Alignment Health the ONE (HMO) · 2026

Plan type: HMO
Providers listed: 10,181

Providers listed by this plan

Information as of Oct 3, 2026. Directories change; call the doctor’s office to confirm before you choose. A missing listing does not mean out of network.

10,181 listings. Repeated names and offices are kept as printed. 5,467 are linked to a clinician’s profile. A listing does not guarantee appointments or coverage for a particular service.

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About these listings

These are original name and office occurrences in the carrier's plan-specific directory, not a count of unique clinicians. Names have not been linked to NPI identities. County sections are the carrier's groupings and do not establish physical county boundaries. Check medical-group, referral and office requirements with the plan. A listing does not establish current appointments, coverage for a service, or access through every medical group. A missing listing does not mean out of network.


Bais Ii, William Allen, LCSW	Mental / behavioral health	795 Fletcher Ln, Hayward, CA 94544ALAMEDA area	1467880435	1 office entry and medical groups 795 Fletcher Ln, Hayward, CA 94544(510) 247-8300Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000449085 Call this office to confirm it takes the plan, and which medical group it is in.
Bajestan, Sepideh Naghibzadeh	Specialist	401 Quarry Rd, Palo Alto, CA 94304SANTA CLARA area	1558681379	1 office entry and medical groups 401 Quarry Rd, Palo Alto, CA 94304(650) 498-9111Medical group: Brown & Toland Physicians Call this office to confirm it takes the plan, and which medical group it is in.
Baker, Erin, LCSW	Mental / behavioral health	5201 Great America Pkwy STE 320, Santa Clara, CA 95054SANTA CLARA area	None	1 office entry and medical groups 5201 Great America Pkwy STE 320, Santa Clara, CA 95054(646) 941-7645Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000445071 Call this office to confirm it takes the plan, and which medical group it is in.
Baker, Jennifer Monet, LCSW	Mental / behavioral health	5201 Great America Pkwy STE 320, Santa Clara, CA 95054SANTA CLARA area	None	1 office entry and medical groups 5201 Great America Pkwy STE 320, Santa Clara, CA 95054(323) 690-1870Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000063504 Call this office to confirm it takes the plan, and which medical group it is in.
Baker, Justin Nathaniel, MD	Specialist	725 Welch Rd 350, Palo Alto, CA 94304SANTA CLARA area	1750592580	1 office entry and medical groups 725 Welch Rd 350, Palo Alto, CA 94304(650) 497-8000Medical group: Brown & Toland Physicians Call this office to confirm it takes the plan, and which medical group it is in.
Baker, Matthew Charles, MD	Specialist	900 Blake Wilbur Dr, Palo Alto, CA 94304SANTA CLARA area	1518252204	1 office entry and medical groups 900 Blake Wilbur Dr, Palo Alto, CA 94304(650) 723-6961Medical group: Brown & Toland Physicians Call this office to confirm it takes the plan, and which medical group it is in.
Baker, Natalie Michelle, LCSW	Mental / behavioral health	2855 Telegraph Ave STE 204, Berkeley, CA 94705ALAMEDA area	None	1 office entry and medical groups 2855 Telegraph Ave STE 204, Berkeley, CA 94705(646) 941-7645Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000446608 Call this office to confirm it takes the plan, and which medical group it is in.
Balaban, Celeste, LCSW	Mental / behavioral health	4850 Union Ave, San Jose, CA 95124SANTA CLARA area	1700497625	1 office entry and medical groups 4850 Union Ave, San Jose, CA 95124(800) 913-2615Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000448322 Call this office to confirm it takes the plan, and which medical group it is in.
Balaban, Celeste, LCSW	Mental / behavioral health	2542 S Bascom Ave Ste 100, Campbell, CA 95008SANTA CLARA area	1700497625	1 office entry and medical groups 2542 S Bascom Ave Ste 100, Campbell, CA 95008(800) 913-2615Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000448322 Call this office to confirm it takes the plan, and which medical group it is in.
Balakhane, Hilda, LCSW	Mental / behavioral health	5201 Great America Pkwy STE 320, Santa Clara, CA 95054SANTA CLARA area	1548579402	1 office entry and medical groups 5201 Great America Pkwy STE 320, Santa Clara, CA 95054(323) 690-1870Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000063590 Call this office to confirm it takes the plan, and which medical group it is in.
Balaram, Kripa, MD	Mental / behavioral health	1100 Park Pl, San Mateo, CA 94403SAN MATEO area	None	1 office entry and medical groups 1100 Park Pl, San Mateo, CA 94403(415) 502-8950Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000079921 Call this office to confirm it takes the plan, and which medical group it is in.
