Walnut Creek Psychiatry – Johnston, Iowa Ketamine Clinics, Spravato Clinics

✓ Edited by Angelica Bottaro for HealingMaps Editorial Staff

Known For: A 13-provider psychiatric practice bringing IV ketamine and REMS-certified Spravato to the Des Moines metro with one of the broadest insurance panels in the market — 16 networks including Aetna, BCBS, Cigna, United Healthcare, and Medicare — under CEO and psychiatric nurse practitioner Lorraine Chidester, DNP, APRN, PMHNP-BC.

HealingMaps Take: Walnut Creek Psychiatry pairs the two ketamine-class treatments with something the Des Moines market has lacked: a full psychiatric practice behind them. Ketamine sessions are supervised by a clinical team that includes CRNAs, registered nurses, and psychiatric providers — staff certified in ketamine administration with decades of critical-care experience — and treatment plugs into ongoing medication management and therapy rather than standing alone. The 16-network insurance panel makes Spravato unusually accessible here, and the Johnston office anchors the program with a second location in Ames. For Des Moines-area patients wanting interventional depression care inside an insurance-friendly psychiatric home, this is the practice built for it.

Market Position: Walnut Creek Psychiatry holds the psychiatry-integrated, insurance-accessible slot in the Des Moines market — IV ketamine + Spravato inside a 13-provider practice, differentiated by its 16-network payer panel and full-service psychiatric care.

Walnut Creek Ketamine Cost Calculator

Ketamine Protocols Compared — What’s Offered at Walnut Creek

Industry pricing reference. Walnut Creek has not published specific per-session pricing — contact the clinic directly for a quote. The calculator above shows typical metro-level cost estimates across protocols, not this clinic’s specific prices.

What to Expect at Your First Walnut Creek Appointment

1. Initial intake call — Insurance verification, Spravato prior authorization workflow if applicable, and clinical eligibility check. Call (515) 368-7504 to schedule.
2. Medical evaluation — psychiatric assessment, vitals check, and review of current medications and prior treatment history with the Walnut Creek clinical team.
3. First treatment session — supervised ketamine session in a monitored treatment room at 5408 NW 88th Street, Suite 140, Johnston, IA 50131.
4. Recovery and follow-up — observation period after dosing, mood check-in with the clinical team, and scheduling your next session.

What to Ask on Your Walnut Creek Consult Call

• How long has the Walnut Creek clinical team been delivering ketamine therapy, and what specialty training do your providers hold?
• Walk me through your Spravato prior authorization process vs. IV ketamine cash-pay workflow — which is the better fit for my insurance situation?
• What is your specific ketamine protocol (dose, sessions, monitoring), and how do you decide when to recommend booster sessions?
• How do you handle patients who don’t respond to the standard induction series?

Johnston Ketamine Market Snapshot

Sources: CDC PLACES 2025 release (Polk County (Johnston — Des Moines metro), model-based crude prevalence among adults) · HealingMaps proprietary patient inquiry data.

• Adult depression in Polk County (Johnston — Des Moines metro): 21.6%
• Frequent mental distress (14+ days per month): 17.2%
• Adults 18–64 without health insurance: 7.5%
• Polk County (Johnston — Des Moines metro) population: 505,255 (383,731 adults 18+)
• Recent Johnston-area inquiries to HealingMaps: A growing stream of Johnston-area residents have recently contacted us seeking ketamine care

Behind this data: HealingMaps has analyzed 23,496 patient inquiries (Oct 2022 – Mar 2026), mapped 1,800 verified clinics across 3,142 counties, analyzed 132 clinic websites, and collected 658 practitioner survey responses. County health figures are CDC PLACES model-based estimates, not clinic data.

From the 2026 Ketamine Industry Report

44.9% of patients cite access as the #1 barrier to treatment — the largest single obstacle to ketamine therapy in the HealingMaps corpus, outranking cost, stigma, and side-effect concerns. Source: HealingMaps 2026 Ketamine Clinic Intelligence Report — drawn from 23,496 patient inquiries and 132 clinic website analyses.

Patient Review

“My psychiatric provider, my therapist, and the ketamine team are all under one roof, so nothing gets lost between appointments — and my Spravato ran through insurance without me fighting for it. The nurses made every session feel safe from the first minute.”

About Walnut Creek

Walnut Creek Psychiatry operates its ketamine program from 5408 NW 88th Street, Suite 140 in Johnston, Iowa (50131), in the Wesfield Center Office Park, serving the Des Moines metro; a second office at 223 S. Walnut Ave in Ames extends the practice’s psychiatric care to Story County. Hours run Monday–Friday 8:00am–5:00pm.

The practice delivers IV ketamine infusions — low-dose ketamine administered under direct medical supervision, with sessions typically running 40–60 minutes plus recovery time — and Spravato (esketamine) nasal spray, FDA-approved for treatment-resistant depression and administered in private treatment rooms under the REMS protocol. Every treatment is supervised by a clinical team that includes CRNAs, registered nurses, and psychiatric providers, with staff certified in ketamine administration through the Ketamine Academy and holding BLS/ACLS certification with more than 25 years of critical-care experience.

Founded and led by Lorraine Chidester, DNP, APRN, PMHNP-BC, the 13-provider team wraps ketamine treatment in full psychiatric care — evaluation, medication management, therapy and group therapy, GeneSight genetic testing, and nutritional psychiatry. The practice is in-network with 16 insurance plans, including Aetna, BCBS, Carelon, Cigna, Evernorth, Medicare, Optum, and United Healthcare; conditions treated include major depressive disorder and treatment-resistant depression, anxiety disorders, PTSD, and OCD.

To schedule, call (515) 368-7504 or visit walnutcreekpsych.com.

Patient Questions about Walnut Creek

This 5-question summary is matched to the protocols and conditions Walnut Creek treats. Editorial responses are HealingMaps-authored.

What ketamine protocols does Walnut Creek offer?

Walnut Creek offers IV Ketamine Infusion + Spravato (Esketamine, REMS-certified) + Full Psychiatric Care & Therapy. Confirm specific dosing schedules during your consult.

Does Walnut Creek offer Spravato (esketamine)?

Yes — Walnut Creek offers Spravato, which means they’re FDA REMS-certified and maintain the required two-hour in-office monitoring window after each dose.

Does Walnut Creek offer ketamine-assisted psychotherapy (KAP)?

Walnut Creek operates a medical-model program. Patients seeking explicit KAP with a licensed integration therapist should evaluate practices that pair the dosing experience with structured therapy.

Is Walnut Creek suited for treatment-resistant depression?

Walnut Creek treats treatment-resistant depression. TRD is typically defined as two or more prior antidepressant trials without sufficient response — patients meeting that bar are best candidates.

Can Walnut Creek help with anxiety disorders?

Yes — Walnut Creek treats anxiety disorders. The evidence base for ketamine in anxiety is less robust than for depression, but it can be a meaningful option for patients who haven’t responded to SSRIs or benzodiazepines.

View all REMS-certified Spravato clinics in Iowa and across the United States.

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