Price Checker / CPT 90791
How much does Psych Diagnostic Evaluation cost?
CPT 90791 · Based on 2026 Medicare rates and hospital-published pricing
The average hospital charge is a bit above the fair range. It may be worth asking for the cash/self-pay rate.
Fair price
$370–$430
What this should cost
With insurance
~$760
Typical out-of-pocket
Overcharged if over
$540
Push back above this
The average hospital charge of $534 is $134 over the fair price.
What hospitals charge for Psych Diagnostic Evaluation
From hospital-published transparency (MRF) files. These are the hospitals in our database that list this procedure.
| Hospital | Gross Charge | Cash Rate | vs Medicare |
|---|---|---|---|
| Columbus Springs Dublin , OH | $2,921 | — | 1585% |
| UM Rehabilitation & Orthopaedic Institute Baltimore, MD | $1,645 | — | 849% |
| Haven Behavioral Hospital of Philadelphia PHILADELPHIA, PA | $450 | — | 708% |
| Rainier Springs VANCOUVER, WA | $300 | — | 687% |
| Denver Springs Changes ENGLEWOOD, CO | $300 | — | 592% |
| Denver Springs ENGLEWOOD, CO | $300 | — | 592% |
| Copper Springs , AZ | $300 | — | 584% |
| UPMC Western Psychiatric , PA | $1,119 | $895 | 546% |
| UM Shore Medical Center at Cambridge , MD | $857 | — | 394% |
| Saint Barnabas Behavioral Health Center TOMS RIVER, NJ | $689 | — | 297% |
| Gateways Hospital and Mental Health Center Los Angeles, CA | $532 | — | 207% |
| Pennsylvania Psychiatric Institute Harrisburg, PA | $603 | — | 178% |
| Haven Behavioral Hospital of Eastern Pennsylvania READING, PA | $426 | — | 146% |
| NATCHAUG HOSPITAL MANSFIELD CENTER, CT | $304 | — | 133% |
| Lindner Center of Hope MASON, OH | $330 | — | 89% |
Were you billed for this procedure?
Send us your bill and we'll compare every line item against Medicare rates and your hospital's published prices. Free review, no obligation.
About Psych Diagnostic Evaluation
CPT code 90791 refers to psych diagnostic evaluation (billing description: "Psych diagnostic evaluation"). Under the 2026 Medicare Physician Fee Schedule, it is reimbursed at $137 in a facility (hospital or surgery center) and $173 in a doctor's office.
The Medicare rate is the closest thing to an objective "what this work is actually worth." A fair cash price for the uninsured is generally 1.5–3x that rate. Hospital sticker (gross) charges are often far higher — but almost nobody actually pays them.
What to do if you were overcharged
- 1Send us your bill — we'll identify this code and compare it against the rates shown above.
- 2Get a dispute letter — citing the Medicare rate and your hospital's own published pricing data.
- 3We negotiate for you — 25% of savings, no savings = no fee.