Dr. Brian Hong Chen, MD
- Medicare services, 2024
- 2,950
- Medicare patients, 2024
- 770
- Part D claims, 2024
- 9,607
- Publications
- 1
- MIPS score, 2024
- 75
- Practice address
- 44815 Fig Avenue, Suite 100, Lancaster, CA 93534
- Practice phone
- Call (626) 479-8383
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Acuity Eye Group - Trinity Surgical Solutions
Surgery Center - Medicare-Certified · Lancaster, California
Find Dr. Chen's professional email, personal email and mobile number
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Dr. Brian Hong Chen is an ophthalmologist in Lancaster, California
Dr. Chen practices at Acuity Eye Group - Trinity Surgical Solutions in Lancaster, California.
Dr. Chen's NPI, 1952631632, was assigned on January 2, 2010. Dr. Chen graduated from Drexel University College Of Medicine in 2009. Dr. Chen's California license number on file is 127719.
- NPI
- 1952631632NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9335365501
- NPI enumeration date
- January 2, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (626) 479-8383
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Brian Hong Chen practices at Acuity Eye Group - Trinity Surgical Solutions in Lancaster, California
Dr. Chen's primary practice is Acuity Eye Group - Trinity Surgical Solutions, at 44815 Fig Avenue, Suite 100, Lancaster, CA 93534. The practice phone is (626) 479-8383.
- Acuity Eye Group - Trinity Surgical Solutions44815 Fig Avenue, Suite 100, Lancaster, CA 93534Phone(626) 479-8383
Source: Dmand AI Affiliation Data
Dr. Brian Hong Chen is affiliated with 3 sites of care and 2 medical groups
Dr. Chen's primary practice is Acuity Eye Group - Trinity Surgical Solutions in Lancaster, California. Dmand AI also links Dr. Chen to 2 group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Brian Hong Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Acuity Eye Group - Trinity Surgical Solutions | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Brian Hong Chen is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Chen is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Chen's licenses on file in 3 states: California, Florida and Pennsylvania.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
- Florida license
- Internal medicine, Pennsylvania
Clinical focus
Dmand AI lists age-related macular degeneration, cataract, cataract surgery with lens implant, conjunctivitis, dry eye, glaucoma, glaucoma surgery and retinal occlusion among the conditions Dr. Chen treats.
Ophthalmologists near Dr. Chen
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. Brian Hong Chen billed Medicare for 2,950 services in 2024
CMS data shows 2,950 Medicare services from Dr. Chen across 15 procedure codes in 2024, for 770 Medicare patients. Medicare paid $238,839 for them.
Dr. Chen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,9692024: 1,7889%
- Office and hospital visits
- 2023: 6742024: 6661%
- Imaging
- 2023: 3052024: 25317%
- Surgery
- 2023: 2142024: 24314%
Where Dr. Chen's Medicare services took place, 2024
- In an office2,78694%
- In a facility1646%
Dr. Chen compared with the California median for ophthalmologists, 2024
- Dr. Chen
- California median
- Medicare services
- 2,950vs 1,0792.7 times
- Medicare patients
- 770vs 42183% above
- Part D claims
- 9,533vs 61815.4 times
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Chen'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chen and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Brian Hong Chen treated 770 Medicare patients in 2024, average age 74
CMS counts 770 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 333 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 70% are also on Medicaid. Their average risk score is 1.73, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 71, with 55% women.
Dr. Chen's Medicare patients by age, 2024
Dr. Chen's Medicare patients by sex, 2024
- Women44257%
- Men32843%
Chronic conditions among Dr. Chen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes52%
- Arthritis45%
- Chronic kidney disease30%
- Ischemic heart disease28%
- Osteoporosis21%
- Depression19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Brian Hong Chen wrote 9,607 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 9,607 Medicare Part D claims for 1,486 patients. 62% of them were for generic drugs. CMS names the drug for 9,533 of them, across 30 drugs with 11 or more claims each, at $561,747 in total drug cost. In 2023, CMS named 7,757 claims across 28 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic6,000 claims62%
- Brand-name3,607 claims38%
Dr. Chen'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: 7,7572024: 9,53323%
Drugs named by CMS: 30 in 2024, 28 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. Brian Hong Chen scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Chen for performance year 2024, reported individually. Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 212 procedures of cataract surgery by Dr. Chen, more than 84% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Where Dr. Chen ranks in Medicare procedure volume
- Cataract surgery
- 84th percentile212 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Brian Hong Chen has 1 publication on record
Dmand AI links 1 paper to Dr. Chen. Dr. Chen's most frequent co-authors are Parul Khator, MD, Justin Rome, MD and George L. Spaeth, MD.
