California evidence atlas · July 2024 snapshot

Where California psychiatry access thins out.

This county view compares listed psychiatrist headcount, population, and Medi-Cal enrollment from dated sources. It is a directional planning aid—not a current provider directory, network-adequacy determination, causal analysis, or forecast of appointment access.

Study 01 / 58 counties / historical snapshot

County evidence ledger

Sources: NPI Registry, CHCF, DHCS, and California Department of Finance. July 2024 source data; extraction and limitations are detailed below.

Psychiatrists listed in source

6,504

historical count across 58 counties

Medi-Cal enrolled · source snapshot

14.9M

38.0% of population

Counties with zero listed psychiatrists

Alpine, Colusa, Modoc, Sierra, Trinity

Calculated Medi-Cal per listed psychiatrist

2,288

avg enrollees per provider

< 20%28%35%42%50%58%+

Click a county on the map to view details

All counties — sortable data

County ▲	Population ▲	Psychiatrists ▲	Per 100k ▲	Medi-Cal enrolled ▲	Medi-Cal % ▼	MC per psychiatrist ▲	Phase ▲
Tulare	476,356	23	4.8	300,659	63.1%	13,072	2
Imperial	181,060	8	4.4	100,782	55.7%	12,598	2
Kern	904,430	47	5.2	488,311	54%	10,390	2
Fresno	1,014,946	88	8.7	546,102	53.8%	6,206	2
Lake	65,908	3	4.6	35,417	53.7%	11,806	2
Merced	286,149	14	4.9	153,747	53.7%	10,982	2
Madera	159,786	6	3.8	83,961	52.5%	13,994	2
Glenn	27,739	1	3.6	13,826	49.8%	13,826	2
Del Norte	26,021	2	7.7	12,735	48.9%	6,368	2
Mendocino	88,991	8	9	43,376	48.7%	5,422	2
Tehama	64,440	2	3.1	31,380	48.7%	15,690	2
Colusa	21,939	0	0	10,667	48.6%	—	2
Stanislaus	544,160	27	5	260,447	47.9%	9,646	2
Sutter	98,330	7	7.1	46,399	47.2%	6,628	2
Yuba	84,086	3	3.6	38,921	46.3%	12,974	2
Monterey	438,851	42	9.6	199,353	45.4%	4,747	2
San Bernardino	2,180,503	120	5.5	987,371	45.3%	8,228	2
Humboldt	134,408	16	11.9	60,695	45.2%	3,793	1
Modoc	8,412	0	0	3,789	45%	—	2
Siskiyou	42,665	3	7	19,139	44.9%	6,380	2
Kings	153,709	5	3.3	68,004	44.2%	13,601	2
Butte	205,517	21	10.2	86,866	42.3%	4,136	1
Riverside	2,441,474	145	5.9	1,027,163	42.1%	7,084	2
Los Angeles	9,784,023	2450	25	4,108,441	42%	1,677	1
Sacramento	1,588,656	270	17	653,288	41.1%	2,420	1
San Joaquin	787,365	38	4.8	323,476	41.1%	8,513	2
Santa Barbara	446,729	58	13	179,873	40.3%	3,101	1
Shasta	178,300	14	7.9	70,131	39.3%	5,009	2
Trinity	15,823	0	0	5,896	37.3%	—	2
Mariposa	16,780	1	6	6,066	36.2%	6,066	2
Lassen	27,483	1	3.6	9,247	33.6%	9,247	3
San Benito	65,022	2	3.1	21,597	33.2%	10,799	3
Solano	446,932	31	6.9	148,129	33.1%	4,778	3
Ventura	825,322	95	11.5	269,163	32.6%	2,833	3
Plumas	18,709	1	5.3	6,056	32.4%	6,056	3
Orange	3,142,387	550	17.5	1,015,634	32.3%	1,847	3
San Diego	3,310,718	620	18.7	1,051,288	31.8%	1,696	3
Calaveras	44,483	1	2.2	14,088	31.7%	14,088	3
Santa Cruz	261,708	32	12.2	83,078	31.7%	2,596	3
Alameda	1,654,334	289	17.5	502,349	30.4%	1,738	1
San Francisco	850,147	450	52.9	254,723	30%	566	1
Sonoma	478,459	68	14.2	143,432	30%	2,109	3
Inyo	18,656	1	5.4	5,579	29.9%	5,579	3
Nevada	99,875	12	12	29,757	29.8%	2,480	3
Contra Costa	1,143,037	192	16.8	334,637	29.3%	1,743	1
Tuolumne	53,458	4	7.5	15,556	29.1%	3,889	3
Yolo	220,325	18	8.2	62,145	28.2%	3,453	3
Alpine	1,163	0	0	323	27.8%	—	3
Napa	133,989	22	16.4	36,365	27.1%	1,653	3
Sierra	3,133	0	0	818	26.1%	—	3
Mono	13,215	1	7.6	3,423	25.9%	3,423	3
San Luis Obispo	280,437	30	10.7	69,066	24.6%	2,302	3
Santa Clara	1,917,472	360	18.8	471,282	24.6%	1,309	1
Amador	40,198	3	7.5	9,421	23.4%	3,140	3
San Mateo	747,719	155	20.7	171,322	22.9%	1,105	1
El Dorado	186,622	16	8.6	42,454	22.7%	2,653	3
Marin	254,283	93	36.6	56,337	22.2%	606	3
Placer	412,892	35	8.5	81,836	19.8%	2,338	3

