Medicare FFS ophthalmology

Provider service volume comparison

Compare two ophthalmology providers by CY2023 Medicare FFS service volume and CPT/HCPCS mix.

Provider A

Grace S Zhang, MD

NPI 1679501670 | Santa Rosa, CA

National rank
#12,444
Total services
959
VS
Provider B

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Shared CPT/HCPCS0Visible service rows found for both providers
Provider A only10
Provider B only0
Total service gap959
Beneficiary gap300
Allowed amount gap$156,785.49

CPT/HCPCS service volume comparison

Rows compare visible public provider-service lines by Medicare FFS service count.

CPT/HCPCSDescriptionProvider A servicesProvider B servicesAbsolute differenceHigher Medicare FFS service volume
92136Measurement of corneal curvature and depth of eye
211
0
211Provider A higher
99213Established patient office or other outpatient visit, 20-29 minutes
182
0
182Provider A higher
66984Removal of cataract with insertion of prosthetic lens
167
0
167Provider A higher
92134Imaging of retina
147
0
147Provider A higher
92004New patient complete exam of visual system
77
0
77Provider A higher
92014Established patient complete exam of visual system
26
0
26Provider A higher
66982Complex removal of cataract with insertion of prosthetic lens
25
0
25Provider A higher
99212Established patient office or other outpatient visit, 10-19 minutes
22
0
22Provider A higher
92012Established patient problem focused exam of visual system
18
0
18Provider A higher
99204New patient office or other outpatient visit, 45-59 minutes
17
0
17Provider A higher
Largest visible gaps5Rows sorted by shared rows first, then service-volume difference
Provider A total payment$117,876.07
Provider B total paymentNot available