Dr. Chen's most frequent co-authors
Recent publications by Dr. Chen
See who Dr. Chen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chen works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Brian Hong Chen received $12,963 in industry payments from 2016 to 2025
CMS Open Payments shows 154 general payments to Dr. Chen from 19 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 68% of the total. Allergan Inc. paid the most, $5,457.
General payments to Dr. Chen by program year, 2016 to 2025
General payments to Dr. Chen by kind, 2016 to 2025
- Food and beverage$8,86668%
- Consulting fees$2,55020%
- Travel and lodging$1,45711%
- Gifts$901%
Companies that paid Dr. Chen 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. Brian Hong Chen graduated from Drexel University College Of Medicine
Dr. Chen graduated from Drexel University College Of Medicine in 2009.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Brian Hong Chen accepts plans from 19 insurance carriers
Dr. Chen is in network with 19 carriers, including Aetna, Blue Cross Blue Shield of Michigan and HCSC. HMO plans come from the most carriers, 13. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- HCSC
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- Elevance
- Humana
- LA Care
- +11 more carriersWith a free account
Plan types Dr. Chen accepts, by number of carriers
- HMO13
- PPO11
- Medicare10
- POS5
- EPO3
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Brian Hong Chen'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 DataDmand AI Org Hierarchy 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Brian Hong Chen
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. Brian Hong Chen's NPI number?
Dr. Brian Hong Chen's NPI number is 1952631632. It was assigned on January 2, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Brian Hong Chen?
Dr. Brian Hong Chen is an ophthalmologist in Lancaster, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Brian Hong Chen practice?
Dr. Chen practices at 44815 Fig Avenue, Suite 100, Lancaster, CA 93534. Dr. Chen's primary practice is Acuity Eye Group - Trinity Surgical Solutions in Lancaster, California. Dmand AI also links Dr. Chen to 2 group practices and clinics and 2 medical groups.
What is Dr. Brian Hong Chen's office phone number?
The practice phone on file for Dr. Chen is (626) 479-8383.
What is Dr. Brian Hong Chen's medical license number?
Dr. Chen's California license number on file is 127719, one of the licenses on file in 3 states.
Which states has Dr. Brian Hong Chen been licensed in?
Dmand AI has state licenses on file for Dr. Chen in California (2013 to 2025), Florida and Pennsylvania (2009 to 2013).
Does Dr. Brian Hong Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 2,950 services in 2024, and Dr. Chen accepts Medicare assignment.
What is Dr. Brian Hong Chen's MIPS score?
Dr. Chen's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
How many Medicare patients does Dr. Brian Hong Chen see?
CMS counts 770 Medicare patients who saw Dr. Chen in 2024, with an average age of 74.
Is Dr. Brian Hong Chen board certified?
Yes. Dr. Chen is board certified in ophthalmology by the American Board of Ophthalmology.
Show 8 more questionsShow fewer questions
What services does Dr. Brian Hong Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were eye exam or test (92014), office visit, established patient (99214) and eye exam or test (92133).
Where did Dr. Brian Hong Chen go to medical school?
Dr. Chen graduated from Drexel University College Of Medicine in 2009.
What drugs does Dr. Brian Hong Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Latanoprost, Brimonidine Tartrate and Prednisolone Acetate.
Has Dr. Brian Hong Chen received payments from drug or device companies?
CMS Open Payments shows $12,963 in general payments to Dr. Chen from 19 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. Brian Hong Chen been practicing?
Dr. Chen graduated from medical school in 2009, 17 years ago.
Does Dr. Brian Hong Chen do research?
Dmand AI links 1 publication to Dr. Chen.
Who does Dr. Brian Hong Chen publish with?
Dr. Chen's most frequent co-authors are Parul Khator, MD (1 shared paper), Justin Rome, MD (1 shared paper) and George L. Spaeth, MD (1 shared paper).
What insurance does Dr. Brian Hong Chen accept?
Dr. Chen is in network with 19 carriers, including Aetna, Blue Cross Blue Shield of Michigan and HCSC. HMO plans come from the most carriers, 13. Check the plan with the practice before a visit.
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