Dr Rosalyn Sheree Warren, LCSW in Lancaster, CA - Medicare Social Worker Provider

Dr Rosalyn Sheree Warren, LCSW is a medicare enrolled "Social Worker - Clinical" provider in Lancaster, California. Her current practice location is 44228 Hampton St, Lancaster, California. You can reach out to her office (for appointments etc.) via phone at (909) 728-3567.

Dr Rosalyn Sheree Warren is licensed to practice in California (license number 20937) 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 1073645677.

Contact Information

	Dr Rosalyn Sheree Warren, LCSW
	44228 Hampton St, Lancaster, CA 93536-7512
	(909) 728-3567
	Not Available

Map and Direction

Healthcare Provider's Profile

Full Name	Dr Rosalyn Sheree Warren
Gender	Female
Speciality	Social Worker - Clinical
Location	44228 Hampton St, Lancaster, California
Accepts Medicare Assignments	Medicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.

NPI Data:

NPI Number: 1073645677
Provider Enumeration Date: 03/09/2007
Last Update Date: 06/02/2026

Medicare PECOS Information:

PECOS PAC ID: 6305295775
Enrollment ID: I20231211001402

Medical Identifiers

Medical identifiers for Dr Rosalyn Sheree Warren such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1073645677	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
1041C0700X	Social Worker - Clinical	13200-C (Nevada)	Secondary
1041C0700X	Social Worker - Clinical	20937 (California)	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. Dr Rosalyn Sheree Warren allows following entities to bill medicare on her behalf.

Entity Name	Pacific Coast Psychiatric Associates Inc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1023125465 PECOS PAC ID: 2567469174 Enrollment ID: O20061024000383

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 Rosalyn Sheree Warren 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 Rosalyn Sheree Warren, LCSW 44228 Hampton St, Lancaster, CA 93536-7512 Ph: (909) 728-3567	Dr Rosalyn Sheree Warren, LCSW 44228 Hampton St, Lancaster, CA 93536-7512 Ph: (909) 728-3567

Reviews and Comments

Social Worker in Lancaster, CA

Martin Patterson Tanner, LCSW Clinical Social Worker Medicare: Accepting Medicare Assignments Practice Location: 44648 15th St W, Lancaster, CA 93534 Phone: 661-463-0501
Charesse Del Shawndra Branch, Clinical Social Worker Medicare: Not Enrolled in Medicare Practice Location: 3154 Darkwood St, Lancaster, CA 93536 Phone: 661-609-9147
Angel Sheree Richard, Clinical Social Worker Medicare: May Accept Medicare Assignments Practice Location: 44443 10th St W, Lancaster, CA 93534 Phone: 661-726-2630
Mrs. Cynthia N Gonzalez, LCSW Clinical Social Worker Medicare: Not Enrolled in Medicare Practice Location: 43520 Division St, Lancaster, CA 93535 Phone: 661-266-4783 Fax: 661-266-1210
Mr. James Milton, LCSW Clinical Social Worker Medicare: Not Enrolled in Medicare Practice Location: 43839 15th St W, High Desert Medical Group, Lancaster, CA 93534 Phone: 661-945-5984 Fax: 661-951-3192
Kendall Marie Dillard, Clinical Social Worker Medicare: Not Enrolled in Medicare Practice Location: 43520 Division St, Lancaster, CA 93535 Phone: 661-266-4783 Fax: 661-266-1210
Janet Garcia, Clinical Social Worker Medicare: Medicare Enrolled Practice Location: 1652 W Avenue J, Lancaster, CA 93534 Phone: 661-249-6859

Dr Rosalyn Sheree Warren, LCSW - Medicare Clinical Social Worker in Lancaster, CA