Medicare Reimbursement for CPT 20664

This page covers a specific CPT procedure code (descriptor not shown due to AMA licensing restrictions). It displays the Medicare Physician Fee Schedule (PFS) estimated allowed amount for 2026, including the national rate and how it can vary by locality and by site of service (non-facility vs. facility).

Medicare allowed amount (2026)

Locality	Non-facility	Facility
National (unadjusted)	$941.91	$941.91
ALASKA* (AK)	$1074.76	$1074.76
ALABAMA (AL)	$822.50	$822.50
ARKANSAS (AR)	$807.84	$807.84
ARIZONA (AZ)	$907.28	$907.28
SAN FRANCISCO-OAKLAND-BERKELEY (SAN FRANCISCO/SAN MATEO/ALAMEDA/CONTRA COSTA CNTY) (CA)	$1089.00	$1089.00
SAN JOSE-SUNNYVALE-SANTA CLARA (SANTA CLARA CNTY) (CA)	$1105.29	$1105.29
OXNARD-THOUSAND OAKS-VENTURA (CA)	$985.76	$985.76
LOS ANGELES-LONG BEACH-ANAHEIM (LOS ANGELES/ORANGE CNTY) (CA)	$996.15	$996.15
NAPA (CA)	$1046.14	$1046.14
SAN FRANCISCO-OAKLAND-BERKELEY (MARIN CNTY) (CA)	$1093.69	$1093.69
VALLEJO (CA)	$1039.38	$1039.38
BAKERSFIELD (CA)	$939.92	$939.92
CHICO (CA)	$929.19	$929.19
FRESNO (CA)	$929.19	$929.19
HANFORD-CORCORAN (CA)	$929.19	$929.19
MADERA (CA)	$929.19	$929.19
MERCED (CA)	$929.19	$929.19
MODESTO (CA)	$929.19	$929.19
REDDING (CA)	$929.19	$929.19
RIVERSIDE-SAN BERNARDINO-ONTARIO (CA)	$973.25	$973.25
SACRAMENTO-ROSEVILLE-FOLSOM (CA)	$967.33	$967.33
SALINAS (CA)	$963.79	$963.79
SAN JOSE-SUNNYVALE-SANTA CLARA (SAN BENITO CNTY) (CA)	$1124.46	$1124.46
SANTA CRUZ-WATSONVILLE (CA)	$987.18	$987.18
SANTA ROSA-PETALUMA (CA)	$996.32	$996.32
STOCKTON (CA)	$929.19	$929.19
VISALIA (CA)	$929.19	$929.19
YUBA CITY (CA)	$929.19	$929.19
EL CENTRO (CA)	$929.88	$929.88
SAN DIEGO-CHULA VISTA-CARLSBAD (CA)	$981.91	$981.91
SAN LUIS OBISPO-PASO ROBLES (CA)	$949.67	$949.67
SANTA MARIA-SANTA BARBARA (CA)	$966.14	$966.14
REST OF CALIFORNIA (CA)	$929.19	$929.19
COLORADO (CO)	$946.11	$946.11
CONNECTICUT (CT)	$1014.10	$1014.10
DC + MD/VA SUBURBS (DC)	$1059.97	$1059.97
DELAWARE (DE)	$923.90	$923.90
FORT LAUDERDALE (FL)	$1059.56	$1059.56
MIAMI (FL)	$1172.35	$1172.35
REST OF FLORIDA (FL)	$990.34	$990.34
ATLANTA (GA)	$978.24	$978.24
REST OF GEORGIA (GA)	$916.95	$916.95
HAWAII, GUAM (HI)	$949.08	$949.08
IOWA (IA)	$818.24	$818.24
IDAHO (ID)	$831.10	$831.10
EAST ST. LOUIS (IL)	$1043.68	$1043.68
SUBURBAN CHICAGO (IL)	$1063.55	$1063.55
CHICAGO (IL)	$1125.22	$1125.22
REST OF ILLINOIS (IL)	$978.13	$978.13
INDIANA (IN)	$836.23	$836.23
KANSAS (KS)	$827.76	$827.76
KENTUCKY (KY)	$877.31	$877.31
NEW ORLEANS (LA)	$932.56	$932.56
REST OF LOUISIANA (LA)	$881.34	$881.34
METROPOLITAN BOSTON (MA)	$1032.57	$1032.57
REST OF MASSACHUSETTS (MA)	$944.39	$944.39
BALTIMORE/SURR. CNTYS (MD)	$1014.61	$1014.61
REST OF MARYLAND (MD)	$939.59	$939.59
SOUTHERN MAINE (ME)	$886.72	$886.72
REST OF MAINE (ME)	$851.66	$851.66
DETROIT (MI)	$1019.87	$1019.87
REST OF MICHIGAN (MI)	$918.26	$918.26
MINNESOTA (MN)	$858.60	$858.60
METROPOLITAN ST. LOUIS (MO)	$919.32	$919.32
METROPOLITAN KANSAS CITY (MO)	$909.68	$909.68
REST OF MISSOURI (MO)	$872.59	$872.59
MISSISSIPPI (MS)	$839.70	$839.70
MONTANA** (MT)	$941.63	$941.63
NORTH CAROLINA (NC)	$860.20	$860.20
NORTH DAKOTA** (ND)	$859.97	$859.97
NEBRASKA (NE)	$819.43	$819.43
NEW HAMPSHIRE (NH)	$944.19	$944.19
NORTHERN NJ (NJ)	$1048.14	$1048.14
REST OF NEW JERSEY (NJ)	$1012.21	$1012.21
NEW MEXICO (NM)	$930.10	$930.10
NEVADA** (NV)	$919.34	$919.34
MANHATTAN (NY)	$1120.87	$1120.87
NYC SUBURBS/LONG ISLAND (NY)	$1171.12	$1171.12
POUGHKPSIE/N NYC SUBURBS (NY)	$1030.87	$1030.87
QUEENS (NY)	$1110.53	$1110.53
REST OF NEW YORK (NY)	$877.12	$877.12
OHIO (OH)	$901.57	$901.57
OKLAHOMA (OK)	$860.18	$860.18
PORTLAND (OR)	$964.70	$964.70
REST OF OREGON (OR)	$899.03	$899.03
METROPOLITAN PHILADELPHIA (PA)	$993.96	$993.96
REST OF PENNSYLVANIA (PA)	$895.26	$895.26
PUERTO RICO (PR)	$945.08	$945.08
RHODE ISLAND (RI)	$948.95	$948.95
SOUTH CAROLINA (SC)	$885.01	$885.01
SOUTH DAKOTA** (SD)	$850.31	$850.31
TENNESSEE (TN)	$834.69	$834.69
BRAZORIA (TX)	$909.89	$909.89
DALLAS (TX)	$923.36	$923.36
GALVESTON (TX)	$917.47	$917.47
HOUSTON (TX)	$993.06	$993.06
BEAUMONT (TX)	$889.24	$889.24
FORT WORTH (TX)	$920.39	$920.39
AUSTIN (TX)	$954.46	$954.46
REST OF TEXAS (TX)	$904.23	$904.23
UTAH (UT)	$899.26	$899.26
VIRGINIA (VA)	$893.25	$893.25
VIRGIN ISLANDS (VI)	$945.08	$945.08
VERMONT (VT)	$869.00	$869.00
SEATTLE (KING CNTY) (WA)	$1041.16	$1041.16
REST OF WASHINGTON (WA)	$938.44	$938.44
WISCONSIN (WI)	$826.44	$826.44
WEST VIRGINIA (WV)	$938.97	$938.97
WYOMING** (WY)	$906.04	$906.04

