Dr. Ervin Patrick Wong, MD
- Medicare services, 2024
- 852
- Medicare patients, 2024
- 291
- Part D claims, 2024
- 2,525
- Hospital affiliations
- 1
- Industry payments
- $1,713
- Practice address
- 728 Pacific Ave Ste 506, San Francisco, CA 94133-4449
- Practice phone
- Call (415) 837-0861
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
AAMG Doctors
Physician office · San Francisco, California
Find Dr. Wong's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Ervin Patrick Wong is an ophthalmologist in San Francisco, California
Dr. Wong practices at AAMG Doctors in San Francisco, California.
Dr. Wong's NPI, 1386674471, was assigned on July 4, 2006. Dr. Wong graduated from Loma Linda University School Of Medicine in 1998. Dr. Wong holds California license A81170.
- NPI
- 1386674471NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9234397019
- NPI enumeration date
- July 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (415) 837-0861
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ervin Patrick Wong practices at AAMG Doctors in San Francisco, California
Dr. Wong's primary practice is AAMG Doctors, at 728 Pacific Ave Ste 506, San Francisco, CA 94133-4449. The practice phone is (415) 837-0861.
- AAMG Doctors728 Pacific Ave Ste 506, San Francisco, CA 94133-4449Phone(415) 837-0861
Source: Dmand AI Affiliation Data
Dr. Ervin Patrick Wong is affiliated with 2 sites of care
Dr. Wong's primary practice is AAMG Doctors in San Francisco, California. Dr. Wong is also affiliated with Chinese Hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ervin Patrick Wong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wong practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| AAMG Doctors | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ervin Patrick Wong is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Wong's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Wong is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Wong's licenses on file in 2 states: California and New York.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
- Specialist, New York
Clinical focus
Dmand AI lists age-related macular degeneration, cataract, cataract surgery with lens implant, cold sores or genital herpes, conjunctivitis, dry eye, eyelid inflammation and glaucoma among the conditions Dr. Wong treats.
Ophthalmologists near Dr. Wong
Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ervin Patrick Wong billed Medicare for 852 services in 2024
CMS data shows 852 Medicare services from Dr. Wong across 9 procedure codes in 2024, for 291 Medicare patients. Medicare paid $93,038 for them.
Dr. Wong's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6272024: 48323%
- Tests and treatments
- 2023: 2902024: 33516%
- Surgery
- 2023: 662024: 3448%
Where Dr. Wong's Medicare services took place, 2024
- In an office81896%
- In a facility344%
Dr. Wong compared with the California median for ophthalmologists, 2024
- Dr. Wong
- California median
- Medicare services
- 852vs 1,07921% below
- Medicare patients
- 291vs 42131% below
- Part D claims
- 2,446vs 6184.0 times
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Wong's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Wong?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Wong and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ervin Patrick Wong treated 291 Medicare patients in 2024, average age 78
CMS counts 291 Medicare patients who saw Dr. Wong in 2024. The largest group is 75 to 84, with 118 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 86% are also on Medicaid. Their average risk score is 1.41, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Wong's median patient age at 75, with 54% women.
Dr. Wong's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Wong's Medicare patients by sex, 2024
- Women18363%
- Men10837%
Chronic conditions among Dr. Wong's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes51%
- Arthritis40%
- Chronic kidney disease30%
- Osteoporosis23%
- Heart failure14%
- COPD13%
Share of Medicare patients with each condition. A patient can have several.
Dr. Wong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women54%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ervin Patrick Wong wrote 2,525 Medicare Part D claims in 2024
In 2024, Dr. Wong wrote 2,525 Medicare Part D claims for 649 patients. 73% of them were for generic drugs. CMS names the drug for 2,446 of them, across 16 drugs with 11 or more claims each, at $81,795 in total drug cost. In 2023, CMS named 2,188 claims across 17 drugs.