Balarezo- Ruvalcaba, Jackeline, LCSW	Mental / behavioral health	66 Franklin St, Oakland, CA 94607ALAMEDA area	1194858860	1 office entry and medical groups 66 Franklin St, Oakland, CA 94607(323) 690-1870Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000067188 Call this office to confirm it takes the plan, and which medical group it is in.
Balarezo- Ruvalcaba, Jackeline, LCSW	Mental / behavioral health	5201 Great America Pkwy STE 320, Santa Clara, CA 95054SANTA CLARA area	1194858860	1 office entry and medical groups 5201 Great America Pkwy STE 320, Santa Clara, CA 95054(323) 690-1870Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000067188 Call this office to confirm it takes the plan, and which medical group it is in.
Balassiano, Erika, MD	Specialist	2495 Hospital Dr STE 670, Mountain View, CA 94040SANTA CLARA area	1558599928	1 office entry and medical groups 2495 Hospital Dr STE 670, Mountain View, CA 94040(650) 396-8110Medical group: Optum Care Network-Greater Bay Area Call this office to confirm it takes the plan, and which medical group it is in.
Balasubramanian, Sangeetha, MD	Specialist	50 E Hamilton Ave STE 200, Campbell, CA 95008SANTA CLARA area	1265640874	1 office entry and medical groups 50 E Hamilton Ave STE 200, Campbell, CA 95008(408) 866-1135Medical group: Brown & Toland Physicians Call this office to confirm it takes the plan, and which medical group it is in.
Baldor, Denine A., NP	Mental / behavioral health	3300 Webster St STE 804, Oakland, CA 94609ALAMEDA area	1982910485	1 office entry and medical groups 3300 Webster St STE 804, Oakland, CA 94609(855) 501-1004Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000068841 Call this office to confirm it takes the plan, and which medical group it is in.
Baldor, Denine A., NP	Mental / behavioral health	3000 Colby St STE 202, Berkeley, CA 94705ALAMEDA area	1982910485	1 office entry and medical groups 3000 Colby St STE 202, Berkeley, CA 94705(855) 501-1004Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000068841 Call this office to confirm it takes the plan, and which medical group it is in.
Baldwin, Emily, MD	Mental / behavioral health	2020 Milvia St STE 300, Berkeley, CA 94704ALAMEDA area	1942408638	2 office entries and medical groups 2020 Milvia St STE 300, Berkeley, CA 94704(510) 843-2220Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000066204 2001 Dwight Way FL 4, Berkeley, CA 94704(510) 204-4635Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000066204 Call this office to confirm it takes the plan, and which medical group it is in.
Ballardo, Theresa Sciurba, PSYD	Mental / behavioral health	2542 S Bascom Ave Ste 100, Campbell, CA 95008SANTA CLARA area	None	1 office entry and medical groups 2542 S Bascom Ave Ste 100, Campbell, CA 95008(800) 913-2615Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000447549 Call this office to confirm it takes the plan, and which medical group it is in.
Ballardo, Theresa Sciurba, PSYD	Mental / behavioral health	4850 Union Ave, San Jose, CA 95124SANTA CLARA area	None	1 office entry and medical groups 4850 Union Ave, San Jose, CA 95124(800) 913-2615Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000447549 Call this office to confirm it takes the plan, and which medical group it is in.
Ball, Katharine, MD	Specialist	2420 Samaritan Dr, San Jose, CA 95124SANTA CLARA area	1801004650	1 office entry and medical groups 2420 Samaritan Dr, San Jose, CA 95124(408) 369-5600Medical group: Brown & Toland Physicians Call this office to confirm it takes the plan, and which medical group it is in.
Ball, Katharine, MD	Specialist	18988 Cox Ave STE B, Saratoga, CA 95070SANTA CLARA area	1801004650	1 office entry and medical groups 18988 Cox Ave STE B, Saratoga, CA 95070(408) 253-4407Medical group: Brown & Toland Physicians Call this office to confirm it takes the plan, and which medical group it is in.
Ball, Olivia Jane, NP	Mental / behavioral health	5201 Great America Pkwy STE 320, Santa Clara, CA 95054SANTA CLARA area	None	1 office entry and medical groups 5201 Great America Pkwy STE 320, Santa Clara, CA 95054(888) 684-2779Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000446882 Call this office to confirm it takes the plan, and which medical group it is in.
Ball, Robert H, MD	Specialist	770 Welch Rd, Palo Alto, CA 94304SANTA CLARA area	None	1 office entry and medical groups 770 Welch Rd, Palo Alto, CA 94304(650) 498-4069Medical group: Brown & Toland Physicians Call this office to confirm it takes the plan, and which medical group it is in.
Balu, Maragadham, MD	Primary care	900 Miramonte Ave, Mountain View, CA 94040SANTA CLARA area	1922034339	1 office entry and medical groups 900 Miramonte Ave, Mountain View, CA 94040(650) 965-3323Medical group: Optum Care Network-Greater Bay Area · Carrier ID: 300000248091 Call this office to confirm it takes the plan, and which medical group it is in.