Alignment Health Harmony (HMO) · 2026

Plan type: HMO
Providers listed: 18,822

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.

18,822 listings. Repeated names and offices are kept as printed. 12,045 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.


Blacher, Sarah Lily, MD	Primary care	747 52Nd St Ste Street, Oakland, CA 94609ALAMEDA area	1184269490	1 office entry and medical groups 747 52Nd St Ste Street, Oakland, CA 94609(510) 428-3372Medical group: Brown & Toland Health Services Inc · Carrier ID: 300000430619 Call this office to confirm it takes the plan, and which medical group it is in.
Black, Benjamin Robert, LCSW	Mental / behavioral health	1390 Market St, San Francisco, CA 94102SAN FRANCISCO area	1710478060	1 office entry and medical groups 1390 Market St, San Francisco, CA 94102(415) 301-7635Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000070317 Call this office to confirm it takes the plan, and which medical group it is in.
Blackburn, Brian Guy, MD	Specialist	300 Pasteur Dr, Stanford, CA 94305SANTA CLARA area	1861542680	1 office entry and medical groups 300 Pasteur Dr, Stanford, CA 94305(650) 723-4000Medical group: Brown & Toland Physicians Call this office to confirm it takes the plan, and which medical group it is in.
Blackburn, Brian Guy, MD	Specialist	211 Quarry Rd, Palo Alto, CA 94304SANTA CLARA area	None	1 office entry and medical groups 211 Quarry Rd, Palo Alto, CA 94304(650) 736-5200Medical group: Brown & Toland Physicians Call this office to confirm it takes the plan, and which medical group it is in.
Black, Cassandra L, LCSW	Mental / behavioral health	1101 Marina Village Pkwy, Alameda, CA 94501ALAMEDA area	None	1 office entry and medical groups 1101 Marina Village Pkwy, Alameda, CA 94501(323) 690-1870Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000070279 Call this office to confirm it takes the plan, and which medical group it is in.
Black, Cassandra L, 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: 300000070279 Call this office to confirm it takes the plan, and which medical group it is in.
Black, Danell Tenyenhuis, LCSW	Mental / behavioral health	99 Almaden Blvd STE 600, San Jose, CA 95113SANTA CLARA area	None	1 office entry and medical groups 99 Almaden Blvd STE 600, San Jose, CA 95113(786) 244-3620Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000081878 Call this office to confirm it takes the plan, and which medical group it is in.
Blackett, Ashley Alison, LCSW	Mental / behavioral health	888 Paris St, San Francisco, CA 94112SAN FRANCISCO area	None	4 office entries and medical groups 888 Paris St, San Francisco, CA 94112(646) 941-7645Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000079410 82 Leland Ave, San Francisco, CA 94134(646) 941-7645Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000079410 3450 3rd St, San Francisco, CA 94124(646) 941-7645Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000079410 300 Montgomery St STE 204, San Francisco, CA 94104(646) 941-7645Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000079410 Call this office to confirm it takes the plan, and which medical group it is in.
Black, Trenye	Mental / behavioral health	99 Almaden Blvd STE 600, San Jose, CA 95113SANTA CLARA area	None	1 office entry and medical groups 99 Almaden Blvd STE 600, San Jose, CA 95113(786) 244-3620Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000068348 Call this office to confirm it takes the plan, and which medical group it is in.
Blaisdell, Adam, MD	Specialist	513 Parnassus Ave Ste S357, San Francisco, CA 94143SAN FRANCISCO area	1013448471	1 office entry and medical groups 513 Parnassus Ave Ste S357, San Francisco, CA 94143(415) 502-4444Medical group: Brown & Toland Health Services Inc Call this office to confirm it takes the plan, and which medical group it is in.
Blake, Kelly, LCSW	Mental / behavioral health	490 Post St STE 1043, San Francisco, CA 94102SAN FRANCISCO area	None	1 office entry and medical groups 490 Post St STE 1043, San Francisco, CA 94102(888) 450-0937Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000068688 Call this office to confirm it takes the plan, and which medical group it is in.
Blakesley, Rebecca, NP	Mental / behavioral health	1860 El Camino Real STE 250, Burlingame, CA 94010SAN MATEO area	1134899388	1 office entry and medical groups 1860 El Camino Real STE 250, Burlingame, CA 94010(844) 995-1640Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000065019 Call this office to confirm it takes the plan, and which medical group it is in.
