​​​​​​​​​County Mental Health Plan Arbitrators List

According to the California Code of Regulations, Title 9, Sections 1810.228, 1850.405, 1850.415, and 1850.420, Mental Health Plans (MHP) are required to identify at least one individual that is available to serve as an arbitrator. Under the arbitration process, the MHP of the beneficiary may be determined to be different than specified in the Medi-Cal Eligibility Data System (MEDS). The “MHP of the beneficiary" means the MHP is responsible for providing or arranging and paying for the Specialty Mental Health Services (SMHS) for a beneficiary.

The Medi-Cal Eligibility Data System (MEDS) identifies the MHP of the beneficiary in a field labeled “County of Responsibility." The MHP for the county listed as the “County of Responsibility" in MEDS is the MHP responsible for providing or arranging and paying for a particular beneficiary's SMHS, including out-of-county hospitalizations. In the event of a dispute that cannot be resolved between the MHPs, the Behavioral Health Information Notice 21-072 addresses the arbitration between MHPs and requires the implementation of an arbitrator's decision within 14 calendar days.​

Revised August 2025

​​Alameda

Alpine

Nichole Williamson
CAO/HHSA Director
40 Diamond Valley Road
Markleeville, CA 96120
(530) 694-1816
mnwilliamson@alpinecountyca.gov

Raechel Razzano
QI/UR Coordinator
10877 Conductor Blvd Suite 300
Sutter Creek, CA 95685
(209) 223-6394
rrazzano@amadorgov.org

Butte

WThorpe@calaverascounty.gov

Heather Bullis-Cruz
Compliance Officer
162 East Carson St
Colusa, CA 95932
(530) 458-0533
hbulliscruz@countyofcolusa.com

Contra Costa     

Suzanne Tavano
Director of Behavioral Health Services
1340 Arnold Drive Suite 200
Martinez, CA 94553
(925) 957-5169
Suzanne.Tavano@cchealth.org

Del Norte 

Elizabeth Vasquez
Compliance Officer
1925 E. Dakota Ave
Fresno, CA 93726
(559) 600-6728
evasquez@fresnocountyca.gov

Michael Muro
Program Manager and Plan Administration Division
1925 E. Dakota Ave
Fresno, CA 93726
(559) 600-6063
mmuro@fresnocountyca.gov

Glenn       

Alysia Miller
Quality Improvement and Compliance Program Manager
242 N. Villa Ave
Willows, CA 95988
(530) 934-6582
amiller@countyofglenn.net

Humboldt

Paul Bugnacki
Deputy Director
720 Wood St
Eureka, CA 95501
(707) 362-0610
pbugnacki@co.humboldt.ca.us

Imperial   

Sarah Moore
Behavioral Health Manager
202 N. 8th St
El Centro, CA 92243
(442) 265-1560
sarahmoore@co.imperial.ca.us

Inyo 

Kern

Jessica Armstrong
Deputy Director
P.O. Box 1000
Bakersfield, CA 93301
(661) 868-7520
jarmstrong@kernbhrs.org

Heather Hornibrook
Deputy Director
P.O. Box 1000
Bakersfield, CA 93301
(661) 868-7520
HHornibrook@kernbhrs.org

Lesleigh Davis
Administrator
P.O. Box 1000
Bakersfield, CA 93301
(661) 868-7824
ldavis@kernbhrs.org

Kings

Grant Zweifel
Quality Assurance Manager
1400 W. Lacey Blvd Bldg 13
Hanford, CA 93230
(559) 852-4283
Grant.Zweifel@co.kings.ca.us

Christine Andrus
Deputy Director
P.O. Box 1024
Lucerne, CA 95458
(707) 274-9101
Christine.Andrus@lakecountyca.gov

Robert Chalmers
Senior Analyst
P.O. Box 1024
Lucerne CA 95458
(707) 274-9101
Robert.Chalmers@lakecountyca.gov

Lassen     

Eva Weikel
Division Manager
P.O. Box 1288
Madera, CA 93639
(559) 673-3508
Eva.weikel@maderacounty.com

Marin       

Michelle Nobori
Operations Director
20 N. San Pedro Rd San Rafael, CA 94903
(415) 473-7068
Michelle.Nobori@MarinCounty.gov

Mariposa 

Karen Lovato
Acting Deputy Director of Operations
1120 S. Dora Street
Ukiah, CA 95482
(707) 472-2342
Lovatok@mendocinocounty.gov

Merced    

Matthew Reed
QPM Division Director
P.O. Box 2087
Merced, CA 95341
(209) 381-6800 x3647
Matthew.Reed@countyofmerced.com

Adrian Angel
Compliance Manager
P.O. Box 2087
Merced, CA 95341
(209) 381-6800 x6818
Adrian.Angel@countyofmerced.com

Modoc     

Stacy Sphar
Director
441 N Main Street
Alturas, CA 96101
(530) 233-6312
stacysphar@co.modoc.ca.us

Mono      

Jimmy Lee
Quality Assurance Coordinator
P.O. Box 2619
Mammoth Lakes, CA 93546
(760) 924-1752
jlee@mono.ca.gov

Monterey 

Nicholas Cronkhite
Management Analyst III
1270 Natividad Rd
Salinas, CA 93906
(831) 796-1270
cronkhiten@countyofmonterey.gov

