Operating Room Nurse Salary in 2026: CNOR Premium, Call Pay Math, and the $14,000 Gap Between ASCs and Hospitals
By NurseCompensation Research Team · 2026-09-25 · 15 min read
Perioperative nurses earn a mean $92,800 in hospitals vs $78,600 in ambulatory surgery centers. The CNOR certification adds $4,800-$7,200/year. On-call pay at $4-$8/hour converts to $35-$55/hour when called in. Robotics-trained OR nurses command a 12% premium. Here is every data point that matters.
Operating room nursing is one of the better-compensated hospital specialties. It is also one of the least transparent about total pay, because so much of the money is in call pay, weekend differentials, and certification bonuses rather than base salary.
If you are considering perioperative nursing — or you are already there and wondering if you are paid fairly — the data below covers what the job actually pays across settings, shifts, and credentials.
The Base Salary Data
Perioperative/OR Nurse Salary by Setting
| Setting | Mean RN Salary | Difference From All-RN Mean ($89,010) |
|---|---|---|
| Hospital OR (general acute care) | $92,800 | +$3,790 (+4.3%) |
| Level I trauma center OR | $96,400 | +$7,390 (+8.3%) |
| Academic medical center OR | $94,200 | +$5,190 (+5.8%) |
| Ambulatory surgery center (ASC) | $78,600 | -$10,410 (-11.7%) |
| Physician-owned surgical suite | $76,200 | -$12,810 (-14.4%) |
| Cardiac OR (dedicated) | $98,800 | +$9,790 (+11.0%) |
| Neuro/spine OR (dedicated) | $96,200 | +$7,190 (+8.1%) |
| Outpatient procedure center | $74,800 | -$14,210 (-16.0%) |
Sources: BLS OES May 2023 (SOC 29-1141, surgical hospital subset); AORN 2024 Salary and Compensation Survey; MGMA 2024 benchmarking data for ASCs.
The hospital-to-ASC gap is $14,200 (18.1%). Trauma center and cardiac OR positions pay the most because of higher acuity, longer cases, and more call requirements.
By Experience Level (Hospital Setting)
| Experience | OR Nurse Mean Salary | All-RN Mean | OR Premium |
|---|---|---|---|
| New grad (periop residency, 0-1 year) | $66,800 | $64,800 | +$2,000 (+3.1%) |
| 2-5 years | $82,400 | $76,400 | +$6,000 (+7.9%) |
| 6-10 years | $94,200 | $86,200 | +$8,000 (+9.3%) |
| 11-20 years | $102,800 | $94,800 | +$8,000 (+8.4%) |
| 20+ years | $108,400 | $102,400 | +$6,000 (+5.9%) |
The OR premium is largest at 6-10 years ($8,000, 9.3%), when nurses have mastered multiple service lines and hold CNOR certification. The premium compresses after 20 years as general RN salaries catch up through leadership and seniority.
By Region
| Region | Hospital OR Nurse Mean | ASC OR Nurse Mean | Hospital-ASC Gap |
|---|---|---|---|
| Northeast | $98,400 | $84,200 | $14,200 (14.4%) |
| Southeast | $82,600 | $70,400 | $12,200 (14.8%) |
| Midwest | $88,200 | $74,800 | $13,400 (15.2%) |
| Southwest | $86,800 | $72,400 | $14,400 (16.6%) |
| West Coast | $108,400 | $92,600 | $15,800 (14.6%) |
| Mountain | $84,600 | $71,200 | $13,400 (15.8%) |
The Call Pay Math
Call pay is where OR nursing compensation gets complicated — and where a significant portion of total pay hides.
On-Call Compensation Structure
| Component | Typical Rate | Variation |
|---|---|---|
| On-call (standby) rate | $4-$8/hour | Some hospitals: flat $150-$250/night |
| Called-in rate | Time-and-a-half to double-time | Minimum 2-4 hour guarantee per call-in |
| Weekend call-in | Double-time at many facilities | Some: 2.5x for holiday call |
| Callback guarantee | 2-4 hours at premium rate per call-in | Even if case takes 30 minutes |
What Call Actually Pays: Worked Examples
Scenario 1: Weeknight call, not called in
| Factor | Value |
|---|---|
| Standby: 7 PM - 7 AM (12 hours) | 12 x $6/hr = $72 |
| Total earned | $72 for sleeping with phone nearby |
| Annualized (2 calls/week x 50 weeks) | $7,200 |
Scenario 2: Weeknight call, called in for one case
| Factor | Value |
|---|---|
| Standby: 7 PM - 11 PM (4 hours before call-in) | 4 x $6 = $24 |
| Called in: 11 PM - 2 AM (3 hours) at 1.5x ($62.07/hr) | 3 x $62.07 = $186.21 |
| 4-hour minimum guarantee at 1.5x | 4 x $62.07 = $248.28 (you get the higher amount) |
| Standby remainder: 2 AM - 7 AM | 5 x $6 = $30 |
| Total earned | $302.28 |
| Effective hourly rate (12 hours disrupted) | $25.19/hr |
Scenario 3: Weekend call, called in for two cases
| Factor | Value |
|---|---|
| Standby: 7 AM - 7 PM (12 hours) | 12 x $8 = $96 |
| Called in twice: 8 AM-12 PM and 2 PM-5 PM (7 hours) at 2x ($82.76/hr) | 7 x $82.76 = $579.32 |
| Total earned | $675.32 |
| Effective hourly rate | $56.28/hr |
Annual Call Pay Estimates
| Call Frequency | Called In 30% of Time | Called In 50% of Time |
|---|---|---|
| 4 calls/month | $6,800-$9,200/year | $10,400-$14,800/year |
| 6 calls/month | $10,200-$13,800/year | $15,600-$22,200/year |
| 8 calls/month | $13,600-$18,400/year | $20,800-$29,600/year |
Based on median OR nurse base rate of $41.38/hr, blended weeknight/weekend call patterns.
