne Smith Steck allows following entities to bill medicare on her behalf.

Entity Name	Slh Physicians Llc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1881668051 PECOS PAC ID: 9830132653 Enrollment ID: O20050602000941

Entity Name	Ssm Health Care Group
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1306589544 PECOS PAC ID: 0143608372 Enrollment ID: O20220531002655

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. Mackenzie Anne Smith Steck 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
Mackenzie Anne Smith Steck, MD 1402 S Grand Blvd, Saint Louis, MO 63104-1004 Ph: (314) 577-8762	Mackenzie Anne Smith Steck, MD 1225 S Grand Blvd, Saint Louis, MO 63104-1016 Ph: (314) 977-4680

Reviews and Comments

Internal Medicine Doctors in Saint Louis, MO

Dr. Margaret Leighton Mcnairy, MD Critical Care Medicine 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
Conor Mccartney, M.D. Critical Care Medicine Medicare: Accepting Medicare Assignments Practice Location: 915 N Grand Blvd, Saint Louis, MO 63106 Phone: 314-652-4100
Dr. Faris Adam Bakeer, MD Critical Care Medicine 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 Critical Care Medicine 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. Randy Olivier Laine, MD Critical Care Medicine 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 Critical Care Medicine 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, Critical Care Medicine Medicare: Medicare Enrolled Practice Location: 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110 Phone: 314-362-5000

Mackenzie Anne Smith Steck, MD - Medicare Internal Medicine in Saint Louis, MO