Medicare Reimbursement for CPT 23665

CPT 23665 is a physician procedure code reported under the Medicare Physician Fee Schedule (PFS). This page shows the estimated Medicare-allowed amount for this code nationally and by locality, broken out for non-facility (e.g., office) and facility (e.g., hospital) settings. Actual payment depends on where the service is performed and the patient's specific plan details.

Medicare allowed amount (2026)

Locality	Non-facility	Facility
National (unadjusted)	$498.34	$416.51
ALASKA* (AK)	$579.53	$492.38
ALABAMA (AL)	$444.68	$373.08
ARKANSAS (AR)	$437.97	$367.67
ARIZONA (AZ)	$483.82	$404.52
SAN FRANCISCO-OAKLAND-BERKELEY (SAN FRANCISCO/SAN MATEO/ALAMEDA/CONTRA COSTA CNTY) (CA)	$621.99	$506.61
SAN JOSE-SUNNYVALE-SANTA CLARA (SANTA CLARA CNTY) (CA)	$633.36	$515.36
OXNARD-THOUSAND OAKS-VENTURA (CA)	$547.02	$450.29
LOS ANGELES-LONG BEACH-ANAHEIM (LOS ANGELES/ORANGE CNTY) (CA)	$550.67	$453.86
NAPA (CA)	$591.09	$483.24
SAN FRANCISCO-OAKLAND-BERKELEY (MARIN CNTY) (CA)	$623.13	$507.75
VALLEJO (CA)	$589.45	$481.60
BAKERSFIELD (CA)	$518.24	$428.55
CHICO (CA)	$515.50	$425.81
FRESNO (CA)	$515.50	$425.81
HANFORD-CORCORAN (CA)	$515.50	$425.81
MADERA (CA)	$515.50	$425.81
MERCED (CA)	$515.50	$425.81
MODESTO (CA)	$515.50	$425.81
REDDING (CA)	$515.50	$425.81
RIVERSIDE-SAN BERNARDINO-ONTARIO (CA)	$526.24	$436.55
SACRAMENTO-ROSEVILLE-FOLSOM (CA)	$539.37	$444.20
SALINAS (CA)	$537.36	$442.52
SAN JOSE-SUNNYVALE-SANTA CLARA (SAN BENITO CNTY) (CA)	$638.00	$520.00
SANTA CRUZ-WATSONVILLE (CA)	$553.39	$453.96
SANTA ROSA-PETALUMA (CA)	$558.83	$458.34
STOCKTON (CA)	$515.50	$425.81
VISALIA (CA)	$515.50	$425.81
YUBA CITY (CA)	$515.50	$425.81
EL CENTRO (CA)	$515.67	$425.98
SAN DIEGO-CHULA VISTA-CARLSBAD (CA)	$549.00	$451.13
SAN LUIS OBISPO-PASO ROBLES (CA)	$528.97	$435.76
SANTA MARIA-SANTA BARBARA (CA)	$539.10	$443.68
REST OF CALIFORNIA (CA)	$515.50	$425.81
COLORADO (CO)	$512.90	$425.83
CONNECTICUT (CT)	$532.51	$444.38
DC + MD/VA SUBURBS (DC)	$566.07	$469.67
DELAWARE (DE)	$491.97	$411.12
FORT LAUDERDALE (FL)	$529.40	$446.51
MIAMI (FL)	$562.26	$477.07
REST OF FLORIDA (FL)	$501.36	$423.13
ATLANTA (GA)	$510.52	$427.38
REST OF GEORGIA (GA)	$470.92	$397.92
HAWAII, GUAM (HI)	$527.20	$434.16
IOWA (IA)	$451.57	$376.69
IDAHO (ID)	$455.68	$380.39
EAST ST. LOUIS (IL)	$507.15	$431.86
SUBURBAN CHICAGO (IL)	$533.65	$449.61
CHICAGO (IL)	$544.22	$461.98
REST OF ILLINOIS (IL)	$489.89	$415.18
INDIANA (IN)	$458.30	$382.44
KANSAS (KS)	$451.70	$377.72
KENTUCKY (KY)	$460.73	$387.98
NEW ORLEANS (LA)	$484.40	$407.40
REST OF LOUISIANA (LA)	$460.91	$388.49
METROPOLITAN BOSTON (MA)	$561.66	$463.96
REST OF MASSACHUSETTS (MA)	$510.59	$424.42
BALTIMORE/SURR. CNTYS (MD)	$531.55	$443.75
REST OF MARYLAND (MD)	$500.88	$418.06
SOUTHERN MAINE (ME)	$483.20	$402.10
REST OF MAINE (ME)	$460.65	$385.37
DETROIT (MI)	$510.29	$431.32
REST OF MICHIGAN (MI)	$475.39	$400.68
MINNESOTA (MN)	$483.91	$399.71
METROPOLITAN ST. LOUIS (MO)	$483.37	$405.47
METROPOLITAN KANSAS CITY (MO)	$478.46	$401.62
REST OF MISSOURI (MO)	$454.24	$383.70
MISSISSIPPI (MS)	$446.08	$375.62
MONTANA** (MT)	$498.27	$416.44
NORTH CAROLINA (NC)	$465.29	$388.94
NORTH DAKOTA** (ND)	$478.50	$396.67
NEBRASKA (NE)	$453.44	$377.91
NEW HAMPSHIRE (NH)	$507.01	$421.82
NORTHERN NJ (NJ)	$560.29	$465.37
REST OF NEW JERSEY (NJ)	$536.47	$447.11
NEW MEXICO (NM)	$479.05	$404.01
NEVADA** (NV)	$493.08	$411.16
MANHATTAN (NY)	$578.37	$483.28
NYC SUBURBS/LONG ISLAND (NY)	$595.88	$498.59
POUGHKPSIE/N NYC SUBURBS (NY)	$541.94	$452.34
QUEENS (NY)	$579.83	$483.10
REST OF NEW YORK (NY)	$472.76	$395.02
OHIO (OH)	$471.35	$396.64
OKLAHOMA (OK)	$457.37	$384.29
PORTLAND (OR)	$526.99	$436.08
REST OF OREGON (OR)	$487.17	$405.66
METROPOLITAN PHILADELPHIA (PA)	$520.36	$435.18
REST OF PENNSYLVANIA (PA)	$470.81	$395.69
PUERTO RICO (PR)	$501.29	$418.55
RHODE ISLAND (RI)	$507.95	$423.42
SOUTH CAROLINA (SC)	$469.52	$393.91
SOUTH DAKOTA** (SD)	$476.16	$394.33
TENNESSEE (TN)	$454.37	$379.98
BRAZORIA (TX)	$489.39	$408.29
DALLAS (TX)	$493.71	$412.21
GALVESTON (TX)	$491.62	$410.36
HOUSTON (TX)	$509.92	$428.66
BEAUMONT (TX)	$467.77	$393.31
FORT WORTH (TX)	$491.01	$410.32
AUSTIN (TX)	$513.01	$426.43
REST OF TEXAS (TX)	$479.12	$401.46
UTAH (UT)	$476.14	$399.21
VIRGINIA (VA)	$483.20	$402.75
VIRGIN ISLANDS (VI)	$501.29	$418.55
VERMONT (VT)	$478.71	$397.69
SEATTLE (KING CNTY) (WA)	$570.93	$470.52
REST OF WASHINGTON (WA)	$508.93	$422.77
WISCONSIN (WI)	$462.07	$383.67
WEST VIRGINIA (WV)	$471.69	$400.58
WYOMING** (WY)	$489.66	$407.82

