Dr. Lillian Yang, MD
- Medicare services, 2024
- 2,918
- Medicare patients, 2024
- 932
- Part D claims, 2024
- 1,632
- MIPS score, 2024
- 92
- Industry payments
- $945
- Practice address
- 3035 Cleveland Ave, Santa Rosa, CA 95403
- Practice phone
- Call (707) 545-3800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Eye Care Institute, a Medical Corporation
Santa Rosa, 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. Lillian Yang is an ophthalmologist in Santa Rosa, California
Dr. Yang practices at Eye Care Institute, a Medical Corporation in Santa Rosa, California.
Dr. Yang's NPI, 1871855411, was assigned on June 11, 2012. Dr. Yang graduated from University of Kansas School of Medicine - Kansas City in 2012. Dr. Yang's California license number on file is A143875.
- NPI
- 1871855411NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1951550466
- NPI enumeration date
- June 11, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (707) 545-3800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lillian Yang practices at Eye Care Institute, a Medical Corporation in Santa Rosa, California
Dr. Yang's primary practice is Eye Care Institute, a Medical Corporation, at 3035 Cleveland Ave, Santa Rosa, CA 95403 in Sonoma County. The practice phone is (707) 545-3800.
- Eye Care Institute, a Medical Corporation3035 Cleveland Ave, Santa Rosa, CA 95403 · Sonoma CountyPhone(707) 545-3800
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Lillian Yang is affiliated with 2 sites of care and 2 medical groups
Dr. Yang's primary practice is Eye Care Institute, a Medical Corporation in Santa Rosa, 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 and 1 medical group, each 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. Lillian 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 |
|---|---|
| Eye Care Institute, a Medical Corporation | 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. Lillian 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 3 states: California, Kansas and Missouri.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
- Kansas license
- Missouri license
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. Yang treats.
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. Lillian Yang billed Medicare for 2,918 services in 2024
CMS data shows 2,918 Medicare services from Dr. Yang across 18 procedure codes in 2024, for 932 Medicare patients. Medicare paid $307,733 for them.
Dr. Yang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2,1752024: 1,96510%
- Office and hospital visits
- 2023: 4472024: 52417%
- Surgery
- 2023: 4802024: 35027%
- Other services
- 2023: 02024: 79
Where Dr. Yang's Medicare services took place, 2024
- In an office2,61490%
- In a facility30410%
Dr. Yang compared with the California median for ophthalmologists, 2024
- Dr. Yang
- California median
- Medicare services
- 2,918vs 1,0792.7 times
- Medicare patients
- 932vs 4212.2 times
- Part D claims
- 1,553vs 6182.5 times
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Yang'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. 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. Lillian Yang treated 932 Medicare patients in 2024, average age 76
CMS counts 932 Medicare patients who saw Dr. Yang in 2024. The largest group is 75 to 84, with 415 patients. 71% of them have high cholesterol, and 65% have high blood pressure. 19% are also on Medicaid. Their average risk score is 1.07, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Yang's median patient age at 74, with 61% women.
Dr. Yang's Medicare patients by age, 2024
Dr. Yang's Medicare patients by sex, 2024
- Women59264%
- Men34036%
Chronic conditions among Dr. Yang's Medicare patients, 2024
- High cholesterol71%
- High blood pressure65%
- Arthritis40%
- Ischemic heart disease24%
- Diabetes22%
- Mood disorders20%
- Anxiety19%
- Atrial fibrillation18%
Share of Medicare patients with each condition. A patient can have several.
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 74
Patient panel by sex, all payers
- Women61%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lillian Yang wrote 1,632 Medicare Part D claims in 2024
In 2024, Dr. Yang wrote 1,632 Medicare Part D claims for 498 patients. 45% of them were for generic drugs. CMS names the drug for 1,553 of them, across 21 drugs with 11 or more claims each, at $253,349 in total drug cost. In 2023, CMS named 1,438 claims across 17 drugs.
