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.


Chen, Doris Pao-Chin, MD	Primary care	960 N San Antonio Rd, Los Altos, CA 94022SANTA CLARA area	1013273283	2 office entries and medical groups 960 N San Antonio Rd, Los Altos, CA 94022(650) 723-6316Medical group: Brown & Toland Physicians · Carrier ID: 300000423389 960 N San Antonio Rd, Los Altos, CA 94022(650) 498-9000Medical group: Brown & Toland Physicians · Carrier ID: 300000423389 Call this office to confirm it takes the plan, and which medical group it is in.
Chen, Eli, MD	Specialist	333 Oconnor Dr, San Jose, CA 95128SANTA CLARA area	1912220138	2 office entries and medical groups 333 Oconnor Dr, San Jose, CA 95128(408) 297-3484Medical group: Optum Care Network-Greater Bay Area 2430 Samaritan Dr, San Jose, CA 95124(408) 782-4060Medical group: Santa Clara County IPA Call this office to confirm it takes the plan, and which medical group it is in.
Chen, Eli, MD	Specialist	18550 De Paul Dr STE 203, Morgan Hill, CA 95037SANTA CLARA area	1912220138	1 office entry and medical groups 18550 De Paul Dr STE 203, Morgan Hill, CA 95037(408) 782-4060Medical group: Optum Care Network-Greater Bay Area Call this office to confirm it takes the plan, and which medical group it is in.
Chenette, Christie I, NP	Mental / behavioral health	3300 Webster St Ste 612, Oakland, CA 94609ALAMEDA area	1548802051	1 office entry and medical groups 3300 Webster St Ste 612, Oakland, CA 94609(855) 501-1004Medical group: Optum Behavioral Health Solutions · Carrier ID: 300000447859 Call this office to confirm it takes the plan, and which medical group it is in.
Chen, Eunice Shin, MD	Primary care	3301 El Camino Real STE 100, Atherton, CA 94027SAN MATEO area	1154332047	2 office entries and medical groups 3301 El Camino Real STE 100, Atherton, CA 94027(650) 736-5370Medical group: Brown & Toland Health Services Inc · Carrier ID: 300000438902 3301 El Camino Real 100, Atherton, CA 94027(650) 736-5370Medical group: Brown & Toland Health Services Inc · Carrier ID: 300000438902 Call this office to confirm it takes the plan, and which medical group it is in.
Chen, Evan Matthew, MD	Specialist	2452 Watson Ct, Palo Alto, CA 94303SANTA CLARA area	1821675091	2 office entries and medical groups 2452 Watson Ct, Palo Alto, CA 94303(650) 723-6995Medical group: Brown & Toland Physicians 2452 Watson Ct Ste 1700, Palo Alto, CA 94303(650) 723-6995Medical group: Brown & Toland Physicians Call this office to confirm it takes the plan, and which medical group it is in.
Chen, Frank, MD	Specialist	795 El Camino Real, Palo Alto, CA 94301SANTA CLARA area	None	1 office entry and medical groups 795 El Camino Real, Palo Alto, CA 94301(650) 853-2992Medical group: Brown & Toland Physicians Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Cathy Ivory, MD	Specialist	450 Broadway St, Redwood City, CA 94063SAN MATEO area	1427347673	1 office entry and medical groups 450 Broadway St, Redwood City, CA 94063(650) 723-6601Medical group: Brown & Toland Health Services Inc Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Christi C, MD	Primary care	13847 E 14th St STE 108, San Leandro, CA 94578ALAMEDA area	1982674685	2 office entries and medical groups 13847 E 14th St STE 108, San Leandro, CA 94578(510) 912-0105Medical group: Brown & Toland Health Services Inc · Carrier ID: 300000121480 13847 E 14th St 108, San Leandro, CA 94578(510) 912-0105Medical group: Brown & Toland Health Services Inc · Carrier ID: 300000121480 Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Ernest Yadao, DO	Specialist	2320 Woolsey St STE 201, Berkeley, CA 94705ALAMEDA area	1457558595	1 office entry and medical groups 2320 Woolsey St STE 201, Berkeley, CA 94705(510) 549-2038Medical group: Brown & Toland Health Services Inc Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Evaline, MD	Specialist	300 Pasteur Dr, Stanford, CA 94305SANTA CLARA area	1245799022	1 office entry and medical groups 300 Pasteur Dr, Stanford, CA 94305(650) 736-7102Medical group: Brown & Toland Physicians Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Evaline, MD	