Dr. Samuel Yiu, MD
- Medicare services, 2024
- 1,459
- Medicare patients, 2024
- 618
- Part D claims, 2024
- 399
- MIPS score, 2024
- 83
- Hospital affiliations
- 2
- Practice address
- 4940 Eastern Avenue, Baltimore, MD 21224
- Practice phone
- Call (410) 550-0123
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Yiu'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. Samuel Yiu is an ophthalmologist in Baltimore, Maryland
Dr. Yiu practices at Johns Hopkins Bayview Medical Center in Baltimore, Maryland, part of Johns Hopkins Health System.
Dr. Yiu's NPI, 1043377286, was assigned on January 3, 2007. Dr. Yiu holds Maryland license D73528.
- NPI
- 1043377286NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163469826
- NPI enumeration date
- January 3, 2007
- NPI status
- Active
- Practice phone
- (410) 550-0123
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Samuel Yiu practices at Johns Hopkins Bayview Medical Center in Baltimore, Maryland
Dr. Yiu's primary practice is Johns Hopkins Bayview Medical Center, at 4940 Eastern Avenue, Baltimore, MD 21224 in Baltimore City. The practice phone is (410) 550-0123.
- Johns Hopkins Bayview Medical Center4940 Eastern Avenue, Baltimore, MD 21224 · Baltimore CityPhone(410) 550-0123
Source: Dmand AI Affiliation Data
Dr. Samuel Yiu is affiliated with 2 sites of care and 2 medical groups
Dr. Yiu's primary practice is Johns Hopkins Bayview Medical Center in Baltimore, Maryland, part of Johns Hopkins Health System. Dr. Yiu is also affiliated with The Johns Hopkins Hospital. The medical group on file is Johns Hopkins University. Dmand AI also links Dr. Yiu to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Samuel Yiu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yiu practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Johns Hopkins Bayview Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Samuel Yiu is one of 471 ophthalmologists in Maryland
Ophthalmology is Dr. Yiu's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dmand AI has Dr. Yiu's licenses on file in 2 states: Maryland and California.
Specialties and state licenses
- Ophthalmology, MarylandPrimary
- California license
Ophthalmologists near Dr. Yiu
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. Samuel Yiu billed Medicare for 1,459 services in 2024
CMS data shows 1,459 Medicare services from Dr. Yiu across 12 procedure codes in 2024, for 618 Medicare patients. Medicare paid $158,719 for them.
Dr. Yiu's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 5732024: 76033%
- Office and hospital visits
- 2023: 4312024: 431No change
- Surgery
- 2023: 1502024: 22147%
- Lab and pathology
- 2023: 572024: 4718%
Where Dr. Yiu's Medicare services took place, 2024
- In an office48533%
- In a facility97467%
Dr. Yiu compared with the Maryland median for ophthalmologists, 2024
- Dr. Yiu
- Maryland median
- Medicare services
- 1,459vs 1,3885% above
- Medicare patients
- 618vs 623Close to median
- Part D claims
- 363vs 380Close to median
Medians across 487 ophthalmologists in Maryland with Dmand AI profiles that report each measure.
Dr. Yiu'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. Yiu and other ophthalmologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Samuel Yiu treated 618 Medicare patients in 2024, average age 74
CMS counts 618 Medicare patients who saw Dr. Yiu in 2024. The largest group is 65 to 74, with 260 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 1.43, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Yiu's median patient age at 74, with 63% women.
Dr. Yiu's Medicare patients by age, 2024
Dr. Yiu's Medicare patients by sex, 2024
- Women37661%
- Men24239%
Chronic conditions among Dr. Yiu's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Diabetes42%
- Mood disorders30%
- Ischemic heart disease29%
- Chronic kidney disease27%
- Depression27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Yiu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Samuel Yiu wrote 399 Medicare Part D claims in 2024
In 2024, Dr. Yiu wrote 399 Medicare Part D claims for 135 patients. 36% of them were for generic drugs. CMS names the drug for 363 of them, across 12 drugs with 11 or more claims each, at $78,780 in total drug cost. In 2023, CMS named 365 claims across 10 drugs.