Interpretation / limits first

A planning question—not a causal answer.

The July 2024 snapshot shows uneven listed headcount alongside uneven Medi-Cal enrollment. It cannot show which clinicians accept Medi-Cal, have appointments available, participate in a specific network, or what caused any observed pattern.

Clinician-led model

TalkDoc supports psychiatrists who practice through independently owned Professional Corporations (P.C.s). Administrative services are intended to reduce friction; they do not guarantee capacity or outcomes.

Clinical coaching

Active mentorship and peer-to-peer coaching can support learning and review. Any effect on care quality or outcomes requires defined measures and evidence.

Medicaid operations

TalkDoc's operational focus includes credentialing, billing, and compliance support. Scope, timing, economics, and plan requirements vary by relationship.

Potential value / bounded language

What the model is designed to support.

For clinicians

Clinical independence: Licensed clinicians retain professional judgment within legal, ethical, and contractual duties.
Clinical support: Access to peers and coaching intended to support reflection and practice.
Medicaid focus: An opportunity to serve Medicaid populations; volume, economics, and results are not guaranteed.

For Health Plans

Network planning: Historical county patterns can inform diligence, but do not establish current adequacy or appointment availability.
Outcome accountability: Define measures, denominators, and review methods; no clinical result is promised by this model or dataset.
Coordinated relationship: One operational interface while plan, professional-entity, and clinician responsibilities remain distinct.

Roadmap / conditional

Validate each move before calling it a blueprint.

This historical snapshot is one input to planning. Market decisions require current provider participation, appointment capacity, member need, contracting, operations, and measured implementation evidence.

Study group 1: evaluate

Compare selected urban markets against current supply, demand, contracts, and actual appointment capacity.

Study group 2: test

Assess operational fit in selected higher-enrollment, lower-listed-density counties only after current validation.

Later: assess separately

Consider other states only if measured California implementation holds and each market receives its own diligence.

Data sources: Psychiatrist counts from NPI Registry (NPPES) and CHCF Mental Health Almanac (Medical Board of CA, 2020–2024). Medi-Cal enrollment from DHCS Certified Eligible Counts by County, July 2024 (extracted Nov 2024, preliminary). Population from CA Dept. of Finance projections 2024. Raw county counts and enrollment figures are reproduced from those source snapshots; rates, ratios, and study groups are TalkDoc calculations or segmentation. This is a directional planning aid, not a current provider directory, causal analysis, network-adequacy determination, forecast, or assurance of access or outcomes.