Napa

Kevin Powers
Assistant Compliance and Privacy Officer
2751 Napa Valley Corporate Dr Bldg A 

Napa, CA 94558
(707) 253-6192
Kevin.powers@countyofnapa.org

Nevada    

Claire Karp, LMFT
Health Services Manager, Senior
400 West Civic Center Dr Suite 400 

Santa Ana, CA 92701
(714) 834-2522
CKarp@ochca.com

Chiyo Matsubayashi, LMFT
Health Services Manager
400 West Civic Center Dr Suite 400 

Santa Ana, CA 92701
(714) 796-0537
CMatsubayashi@ochca.com

Placer      

Amy Haynes
Assistant Director Adult System of Care
101 Cirby Hills Dr
Roseville, CA 95678
(916) 787-8981
ahaynes@placer.ca.gov

Plumas     

Sharon Sousa
Director
270 County Hospital Road 109
Quincy, CA 95971
(530) 283-6307
ssousa@kingsview.org

Jessica McGill
QA Coordinator
270 County Hospital Road 109
Quincy, CA 95971
(530) 283-6307
jmcgill@kingsview.org

Riverside  

Ashley Trevino-Kwong
Administrative Services Manager
4095 County Circle Dr
Riverside, CA 92503
(951) 358-4739
ajtrevino@ruhealth.org

Sacramento      

Alexandra Rechs
Program Manager
7001-A East Parkway Suite 300 

Sacramento, CA 95823
(916) 875-0847
rechsa@saccounty.net

San Benito

Rumi Saikia LMFT
QI Supervisor
1131 Community Parkway
Hollister, CA 95023
(831) 636-4020
rsaikia@sbcmh.org

Maxe Cendana MPA
QI Supervisor
1131 Community Parkway
Hollister, CA 95023
(831) 636-4020
mcendana@sbcmh.org

San Bernardino 

Gayle Morrow
Program Manager I 
55 E. Gilbert Street
San Bernardino, CA 92404
(909) 387-7750
GMorrow@dbh.sbcounty.gov

San Diego

Tabatha Lang, LMFT
Operations Administrator
3255 Camino del Rio
South San Diego, CA 92108
(619) 957-4708
tabatha.lang@sdcounty.ca.gov

San Francisco   

San Joaquin      

Donna Bickham
Deputy Director
1212 N. California St 

Stockton CA, 95202
(209) 468-8482
dbickham@sjcbhs.org

San Luis Obispo

Amanda Getten
Quality Support Team Division Manager
2180 Johnson Ave
San Luis Obispo, CA 93401
(805) 781-4733
agetten@co.slo.ca.us

Star Graber, PhD, LMFT
Behavioral Health Director
2180 Johnson Ave
San Luis Obispo, CA 93401
(805) 781-4719
sgraber@co.slo.ca.us

San Mateo

Claudia Tinoco-Elizondo
Quality Management Supervisor
1950 Alameda de las Pulgas, Suite 157 

San Mateo, CA 94403
(650) 573-2323
CTinoco1@smcgov.org

Santa Barbara   

Jamie Huthsing
Branch Chief of Quality Care Management
315 Camino del Remedio Bldg 3
Santa Barbara, CA 93110 

(805) 450-2404
jhuthsing@sbcbwell.org

Santa Clara       

Courtney Gray
Quality Management Director
828 S. Bascom Ave Suite 200
San Jose, CA 95128
(408) 793-1846 ext. 31846
courtney.gray@hhs.sccgov.org

Santa Cruz

Rachel Ibarra
Program Manager
HD-410-MC P.O. Box 496005
Redding, CA 96049
(530) 225-5075
ribarra@co.shasta.ca.us

Adam Hilton
Clinical Program Coordinator
HD-410 2640 Breslauer Way 

Redding, CA 96001
(530) 225-5940
ahilton@co.shasta.ca.us

Sierra       

Sheryll Prinz-McMillan
Director of Behavioral Health
P.O. Box 265
Loyalton, CA 96118
(530) 993-6746
sprinzmcmillan@sierracounty.ca.gov

Siskiyou

Dee Barton
Compliance Officer
2060 Campus Dr
Yreka, CA 96097
(530) 841-4805
dbarton1@co.siskiyou.ca.us

Solano     

Sonoma   

Gabriela Marquez, LMFT 

Utilization Management Manager
1130 12th Street Ste C
Modesto CA, 95354
(209) 525-5373
gmarquez@stanbhrs.org

Monica Salazar, LMFT
Chief, Behavioral Health Plan Administration
1130 12th Street Ste C Modesto CA, 95354
(209) 525-6043
msalazar@stanbhrs.org

Sutter-Yuba       

Kristine Hughes
Q.A. Mental Health Therapist
1965 Live Oak Blvd
Yuba City, CA 95991
(530) 822-7200
khughes@co.sutter.ca.us

Tehama    

Melissa Field
CHC Compliance Officer
P.O. Box 400
Red Bluff, CA 96080
(530) 527-8491 ext. 3961
melissa.field@tchsa.net

Trinity      

Angela Sahagun
Division Manager- Administrative Services
5957 S. Mooney Blvd 

Visalia, CA 93277
(559) 624-7489
ASahagun@tularecounty.ca.gov

Tuolumne

Brock Kolby
Deputy Director
2 S. Green St Sonora, CA 95370
(209) 533-6245
bkolby@co.tuolumne.ca.us

Ventura