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Sinus surgery (endoscopic) in San Francisco Bay Area CA

Every commercial insurer rate these hospitals posted, as a dollar amount and as a multiple of the hospital's own Medicare base rate.

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CPT 31267

Hospital · insurer	Rate	× Medicare	Plans
John Muir Medical Center - Walnut Creek Campus median $22,816 · local Medicare $9,966 · file 2026-03-23
Aetna	$10,026	1.0×	4
BCBS (other)	$43,398	4.4×	1
Blue Shield of California	$17,962	1.8×	5
Cigna	$13,680	1.4×	3
Elevance/Anthem/Empire	$43,398	4.4×	7
UnitedHealthcare	$27,670	2.8×	7
Stanford Health Care median $24,307 · local Medicare $10,381 · file 2026-04-01
Aetna	$26,573	2.6×	1
Blue Shield of California	$39,140	3.8×	2
Elevance/Anthem/Empire	$16,461	1.6×	1
UnitedHealthcare	$22,041	2.1×	1

CPT 31255

Hospital · insurer	Rate	× Medicare	Plans
John Muir Medical Center - Walnut Creek Campus median $27,086 · local Medicare $9,966 · file 2026-03-23
Aetna	$12,031	1.2×	4
BCBS (other)	$43,398	4.4×	1
Blue Shield of California	$17,962	1.8×	5
Cigna	$19,557	2.0×	3
Elevance/Anthem/Empire	$43,398	4.4×	7
UnitedHealthcare	$34,615	3.5×	7
Stanford Health Care median $36,349 · local Medicare $10,381 · file 2026-04-01
Aetna	$44,125	4.3×	1
Blue Shield of California	$46,272	4.5×	2
Elevance/Anthem/Empire	$16,461	1.6×	1
UnitedHealthcare	$28,573	2.8×	1

CPT 31256

Hospital · insurer	Rate	× Medicare	Plans
John Muir Medical Center - Concord Campus median $20,580 · local Medicare $5,265 · file 2026-03-23
Aetna	$10,026	1.9×	4
BCBS (other)	$27,479	5.2×	2
Blue Shield of California	$13,227	2.5×	6
Cigna	$13,680	2.6×	3
Elevance/Anthem/Empire	$27,479	5.2×	7
UnitedHealthcare	$27,670	5.3×	7
John Muir Medical Center - Walnut Creek Campus median $22,720 · local Medicare $5,265 · file 2026-03-23
Aetna	$10,026	1.9×	4
BCBS (other)	$27,479	5.2×	1
Blue Shield of California	$17,962	3.4×	5
Cigna	$13,680	2.6×	3
Elevance/Anthem/Empire	$27,479	5.2×	7
UnitedHealthcare	$34,615	6.6×	7
Stanford Health Care median $24,307 · local Medicare $5,484 · file 2026-04-01
Aetna	$26,573	4.8×	1
Blue Shield of California	$39,140	7.1×	2
Elevance/Anthem/Empire	$13,697	2.5×	1
UnitedHealthcare	$22,041	4.0×	1

CPT 31276

Hospital · insurer	Rate	× Medicare	Plans
John Muir Medical Center - Walnut Creek Campus median $26,288 · local Medicare $9,966 · file 2026-03-23
Aetna	$10,026	1.0×	4
BCBS (other)	$43,398	4.4×	1
Blue Shield of California	$17,962	1.8×	5
Cigna	$13,680	1.4×	3
Elevance/Anthem/Empire	$43,398	4.4×	7
UnitedHealthcare	$34,615	3.5×	7
Stanford Health Care median $27,573 · local Medicare $10,381 · file 2026-04-01
Aetna	$26,573	2.6×	1
Blue Shield of California	$39,140	3.8×	2
Elevance/Anthem/Empire	$16,461	1.6×	1
UnitedHealthcare	$28,573	2.8×	1

Questions

How much does sinus surgery (endoscopic) cost with commercial insurance in San Francisco Bay Area CA?

2 San Francisco Bay Area CA hospitals post usable commercial rates for CPT 31267, hospital outpatient. The median across hospitals is $23,562; hospital medians range from $22,816 to $24,307. Your cost depends on your plan's deductible and coinsurance.