npidexNPI registry + Medicare data

ROBERT CHANG, MD

Glaucoma Specialist (Ophthalmology) Physician · STANFORD, CA

Individual Active NPI 1417044280

Medicare payment data Part B · 2024

YearBeneficiariesServicesSubmittedAllowedPaid
20247523,165$1,794,293$364,384$273,146
20236662,430$1,698,100$336,595$256,757
20226192,313$1,522,920$317,863$237,105

Top procedures (2024)

HCPCSDescriptionServicesAvg allowedAvg paid
99214Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more518$111$78
92133Imaging of optic nerve492$25$18
92083Exam of visual field with extended testing467$31$23
99213Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more389$75$54
92025Ct scan of cornea157$23$17
92014Established patient complete exam of visual system147$88$62
92020Exam of the internal drainage system of eye121$24$17
99215Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more111$164$116
66984Removal of cataract with insertion of prosthetic lens102$643$503
92136Measurement of corneal curvature and depth of eye97$36$27
76514Ultrasound scan of cornea to determine thickness97$9$6
92134Imaging of retina72$29$20

Taxonomy & licensure

SpecialtyCodePrimaryLicenseState
Glaucoma Specialist (Ophthalmology) Physician207WX0009X✓A108857CA
Ophthalmology Physician207W00000X2004011762MO
Ophthalmology Physician207W00000XME99224FL
Ophthalmology Physician207W00000XA108857CA

Medicare eligibility

Part B
Yes
DME
Yes
Home health
Yes
Power mobility
Yes
Hospice
Yes

Other Glaucoma Specialist (Ophthalmology) Physician providers in California

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Source: NPPES (public domain) and CMS Medicare Physician & Other Practitioners data. Not affiliated with CMS, NPPES, or any government agency.