William Arthur Grass, ARNP in Creve Coeur, MO

William Arthur Grass, ARNP is a medicare enrolled "Nurse Practitioner - Critical Care Medicine" in Creve Coeur, Missouri. His current practice location is 10 Barnes West Dr, Creve Coeur, Missouri. You can reach out to his office (for appointments etc.) via phone at (314) 996-8270.

William Arthur Grass is licensed to practice in Florida (license number ARNP9207097) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1407854383.

Contact Information

	William Arthur Grass, ARNP
	10 Barnes West Dr, Creve Coeur, MO 63141-6287
	(314) 996-8270
	Not Available

Map and Direction

Provider's Profile

Full Name	William Arthur Grass
Gender	Male
Speciality	Nurse Practitioner - Critical Care Medicine
Location	10 Barnes West Dr, Creve Coeur, Missouri
Accepts Medicare Assignments	Medicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.

NPI Data:

NPI Number: 1407854383
Provider Enumeration Date: 07/13/2005
Last Update Date: 07/30/2025

Medicare PECOS Information:

PECOS PAC ID: 2264494988
Enrollment ID: I20041103000924

Medical Identifiers

Medical identifiers for William Arthur Grass such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1407854383	NPI	-	NPPES
Y061EY	Other	FL	MEDICARE GTBA REASSIGN
308331400	Medicaid	FL

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
363LC0200X	Nurse Practitioner - Critical Care Medicine	ARNP9207097 (Florida)	Primary

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. William Arthur Grass allows following entities to bill medicare on his behalf.

Entity Name	Florida Cancer Specialists & Research Institute, Llc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1760590962 PECOS PAC ID: 2567356058 Enrollment ID: O20040216000091

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. William Arthur Grass 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
William Arthur Grass, ARNP 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110-1003 Ph: (314) 747-3000	William Arthur Grass, ARNP 10 Barnes West Dr, Creve Coeur, MO 63141-6287 Ph: (314) 996-8270

Reviews and Comments

Nurse Practitioner Nurses in Creve Coeur, MO

Meghan M Moore, MSN, AGACNP, FNP Nurse Practitioner Medicare: Medicare Enrolled Practice Location: 621 S New Ballas Rd Ste 112a, Creve Coeur, MO 63141 Phone: 314-251-6339 Fax: 314-251-4564
Mrs. Michele F. Salvatore, WHNP-BC Nurse Practitioner Medicare: Accepting Medicare Assignments Practice Location: 555 N New Ballas Rd Ste 240, Creve Coeur, MO 63141 Phone: 314-842-0340 Fax: 314-842-0742
April Lorraine Taylor, MSN, NNP-BC Nurse Practitioner Medicare: Not Enrolled in Medicare Practice Location: 615 S New Ballas Rd, Creve Coeur, MO 63141 Phone: 314-251-6000
Marie M Webb, FNP Nurse Practitioner Medicare: Medicare Enrolled Practice Location: 650 Maryville University Dr, Creve Coeur, MO 63141 Phone: 800-627-9855
Brittany Wort, Nurse Practitioner Medicare: Not Enrolled in Medicare Practice Location: 11560 Olive Blvd, Creve Coeur, MO 63141 Phone: 314-995-7128
Machalle Akhtar Mughal, Nurse Practitioner Medicare: Medicare Enrolled Practice Location: 11560 Olive Blvd, Creve Coeur, MO 63141 Phone: 314-995-7128
Keara Cobbs, PMHNP Nurse Practitioner Medicare: Medicare Enrolled Practice Location: 12401 Olive Blvd Ste 206, Creve Coeur, MO 63141 Phone: 888-410-5230

William Arthur Grass, ARNP - Medicare Nurse Practitioner in Creve Coeur, MO