Prices at 49 hospitals in Oklahoma, from their machine-readable files. Here the median cash price is $53 — 41% below the US median ($90), roughly 3.6× the Medicare rate.
Lowest cash prices
| Hospital | Location | Cash | Insurer | CMS rating | ER wait | Readmit |
|---|---|---|---|---|---|---|
| McBride Orthopedic Hospital | Oklahoma City, OK | $18 | $44 | — | 57 min | — |
| McAlester Regional Health Center | Mcalester, OK | $23 | $50 | ★ 3/5 | 155 min | — |
| Elkview General Hospital | Hobart, OK | $25 | $14 | — | — | — |
| Oklahoma Spine Hospital | Oklahoma City, OK | $25 | $14 | — | 112 min | — |
| Duncan Regional Hospital, Inc | Duncan, OK | $31 | $101 | ★ 3/5 | 149 min | — |
| Cimarron Memorial Hospital | Boise City, OK | $34 | $45 | — | 107 min | — |
| Clinton Regional Hospital | Clinton, OK | $35 | $13 | — | 108 min | — |
| Tulsa Spine & Specialty Hospital | Tulsa, OK | $36 | $36 | — | 191 min | — |
| McCurtain Memorial Hospital | Idabel, OK | $36 | $13 | ★ 4/5 | 84 min | — |
| Mercy Hospital Ada | Ada, OK | $39 | $20 | ★ 4/5 | 137 min | — |
| Mercy Hospital Ardmore, Inc | Ardmore, OK | $39 | $25 | ★ 4/5 | 134 min | — |
| Exceptional Community Hospital Ardmore | Ardmore, OK | $39 | $25 | — | — | — |
| Jefferson County Hospital | Waurika, OK | $42 | $77 | — | 89 min | — |
| Jackson County Memorial Hospital Authority | Altus, OK | $44 | $37 | ★ 3/5 | 108 min | — |
| Harmon Memorial Hospital | Hollis, OK | $44 | $33 | — | 110 min | — |
| Arbuckle Memorial Hospital | Sulphur, OK | $44 | $43 | ★ 4/5 | 113 min | — |
| Oklahoma Heart Hospital, Llc | Oklahoma City, OK | $46 | $44 | ★ 4/5 | 154 min | — |
| Oklahoma Heart Hospital South, Llc | Oklahoma City, OK | $46 | $44 | ★ 5/5 | 140 min | — |
| Ascension St John Jane Phillips | Bartlesville, OK | $53 | $22 | ★ 3/5 | 182 min | — |
| Ascension St John Medical Center | Tulsa, OK | $53 | $22 | ★ 3/5 | 197 min | — |
| St John Owasso | Owasso, OK | $53 | $22 | ★ 5/5 | 152 min | — |
| Ascension St John Broken Arrow | Broken Arrow, OK | $53 | $22 | ★ 4/5 | 175 min | — |
| Ascension St John Nowata | Nowata, OK | $53 | $22 | — | 92 min | — |
| Ascension St John Sapulpa | Sapulpa, OK | $53 | $22 | — | 137 min | — |
| Newman Memorial Hospital | Shattuck, OK | $58 | $58 | — | 125 min | — |
CMS rating = overall hospital star rating (1–5); ER wait = median minutes in the emergency department; Readmit = 30-day readmission rate (lower is better) — all from Medicare’s Care Compare; “—” = not reported. Data last updated September 2026. Prices from hospitals’ machine-readable files (45 CFR §180); Medicare benchmark from CMS PFS/CLFS/IPPS. Prices below 15% of the median are excluded as likely partial or mis-coded charges. Estimates — confirm with the hospital. Report an incorrect price.
Price comparison (median)
Typical cash price here is $53 — about 3.6× the Medicare rate ($15). High vs Medicare. A fair cash price is usually within ~2× Medicare ($29).
💡 Asking for the cash price instead of the $144 list price could save about $90 (63%).
Rough estimate from this procedure’s median insurer-negotiated rate. Your actual cost depends on your plan — confirm with your insurer.
By city
Ammonia blood test cost in other states
All Ammonia blood test prices (national) → · All hospitals in Oklahoma →