Dr Alexander George Chamessian, MD PHD in Creve Coeur, MO

Dr Alexander George Chamessian, MD PHD is a medicare enrolled "Physical Medicine & Rehabilitation" physician in Creve Coeur, Missouri. He graduated from medical school in 2019 and has 6 years of diverse experience with area of expertise as Anesthesiology. He is a member of the group practice Post-acute Physicians Of Missouri, Pc, Washington University and his current practice location is 1044 N Mason Rd, Dept Anesthesiology, Ste L30, Creve Coeur, Missouri. You can reach out to his office (for appointments etc.) via phone at (314) 996-8631.

Dr Alexander George Chamessian is licensed to practice in Missouri (license number 2023022542) 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 1275194839.

Contact Information

	Dr Alexander George Chamessian, MD PHD
	1044 N Mason Rd, Dept Anesthesiology, Ste L30, Creve Coeur, MO 63141-6431
	(314) 996-8631
	(314) 996-8742

Map and Direction

Physician's Profile

Full Name	Dr Alexander George Chamessian
Gender	Male
Speciality	Anesthesiology
Experience	6 Years
Location	1044 N Mason Rd, Creve Coeur, 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 Alexander George Chamessian graduated from medical school in 2019

NPI Data:

NPI Number: 1275194839
Provider Enumeration Date: 06/25/2019
Last Update Date: 11/21/2025

Medicare PECOS Information:

PECOS PAC ID: 4284960295
Enrollment ID: I20240712000205

Medical Identifiers

Medical identifiers for Dr Alexander George Chamessian such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1275194839	NPI	-	NPPES
200072045	Medicaid	MO

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
2081P2900X	Physical Medicine & Rehabilitation - Pain Medicine	2023022542 (Missouri)	Secondary
208100000X	Physical Medicine & Rehabilitation	2023022542 (Missouri)	Primary
207LP2900X	Anesthesiology - Pain Medicine	2023022542 (Missouri)	Secondary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Barnes-jewish West County Hospital	Creve coeur, MO	Hospital
Barnes Jewish Hospital	Saint louis, MO	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Post-acute Physicians Of Missouri, Pc	6002121126	12
Washington University	9830008770	2782

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 Alexander George Chamessian allows following entities to bill medicare on his behalf.

Entity Name	Washington University
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1528005642 PECOS PAC ID: 9830008770 Enrollment ID: O20040129000651

Entity Name	Post-acute Physicians Of Missouri, Pc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1164818290 PECOS PAC ID: 6002121126 Enrollment ID: O20150819007678

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 Alexander George Chamessian 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 Alexander George Chamessian, MD PHD Po Box 7412011, Chicago, IL 60674-2011 Ph: (314) 996-8631	Dr Alexander George Chamessian, MD PHD 1044 N Mason Rd, Dept Anesthesiology, Ste L30, Creve Coeur, MO 63141-6431 Ph: (314) 996-8631

Reviews and Comments

Physical Medicine & Rehabilitation Doctors in Creve Coeur, MO

Dr. Drupadi Kumar, M.D. Physical Medicine & Rehabilitation Medicare: Accepting Medicare Assignments Practice Location: 916 Bellerive Manor Dr, Creve Coeur, MO 63141 Phone: 314-275-8505
Dr. James Thomas Doll, D.O. Physical Medicine & Rehabilitation Medicare: Not Enrolled in Medicare Practice Location: 633 Emerson Rd, Suite 100, Creve Coeur, MO 63141 Phone: 314-991-4344 Fax: 314-991-4345
Ruby Tsu-yuan Pien, PTA Physical Medicine & Rehabilitation Medicare: Not Enrolled in Medicare Practice Location: 10332 Old Olive Street Rd, Creve Coeur, MO 63141 Phone: 314-567-4707

Dr Alexander George Chamessian, MD PHD - Medicare Anesthesiology in Creve Coeur, MO