Blakesley, Rebecca, NP	Mental / behavioral health	350 Parnassus Ave STE 201, San Francisco, CA 94117SAN FRANCISCO area	1134899388	1 office entry and medical groups 350 Parnassus Ave STE 201, San Francisco, CA 94117(844) 995-1640Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000065019 Call this office to confirm it takes the plan, and which medical group it is in.
Blakesley, Rebecca, NP	Mental / behavioral health	3300 Webster St STE 402, Oakland, CA 94609ALAMEDA area	1134899388	1 office entry and medical groups 3300 Webster St STE 402, Oakland, CA 94609(844) 867-8444Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000065019 Call this office to confirm it takes the plan, and which medical group it is in.
Blanco, Marlene Brigitte, 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: 300000080312 Call this office to confirm it takes the plan, and which medical group it is in.
Blanco, Marlene Brigitte, LCSW	Mental / behavioral health	1900 Camden Ave STE 101, San Jose, CA 95124SANTA CLARA area	None	2 office entries and medical groups 1900 Camden Ave STE 101, San Jose, CA 95124(323) 690-1870Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000080312 123 E San Carlos St, San Jose, CA 95112(323) 690-1870Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000080312 Call this office to confirm it takes the plan, and which medical group it is in.
Blandford, Monica, LCSW	Mental / behavioral health	3190 College Ave, Berkeley, CA 94705ALAMEDA area	None	1 office entry and medical groups 3190 College Ave, Berkeley, CA 94705(323) 690-1870Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000079817 Call this office to confirm it takes the plan, and which medical group it is in.
Blandford, Monica, LCSW	Mental / behavioral health	7080 Donlon Way, Dublin, CA 94568ALAMEDA area	None	1 office entry and medical groups 7080 Donlon Way, Dublin, CA 94568(323) 690-1870Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000079817 Call this office to confirm it takes the plan, and which medical group it is in.
Blankenberg, Francis G, MD	Specialist	5555 W Las Positas Blvd, Pleasanton, CA 94588ALAMEDA area	1578653317	1 office entry and medical groups 5555 W Las Positas Blvd, Pleasanton, CA 94588(650) 723-6855Medical group: Brown & Toland Health Services Inc Call this office to confirm it takes the plan, and which medical group it is in.
Blankenberg, Francis G, MD	Specialist	500 Pasteur Dr, Palo Alto, CA 94304SANTA CLARA area	1578653317	1 office entry and medical groups 500 Pasteur Dr, Palo Alto, CA 94304(650) 723-6855Medical group: Brown & Toland Physicians Call this office to confirm it takes the plan, and which medical group it is in.
Blankenberg, Francis G, MD	Specialist	300 Pasteur Dr, Stanford, CA 94305SANTA CLARA area	1578653317	1 office entry and medical groups 300 Pasteur Dr, Stanford, CA 94305(650) 723-6855Medical group: Brown & Toland Physicians Call this office to confirm it takes the plan, and which medical group it is in.
Blauvelt, Christine, MD	Specialist	1855 4th St, San Francisco, CA 94143SAN FRANCISCO area	1063916013	1 office entry and medical groups 1855 4th St, San Francisco, CA 94143(415) 353-2566Medical group: Brown & Toland Health Services Inc Call this office to confirm it takes the plan, and which medical group it is in.
Blea, Louis, LCSW	Mental / behavioral health	2261 Market St Pmb 10222, San Francisco, CA 94114SAN FRANCISCO area	None	1 office entry and medical groups 2261 Market St Pmb 10222, San Francisco, CA 94114(415) 360-3348Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000449333 Call this office to confirm it takes the plan, and which medical group it is in.
Blebea, Catherine, MD	Specialist	400 Parnassus Ave # 6, San Francisco, CA 94143SAN FRANCISCO area	1134680531	1 office entry and medical groups 400 Parnassus Ave # 6, San Francisco, CA 94143(415) 353-2961Medical group: Brown & Toland Health Services Inc Call this office to confirm it takes the plan, and which medical group it is in.
Blecher, Nathaniel Aidan, MD	Specialist	1133 E Stanley Blvd STE 209, Livermore, CA 94550ALAMEDA area	1487215380	1 office entry and medical groups 1133 E Stanley Blvd STE 209, Livermore, CA 94550(650) 723-6995Medical group: Brown & Toland Health Services Inc Call this office to confirm it takes the plan, and which medical group it is in.