Dr Cyrene D Grothaus-day, MD in Fenton, MO

Dr Cyrene D Grothaus-day, MD is a medicare enrolled "Anesthesiology - Pediatric Anesthesiology" physician in Fenton, Missouri. Her current practice location is 1378 Mosswoods Dr, Fenton, Missouri. You can reach out to her office (for appointments etc.) via phone at (636) 861-1676.

Dr Cyrene D Grothaus-day is licensed to practice in Missouri (license number 2003019558) 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 1407872625.

Contact Information

	Dr Cyrene D Grothaus-day, MD
	1378 Mosswoods Dr, Fenton, MO 63026-7226
	(636) 861-1676
	Not Available

Map and Direction

Physician's Profile

Full Name	Dr Cyrene D Grothaus-day
Gender	Female
Speciality	Anesthesiology - Pediatric Anesthesiology
Location	1378 Mosswoods Dr, Fenton, Missouri
Accepts Medicare Assignments	Medicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.

NPI Data:

NPI Number: 1407872625
Provider Enumeration Date: 07/14/2006
Last Update Date: 09/08/2025

Medicare PECOS Information:

PECOS PAC ID: 8022917624
Enrollment ID: I20040102000499

Medical Identifiers

Medical identifiers for Dr Cyrene D Grothaus-day such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1407872625	NPI	-	NPPES
204893622	Medicaid	MO
036126419	Medicaid	IL
336	Other		MO-BLUE SHIELD

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207LP3000X	Anesthesiology - Pediatric Anesthesiology	2003019558 (Missouri)	Primary
207LP3000X	Anesthesiology - Pediatric Anesthesiology	036-126419 (Illinois)	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. Dr Cyrene D Grothaus-day allows following entities to bill medicare on her behalf.

Entity Name	Resource Anesthesiology Associates Of Mo Llc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1396116521 PECOS PAC ID: 0042514150 Enrollment ID: O20160210002213

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 Cyrene D Grothaus-day 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 Cyrene D Grothaus-day, MD 335 Davis Dr, Holts Summit, MO 65043-2135 Ph: (561) 320-2958	Dr Cyrene D Grothaus-day, MD 1378 Mosswoods Dr, Fenton, MO 63026-7226 Ph: (636) 861-1676

Reviews and Comments

Anesthesiology Doctors in Fenton, MO

Dr. Michael Scott Boedefeld, MD Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 1055 Bowles Ave Ste 202, Fenton, MO 63026 Phone: 636-386-7222 Fax: 636-386-7810
Stacey A Mormol, CRNA Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 1015 Bowles Ave, Fenton, MO 63026 Phone: 636-496-2000
Marlayna F Schaffer, CRNA Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 1015 Bowles Ave, Fenton, MO 63026 Phone: 636-496-2000

Dr Cyrene D Grothaus-day, MD - Medicare Anesthesiology in Fenton, MO