What is Ervin Wong's specialty?

Ervin Wong (NPI 1386674471) is a Medicare-billing provider whose primary specialty is Ophthalmology in San Francisco, CA.

Where does Ervin Wong practice?

Ervin Wong practices in San Francisco, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1386674471.

How much does Medicare pay Ervin Wong?

Ervin Wong (NPI 1386674471) received approximately $104K in total Medicare Part B payments, serving 291 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1386674471

Ervin WongM.D.

OphthalmologySan Francisco, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

641

Unique beneficiaries

—

Total services

852

Distinct HCPCS

Medicare payment

$93K

Peer benchmark

Total Medicare services vs. 2,144 Ophthalmology providers in CA — below median (cohort median 1,859).

PRESCRIBING · PART D · 2024

Total Rx claims

2,446

Beneficiaries

—

Total drug cost

$82K

Distinct drugs

Brand share

10.3%

Top prescribed drugs

Latanoprost713 claims

Azelastine Hcl563 claims

Timolol Maleate345 claims

Prednisolone Acetate238 claims

Moxifloxacin Hcl97 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Ervin Wong's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 9 inbound referrers · 19 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Irwin Chow Anesthesiology · San Francisco, CA	32	136
Gustin Ho Internal Medicine · San Francisco, CA	17	54
Shu Wing Chan Internal Medicine · San Francisco, CA	16	30
Wenguang Zhao Family Practice · San Francisco, CA	15	66
CHUNG YEUNG, DOROTHY	13	34
CITY & COUNTY OF SAN FRANCISCO	13	24
Victor Huie Internal Medicine · San Francisco, CA	12	24
Scott Huang Family Practice · San Francisco, CA	12	32
Man-Kit Leung Otolaryngology · San Francisco, CA	11	17

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
CHINESE HOSPITAL ASSOCIATION	135	512
NORTH EAST MEDICAL SERVICES	33	88
Roger Eng Diagnostic Radiology · San Francisco, CA	30	55
Eric Wang Diagnostic Radiology · Santa Cruz, CA	27	39
Yang Sun Anesthesiology · Sacramento, CA	27	112
William Chung Internal Medicine · San Francisco, CA	23	57
Kenneth Chang Internal Medicine · San Francisco, CA	23	70
Irwin Chow Anesthesiology · San Francisco, CA	20	42
Robert Choy Podiatry · San Francisco, CA	16	30
Gustin Ho Internal Medicine · San Francisco, CA	14	31
CHUNG YEUNG, DOROTHY	13	33
UNIVERSITY OF CALIFORNIA, SAN FRANCISCO	13	22

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events