Dr. Yang's Part D claims by kind of drug, 2024
- Generic741 claims45%
- Brand-name891 claims55%
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.
Drug classes CMS tracks in Dr. Yang's Part D claims, 2024
- Antibiotics2%27 of 1,632 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,4382024: 1,5538%
Drugs named by CMS: 21 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. Lillian Yang scored 92 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. Yang for performance year 2024, reported as part of a group. Dr. Yang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 388 procedures of cataract surgery by Dr. Yang, more than 93% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Yang's MIPS scores, performance year 2024
- 92of 100Final score
- 95.7of 100Quality
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Yang ranks in Medicare procedure volume
- Cataract surgery
- 93rd percentile388 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. Lillian Yang received $945 in industry payments from 2019 to 2025
CMS Open Payments shows 35 general payments to Dr. Yang from 12 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $496.
General payments to Dr. Yang by program year, 2019 to 2025
Companies that paid Dr. Yang the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lillian Yang graduated from University of Kansas School of Medicine - Kansas City
Dr. Yang graduated from University of Kansas School of Medicine - Kansas City in 2012.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Lillian Yang accepts plans from 16 insurance carriers
Dr. Yang is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Alliant Health Plans
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- +8 more carriersWith a free account
Plan types Dr. Yang accepts, by number of carriers
- PPO10
- Medicare7
- HMO6
- POS6
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. Lillian 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)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) |
| 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. Lillian 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. Lillian Yang's NPI number?
Dr. Lillian Yang's NPI number is 1871855411. It was assigned on June 11, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Lillian Yang?
Dr. Lillian Yang is an ophthalmologist in Santa Rosa, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Lillian Yang practice?
Dr. Yang practices at 3035 Cleveland Ave, Santa Rosa, CA 95403. Dr. Yang's primary practice is Eye Care Institute, a Medical Corporation in Santa Rosa, California. Dmand AI also links Dr. Yang to 1 group practice or clinic and 1 medical group.
What is Dr. Lillian Yang's office phone number?
The practice phone on file for Dr. Yang is (707) 545-3800.
What is Dr. Lillian Yang's medical license number?
Dr. Yang's California license number on file is A143875, one of the licenses on file in 3 states.
Which states has Dr. Lillian Yang been licensed in?
Dmand AI has state licenses on file for Dr. Yang in California (2016 to 2025), Kansas and Missouri (2013 to 2017).
What medical group is Dr. Lillian Yang part of?
Dr. Yang is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. Yang to 1 more medical group.
Does Dr. Lillian Yang accept Medicare?
Yes. CMS data shows Dr. Yang billed Medicare for 2,918 services in 2024, and Dr. Yang accepts Medicare assignment.
What is Dr. Lillian Yang's MIPS score?
Dr. Yang's MIPS final score for performance year 2024 is 92 out of 100, reported as part of a group.
How many Medicare patients does Dr. Lillian Yang see?
CMS counts 932 Medicare patients who saw Dr. Yang in 2024, with an average age of 76.
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Is Dr. Lillian Yang board certified?
Yes. Dr. Yang is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. Lillian Yang bill to Medicare?
In 2024, Dr. Yang's most billed Medicare services were eye exam or test (92014), eye exam or test (92012) and office visit, established patient (99214).
Where did Dr. Lillian Yang go to medical school?
Dr. Yang graduated from University of Kansas School of Medicine - Kansas City in 2012.
What drugs does Dr. Lillian Yang prescribe most?
In 2024 Medicare Part D data, Dr. Yang's most prescribed drugs by claims were Latanoprost, Prednisolone Acetate and Dorzolamide-Timolol.
Has Dr. Lillian Yang received payments from drug or device companies?
CMS Open Payments shows $945 in general payments to Dr. Yang from 12 companies from 2019 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Lillian Yang been practicing?
Dr. Yang graduated from medical school in 2012, 14 years ago.
What insurance does Dr. Lillian Yang accept?
Dr. Yang is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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