Call pay adds $6,800-$29,600 to annual compensation depending on frequency and callback rate. At high-volume trauma centers, call pay can exceed $25,000/year — making total compensation $115,000-$125,000.
The CNOR Certification Premium
CNOR Data (CCI - Competency & Credentialing Institute)
| Metric | Value |
|---|---|
| CNOR holders (active) | 38,400 |
| Exam cost | $395 (AORN members) / $465 (non-members) |
| Eligibility | 2 years perioperative experience + 2,400 clinical hours |
| Pass rate (first attempt) | 68% |
| Recertification | Every 5 years (150 contact hours or re-exam) |
Salary Impact
| Credential | Mean Salary | Premium Over Non-Certified |
|---|---|---|
| OR nurse, no certification | $88,400 | Baseline |
| CNOR certified | $95,200 | +$6,800 (+7.7%) |
| CNOR + CRNFA (RN First Assistant) | $108,400 | +$20,000 (+22.6%) |
| CNOR + robotics training (da Vinci certified) | $100,800 | +$12,400 (+14.0%) |
Source: AORN 2024 Salary Survey (certified vs non-certified respondents); CCI certification impact data.
CNOR adds approximately $6,800/year. The CRNFA (RN First Assistant) credential — which allows the nurse to perform aspects of surgery under surgeon supervision — commands a $20,000 premium. Robotics training (da Vinci surgical system certification) adds $12,400.
CNOR ROI
| Investment | Value |
|---|---|
| Exam + prep materials | $600 |
| Study time (100-200 hours) | Opportunity cost only |
| Annual salary increase | $6,800 |
| Break-even | 1.1 months |
| 5-year ROI | $33,400 |
| 10-year ROI (with recert costs) | $66,000 |
CNOR has one of the fastest break-even points of any nursing certification — just over one month.
Hospital vs ASC: The Full Comparison
| Factor | Hospital OR | Ambulatory Surgery Center |
|---|---|---|
| Base salary | $92,800 | $78,600 |
| Call pay available | Yes ($6,800-$25,000+) | Sometimes ($2,000-$6,000) |
| Total compensation potential | $99,600-$118,000 | $80,600-$84,600 |
| Schedule | Variable; weekends, holidays, call | M-F, 6 AM-4 PM; minimal call |
| Case complexity | High (trauma, open heart, transplant) | Low-moderate (ortho, GI, ophtho) |
| Overtime availability | High (emergency cases) | Low (scheduled cases only) |
| Physical demands | Higher (longer cases, heavier patients) | Lower (shorter cases, healthier patients) |
| Benefits package | Full (pension/403b, insurance, PTO) | Varies (some lean) |
| Skill maintenance | Broad — all service lines | Narrow — repetitive case types |
| Career advancement | Clinical ladder, leadership, education | Limited |
| Autonomy | Moderate (within team structure) | Higher (smaller team, more ownership) |
| Burnout rate | Higher (AORN survey: 34%) | Lower (22%) |
The Lifetime Earnings Comparison
| Path | 20-Year Cumulative Earnings |
|---|---|
| Hospital OR nurse (base + avg call) | $2,190,000 |
| Hospital OR nurse + CNOR + call | $2,326,000 |
| ASC OR nurse | $1,724,000 |
| Difference (hospital vs ASC) | +$466,000-$602,000 |
Over 20 years, a hospital OR nurse with CNOR and moderate call earns $466,000-$602,000 more than an ASC OR nurse. The trade-off is schedule predictability, physical demands, and burnout risk.
Subspecialty Premiums Within the OR
| OR Subspecialty | Premium Over General OR | Why |
|---|---|---|
| Cardiac surgery | +8-12% | Longest cases, highest acuity, bypass/ECMO |
| Neurosurgery | +6-10% | Complex positioning, microscope, long cases |
| Transplant | +8-14% | Unpredictable schedule, extended call, rare skills |
| Robotics (da Vinci, Intuitive) | +10-14% | Technical training, growing demand |
| Trauma (Level I) | +4-8% | Call-heavy, high-stress environment |
| Orthopedics | +2-4% | High volume, moderate complexity |
| Ophthalmology | -4-8% | Short cases, lower acuity |
| GI/Endoscopy | -6-10% | Procedural, not true surgical OR |
Sources: BLS Occupational Employment and Wage Statistics (May 2023, SOC 29-1141, surgical hospital subset); AORN (Association of periOperative Registered Nurses) 2024 Salary and Compensation Survey; CCI (Competency & Credentialing Institute) CNOR certification statistics and impact data; MGMA 2024 ASC Benchmarking Report; ACS NSQIP surgical volume data; Medscape OR Nurse Compensation Report 2024; Ambulatory Surgery Center Association (ASCA) industry data.