Dr. Yiu's Part D claims by kind of drug, 2024
- Generic144 claims36%
- Brand-name255 claims64%
Dr. Yiu'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: 3652024: 3631%
Drugs named by CMS: 12 in 2024, 10 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. Samuel Yiu scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Yiu for performance year 2024, reported as part of a group. CMS counts 242 procedures of cataract surgery by Dr. Yiu, more than 86% of the clinicians it reports for that procedure.
Dr. Yiu's MIPS scores, performance year 2024
- 83of 100Final score
- 73.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Yiu ranks in Medicare procedure volume
- Cataract surgery
- 86th percentile242 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: 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. Samuel Yiu received $8,011 in industry payments from 2016 to 2019
CMS Open Payments shows 12 general payments to Dr. Yiu from 6 drug and device companies from 2016 to 2019. Consulting fees make up the largest share, 82% of the total. Novartis Pharmaceuticals Corporation paid the most, $6,992.
General payments to Dr. Yiu by program year, 2016 to 2019
General payments to Dr. Yiu by kind, 2016 to 2019
- Consulting fees$6,60082%
- Food and beverage$6989%
- Gifts$3905%
- Travel and lodging$2864%
- Education$380%
Companies that paid Dr. Yiu the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Samuel Yiu'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 | Clinician Public Reporting: Overall MIPS Performance (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) |
| 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. Samuel Yiu
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. Samuel Yiu's NPI number?
Dr. Samuel Yiu's NPI number is 1043377286. It was assigned on January 3, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Samuel Yiu?
Dr. Samuel Yiu is an ophthalmologist in Baltimore, Maryland. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Samuel Yiu practice?
Dr. Yiu practices at 4940 Eastern Avenue, Baltimore, MD 21224. Dr. Yiu's primary practice is Johns Hopkins Bayview Medical Center in Baltimore, Maryland, part of Johns Hopkins Health System. Dmand AI also links Dr. Yiu to 1 medical group.
What is Dr. Samuel Yiu's office phone number?
The practice phone on file for Dr. Yiu is (410) 550-0123.
What is Dr. Samuel Yiu's medical license number?
Dr. Yiu holds Maryland license D73528, one of the licenses on file in 2 states.
Which states has Dr. Samuel Yiu been licensed in?
Dmand AI has state licenses on file for Dr. Yiu in Maryland and California.
Which hospitals is Dr. Samuel Yiu affiliated with?
Dr. Yiu practices at Johns Hopkins Bayview Medical Center in Baltimore, Maryland. Dr. Yiu is also affiliated with The Johns Hopkins Hospital.
What medical group is Dr. Samuel Yiu part of?
Dr. Yiu is linked to Johns Hopkins University. Dmand AI links Dr. Yiu to 1 more medical group.
Does Dr. Samuel Yiu accept Medicare?
Yes. CMS data shows Dr. Yiu billed Medicare for 1,459 services in 2024.
What is Dr. Samuel Yiu's MIPS score?
Dr. Yiu's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
Show 5 more questionsShow fewer questions
How many Medicare patients does Dr. Samuel Yiu see?
CMS counts 618 Medicare patients who saw Dr. Yiu in 2024, with an average age of 74.
What services does Dr. Samuel Yiu bill to Medicare?
In 2024, Dr. Yiu's most billed Medicare services were office visit, established patient (99213), eye exam or test (92136) and eye exam or test (92014).
What drugs does Dr. Samuel Yiu prescribe most?
In 2024 Medicare Part D data, Dr. Yiu's most prescribed drugs by claims were Prednisolone Acetate, Restasis and Ketorolac Tromethamine.
Has Dr. Samuel Yiu received payments from drug or device companies?
CMS Open Payments shows $8,011 in general payments to Dr. Yiu from 6 companies from 2016 to 2019. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Samuel Yiu been practicing?
Dr. Yiu graduated from medical school in 1994, 32 years ago.
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