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Maximum units per day (MUE)

Medicare’s Medically Unlikely Edit caps this code at 1 unit per patient per day — Date of Service Edit: Policy. Units above the MUE are denied; some MUEs can be exceeded only with appropriate documentation and modifiers where policy allows.

How the amount is calculated

Medicare's allowed amount for a procedure code is built from three Relative Value Units (RVUs) — physician work, practice expense, and malpractice — each adjusted by the Geographic Practice Cost Index (GPCI) for the specific locality where the service is furnished. These locality-adjusted RVUs are summed and then multiplied by the annual national conversion factor to produce the dollar amount. Non-facility (e.g., office) and facility (e.g., hospital, ASC) settings use different practice-expense RVUs, since the resource costs for supplies, equipment, and staff differ, which is why the same code can show two different payment amounts depending on place of service.

RVUs — work 4.54, practice expense 9.38 (non-facility) / 6.93 (facility), malpractice 1 — × the locality GPCIs × the 2026 conversion factor of $33.40.

Good to know

This is an estimate only, not a guarantee of payment.
Medicare typically pays 80% of the allowed amount after the patient meets the Part B deductible; the patient or secondary payer is generally responsible for the remainder.
Modifiers, multiple-procedure reductions, sequestration, and annual budget-neutrality adjustments can change the actual paid amount.
Rates vary by locality due to GPCI differences; always confirm the specific locality used for your claim.
Verify current rates and coverage rules with your Medicare Administrative Contractor (MAC) before billing or appealing a denial.

Frequently asked

Why does CPT 23665 pay differently in a facility versus a non-facility setting?

The practice-expense RVU component differs because non-facility settings (like a physician's office) bear the cost of supplies, equipment, and staff, while in a facility setting those costs are borne by the facility itself and billed separately.

Why might the amount I was paid differ from the national rate shown here?

Medicare adjusts RVUs by locality-specific GPCIs before applying the conversion factor, so actual payment varies by where the service was performed. Sequestration and other claim-level adjustments can also affect the final amount.

Does this amount reflect what the patient will owe?

No. This figure represents the Medicare-allowed amount. The patient typically owes 20% coinsurance after the deductible, and additional costs may apply depending on secondary coverage.

Can modifiers change the reimbursement for this code?

Yes. Modifiers indicating bilateral procedures, reduced services, or multiple-procedure scenarios can increase or decrease the allowed amount from the base rate shown here.

More free billing tools: all Medicare fees · fee calculator · denial code decoder

Estimated Medicare Physician Fee Schedule amount. Medicare generally pays 80% after the deductible; actual amounts vary by locality, modifiers, sequestration, and annual updates. Verify with your MAC.