Specialist	500 Pasteur Dr, Palo Alto, CA 94304SANTA CLARA area	1245799022	1 office entry and medical groups 500 Pasteur Dr, Palo Alto, CA 94304(650) 497-8263Medical group: Brown & Toland Physicians Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Filip Fey, DO	Specialist	1335 Stanford Ave, Emeryville, CA 94608ALAMEDA area	1952765539	1 office entry and medical groups 1335 Stanford Ave, Emeryville, CA 94608(510) 647-5101Medical group: Brown & Toland Health Services Inc Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Filip Fey, DO	Specialist	20100 Lake Chabot Rd STE 2, Castro Valley, CA 94546ALAMEDA area	1952765539	1 office entry and medical groups 20100 Lake Chabot Rd STE 2, Castro Valley, CA 94546(510) 647-5101Medical group: Brown & Toland Health Services Inc Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Filip Fey, DO	Specialist	1640 W Yosemite Ave STE 2, Manteca, CA 95337ALAMEDA area	1952765539	1 office entry and medical groups 1640 W Yosemite Ave STE 2, Manteca, CA 95337(510) 647-5101Medical group: Brown & Toland Health Services Inc Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Geoffrey Carson, MD	Specialist	1825 4th St FL 6, San Francisco, CA 94143SAN FRANCISCO area	None	1 office entry and medical groups 1825 4th St FL 6, San Francisco, CA 94143(313) 782-2738Medical group: Brown & Toland Health Services Inc Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Huilan, MD	Specialist	2510 Webster St, Berkeley, CA 94705ALAMEDA area	1679684245	1 office entry and medical groups 2510 Webster St, Berkeley, CA 94705(510) 548-6555Medical group: Brown & Toland Health Services Inc Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Huilan, MD	Specialist	2363 Mariner Square Dr STE 155, Alameda, CA 94501ALAMEDA area	1679684245	1 office entry and medical groups 2363 Mariner Square Dr STE 155, Alameda, CA 94501(510) 548-6555Medical group: Brown & Toland Health Services Inc Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Jeffrey, MD	Specialist	1701 Divisadero St FL 3, San Francisco, CA 94115SAN FRANCISCO area	1699933069	1 office entry and medical groups 1701 Divisadero St FL 3, San Francisco, CA 94115(415) 353-7800Medical group: Brown & Toland Health Services Inc Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Joseph C, MD	Specialist	15035 E 14th St, San Leandro, CA 94578ALAMEDA area	1871696997	1 office entry and medical groups 15035 E 14th St, San Leandro, CA 94578(510) 481-3400Medical group: Brown & Toland Health Services Inc Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Laurence, MD	Specialist	1825 4th St FL 6, San Francisco, CA 94143SAN FRANCISCO area	1164636593	1 office entry and medical groups 1825 4th St FL 6, San Francisco, CA 94143(415) 353-2813Medical group: Brown & Toland Health Services Inc Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Michael L, MD	Specialist	1825 4Th St # 6, San Francisco, CA 94143SAN FRANCISCO area	1306105309	1 office entry and medical groups 1825 4Th St # 6, San Francisco, CA 94143(415) 885-3882Medical group: Brown & Toland Health Services Inc Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Michelle Yaolin, MD	Specialist	2400 Samaritan Dr STE 105, San Jose, CA 95124SANTA CLARA area	1467871590	1 office entry and medical groups 2400 Samaritan Dr STE 105, San Jose, CA 95124(650) 934-7676Medical group: Brown & Toland Physicians Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Michelle Yaolin, MD	Specialist	401 Old San Francisco Rd, Sunnyvale, CA 94086SANTA CLARA area	1467871590	1 office entry and medical groups 401 Old San Francisco Rd, Sunnyvale, CA 94086(650) 934-7111Medical group: Brown & Toland Physicians Call this office to confirm it takes the plan, and which medical group it is in.
Cheng, Mike Kai Wick, MD	Primary care	1 2Nd St, San Francisco, CA 94105SAN FRANCISCO area	1144679846	1 office entry and medical groups 1 2Nd St, San Francisco, CA 94105(415) 353-7900Medical group: Brown & Toland Health Services Inc · Carrier ID: 300000440143 Call this office to confirm it takes the plan, and which medical group it is in.