Dr. Wong's Part D claims by kind of drug, 2024
- Generic1,853 claims73%
- Brand-name672 claims27%
Dr. Wong's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,1882024: 2,44612%
Drugs named by CMS: 16 in 2024, 17 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Ervin Patrick Wong ranks in the 74th percentile for cataract surgery in Medicare
Dr. Wong accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 97 procedures of cataract surgery by Dr. Wong, more than 74% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Wong ranks in Medicare procedure volume
- Cataract surgery
- 74th percentile97 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Ervin Patrick Wong received $1,713 in industry payments from 2016 to 2025
CMS Open Payments shows 50 general payments to Dr. Wong from 11 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 96% of the total. Alcon Laboratories Inc paid the most, $851.
General payments to Dr. Wong by program year, 2016 to 2025
General payments to Dr. Wong by kind, 2016 to 2025
- Food and beverage$1,64896%
- Entertainment$654%
Companies that paid Dr. Wong the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ervin Patrick Wong graduated from Loma Linda University School Of Medicine
Dr. Wong graduated from Loma Linda University School Of Medicine in 1998. Dr. Wong is a member of AAO.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Ervin Patrick Wong accepts plans from 8 insurance carriers
Dr. Wong is in network with 8 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- Molina
Plan types Dr. Wong accepts, by number of carriers
- Medicare8
- PPO6
- HMO3
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Ervin Patrick Wong's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Ervin Patrick Wong
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Ervin Patrick Wong's NPI number?
Dr. Ervin Patrick Wong's NPI number is 1386674471. It was assigned on July 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ervin Patrick Wong?
Dr. Ervin Patrick Wong is an ophthalmologist in San Francisco, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Ervin Patrick Wong practice?
Dr. Wong practices at 728 Pacific Ave Ste 506, San Francisco, CA 94133-4449. Dr. Wong's primary practice is AAMG Doctors in San Francisco, California.
What is Dr. Ervin Patrick Wong's office phone number?
The practice phone on file for Dr. Wong is (415) 837-0861.
What is Dr. Ervin Patrick Wong's medical license number?
Dr. Wong holds California license A81170, one of the licenses on file in 2 states.
Which states has Dr. Ervin Patrick Wong been licensed in?
Dmand AI has state licenses on file for Dr. Wong in California (2002 to 2026) and New York (2002 to 2008).
Which hospitals is Dr. Ervin Patrick Wong affiliated with?
Dr. Wong is affiliated with Chinese Hospital.
Does Dr. Ervin Patrick Wong accept Medicare?
Yes. CMS data shows Dr. Wong billed Medicare for 852 services in 2024, and Dr. Wong accepts Medicare assignment.
How many Medicare patients does Dr. Ervin Patrick Wong see?
CMS counts 291 Medicare patients who saw Dr. Wong in 2024, with an average age of 78.
Is Dr. Ervin Patrick Wong board certified?
Yes. Dr. Wong is board certified in ophthalmology by the American Board of Ophthalmology.
Show 6 more questionsShow fewer questions
What services does Dr. Ervin Patrick Wong bill to Medicare?
In 2024, Dr. Wong's most billed Medicare services were office visit, established patient (99214), eye exam or test (92250) and eye exam or test (92134).
Where did Dr. Ervin Patrick Wong go to medical school?
Dr. Wong graduated from Loma Linda University School Of Medicine in 1998.
What drugs does Dr. Ervin Patrick Wong prescribe most?
In 2024 Medicare Part D data, Dr. Wong's most prescribed drugs by claims were Latanoprost, Azelastine HCl and Timolol Maleate.
Has Dr. Ervin Patrick Wong received payments from drug or device companies?
CMS Open Payments shows $1,713 in general payments to Dr. Wong from 11 companies from 2016 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Ervin Patrick Wong been practicing?
Dr. Wong graduated from medical school in 1998, 28 years ago.
What insurance does Dr. Ervin Patrick Wong accept?
Dr. Wong is in network with 8 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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