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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 PFS amounts are built from three Relative Value Units (RVUs): physician work, practice expense (PE), and malpractice (MP). Each RVU component is adjusted by Geographic Practice Cost Indices (GPCIs) specific to the locality where the service is billed, then the adjusted RVUs are summed and multiplied by the annual conversion factor to produce the dollar estimate. Practice expense RVUs often differ between non-facility (e.g., office) and facility (e.g., hospital) settings because overhead costs differ; for this code, the non-facility and facility PE RVUs are the same, so the national estimates shown are equal. Final amounts also reflect CMS's annual budget-neutrality adjustments to the conversion factor.

RVUs — work 9.81, practice expense 14.26 (non-facility) / 14.26 (facility), malpractice 4.13 — × 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 approved amount after the patient's deductible is met; the beneficiary or secondary payer is responsible for the remainder.
Actual payment varies by locality GPCI values, applicable modifiers, sequestration reductions, and annual CMS budget-neutrality adjustments.
Always verify current rates and coverage rules with your Medicare Administrative Contractor (MAC) before billing.

Frequently asked

Why don't you show the CPT code description?

CPT code descriptors are copyrighted and licensed by the American Medical Association, so we reference the code generically as 'this procedure code' rather than reproducing the official descriptor.

Why is the non-facility amount the same as the facility amount for this code?

The practice expense RVU — the component that usually differs by site of service — is identical for non-facility and facility settings for this code, so both estimates come out the same.

Will my locality's payment match the national estimate shown here?

Not necessarily. The national amount uses standardized GPCI inputs; your actual payment depends on the GPCIs assigned to your specific Medicare locality.

Does this amount reflect what I'll actually be paid?

No. It's a baseline estimate before modifiers, sequestration, deductible status, and other claim-specific adjustments are applied.

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.