npidexNPI registry + Medicare data

MARK WILLIAMS, M.D.

Retina Specialist (Ophthalmology) Physician · ORANGE, CA

Individual Active NPI 1780118802

Medicare payment data Part B · 2024

YearBeneficiariesServicesSubmittedAllowedPaid
202450414,207$2,345,129$1,027,827$807,801
20232221,055$331,550$136,572$108,633
20223383$30,395$10,278$7,945

Top procedures (2024)

HCPCSDescriptionServicesAvg allowedAvg paid
J2777Injection, faricimab-svoa, 0.1 mg7,860$34$27
92134Imaging of retina1,534$44$34
92201Extended exam of the back part of the eye with retinal drawing1,400$26$21
99214Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more773$138$107
67028Injection of drug into eye488$122$96
99205New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more319$234$175
J7999Compounded drug, not otherwise classified235$93$73
99457Management using the results of remote vital sign monitoring per calendar month, first 20 minutes193$54$43
J0178Injection, aflibercept, 1 mg128$823$655
92014Established patient complete exam of visual system128$140$102
92235Exam of retinal blood vessels using a special camera after injection of a dye104$183$146
67145Photocoagulation treatment to prevent detachment of retina82$270$215

Taxonomy & licensure

SpecialtyCodePrimaryLicenseState
Retina Specialist (Ophthalmology) Physician207WX0107X✓A187615CA
Ophthalmology Physician207W00000XA187615CA

Medicare eligibility

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

Other Retina Specialist (Ophthalmology) Physician providers in California

See all Retina Specialist (Ophthalmology) Physician providers in California →

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