Dr. Sam S. Yang, MD
- Medicare services, 2021
- 22
- Medicare patients, 2024
- 11
- Part D claims, 2024
- 553
- Publications
- 9
- Industry payments
- $812
- Practice address
- 901 Nevin Ave, Richmond, CA 94801
- Practice phone
- Call (510) 307-1555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Richmond Medical Center
Richmond, California
Find Dr. Yang'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. Sam S. Yang is an ophthalmologist in Richmond, California
Dr. Yang practices at Richmond Medical Center in Richmond, California.
Dr. Yang's NPI, 1811049034, was assigned on January 17, 2007. Dr. Yang graduated from Wake Forest School of Medicine of Wake Forest Baptist Medical Center in 1999. Dr. Yang holds California license A75699.
- NPI
- 1811049034NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3971529124
- NPI enumeration date
- January 17, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 307-1555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sam S. Yang practices at Richmond Medical Center in Richmond, California
Dr. Yang's primary practice is Richmond Medical Center, at 901 Nevin Ave, Richmond, CA 94801 in Contra Costa County. The practice phone is (510) 307-1555.
- Richmond Medical Center901 Nevin Ave, Richmond, CA 94801 · Contra Costa CountyPhone(510) 307-1555
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Sam S. Yang is affiliated with 2 sites of care and 1 medical group
Dr. Yang's primary practice is Richmond Medical Center in Richmond, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Yang to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Sam S. Yang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yang practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Richmond Medical Center | 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. Sam S. Yang is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Yang's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Yang is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Yang's licenses on file in 2 states: California and Hawaii.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
- Hawaii license
Ophthalmologists near Dr. Yang
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. Sam S. Yang billed Medicare for 22 services in 2021
CMS data shows 22 Medicare services from Dr. Yang across 1 procedure code in 2021, for 11 Medicare patients. Medicare paid $1,503 for them. Every service was in an office.
Dr. Yang's Medicare services by type, 2019 to 2021
- 2019
- 2021
- Tests and treatments
- 2019: 202021: 2210%
Dr. Yang compared with the California median for ophthalmologists, 2021
- Dr. Yang
- California median
- Medicare services
- 22vs 1,07998% below
- Medicare patients
- 11vs 42197% below
- Part D claims
- 518vs 61816% below
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Yang's most billed Medicare procedure codes, 2021
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. Yang?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Yang and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sam S. Yang treated 11 Medicare patients in 2024, average age 77
CMS counts 11 Medicare patients who saw Dr. Yang in 2024. The largest group is under 65, with 0 patients. Their average risk score is 1.78, 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. Yang's median patient age at 69, with 56% women.
Dr. Yang's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Yang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sam S. Yang wrote 553 Medicare Part D claims in 2024
In 2024, Dr. Yang wrote 553 Medicare Part D claims for 122 patients. 66% of them were for generic drugs. CMS names the drug for 518 of them, across 8 drugs with 11 or more claims each, at $15,256 in total drug cost. In 2023, CMS named 474 claims across 8 drugs.
Dr. Yang's Part D claims by kind of drug, 2024
- Generic363 claims66%
- Brand-name190 claims34%
Dr. Yang'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: 4742024: 5189%
Drugs named by CMS: 8 in 2024, 8 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
How Dr. Sam S. Yang takes part in Medicare
Dr. Yang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Sam S. Yang has 9 publications on record
Dmand AI links 9 papers to Dr. Yang in 2020. 2020 was the busiest year, with 2. The most frequent topics are Glucocorticoids, Injections and Retinal Vein Occlusion. Dr. Yang has published most often in Retina. Dr. Yang's most frequent co-authors are Robert N. Johnson, MD, Everett Ai, MD and Amar P. Patel, MD.
Topics Dr. Yang writes about most
- Glucocorticoids
- Injections
- Retinal Vein Occlusion
- Vision Disorders
- Visual Acuity
Dr. Yang's most frequent co-authors
Recent publications by Dr. Yang
See who Dr. Yang researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Yang 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. Sam S. Yang received $812 in industry payments from 2018 to 2025
CMS Open Payments shows 8 general payments to Dr. Yang from 5 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Genentech, Inc. paid the most, $355.
General payments to Dr. Yang by program year, 2018 to 2025
Companies that paid Dr. Yang the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Sam S. Yang graduated from Wake Forest School of Medicine of Wake Forest Baptist Medical Center
Dr. Yang graduated from Wake Forest School of Medicine of Wake Forest Baptist Medical Center in 1999.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Sam S. Yang accepts plans from 2 insurance carriers
Dr. Yang is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Yang accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Sam S. Yang'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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. Sam S. Yang
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. Sam S. Yang's NPI number?
Dr. Sam S. Yang's NPI number is 1811049034. It was assigned on January 17, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Sam S. Yang?
Dr. Sam S. Yang is an ophthalmologist in Richmond, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Sam S. Yang practice?
Dr. Yang practices at 901 Nevin Ave, Richmond, CA 94801. Dr. Yang's primary practice is Richmond Medical Center in Richmond, California. Dmand AI also links Dr. Yang to 1 group practice or clinic.
What is Dr. Sam S. Yang's office phone number?
The practice phone on file for Dr. Yang is (510) 307-1555.
What is Dr. Sam S. Yang's medical license number?
Dr. Yang holds California license A75699, one of the licenses on file in 2 states.
Which states has Dr. Sam S. Yang been licensed in?
Dmand AI has state licenses on file for Dr. Yang in California (2001 to 2027) and Hawaii (1999 to 2000).
What medical group is Dr. Sam S. Yang part of?
Dr. Yang is linked to The Permanente Medical Group, Inc.
Does Dr. Sam S. Yang accept Medicare?
Yes. CMS data shows Dr. Yang billed Medicare for 22 services in 2021, and Dr. Yang accepts Medicare assignment.
How many Medicare patients does Dr. Sam S. Yang see?
CMS counts 11 Medicare patients who saw Dr. Yang in 2024, with an average age of 77.
Is Dr. Sam S. Yang board certified?
Yes. Dr. Yang is board certified in ophthalmology by the American Board of Ophthalmology.
Show 8 more questionsShow fewer questions
What services does Dr. Sam S. Yang bill to Medicare?
In 2021, Dr. Yang's most billed Medicare services were eye exam or test (92012).
Where did Dr. Sam S. Yang go to medical school?
Dr. Yang graduated from Wake Forest School of Medicine of Wake Forest Baptist Medical Center in 1999.
What drugs does Dr. Sam S. Yang prescribe most?
In 2024 Medicare Part D data, Dr. Yang's most prescribed drugs by claims were Prednisolone Acetate, Timolol Maleate and Atropine Sulfate.
Has Dr. Sam S. Yang received payments from drug or device companies?
CMS Open Payments shows $812 in general payments to Dr. Yang from 5 companies from 2018 to 2025. The largest total came from Genentech, Inc.
How long has Dr. Sam S. Yang been practicing?
Dr. Yang graduated from medical school in 1999, 27 years ago.
Does Dr. Sam S. Yang do research?
Dmand AI links 9 publications to Dr. Yang.
Who does Dr. Sam S. Yang publish with?
Dr. Yang's most frequent co-authors are Robert N. Johnson, MD (3 shared papers), Everett Ai, MD (2 shared papers) and Amar P. Patel, MD (2 shared papers).
What insurance does Dr. Sam S. Yang accept?
Dr. Yang is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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