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Dr. Janet Chen, MD
NPI1366404469PAC ID0345238606
- Medicare services, 2024
- 2,392
- Medicare patients, 2024
- 690
- Part D claims, 2024
- 1,006
- Publications
- 4
- MIPS score, 2024
- 75
- Practice address
- 1304 Ella St Ste C, San Luis Obispo, CA 93401
- Practice phone
- Call (805) 544-7874
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
San Luis Obispo Surgery Center
Surgery Center - Medicare-Certified · San Luis Obispo, California
Find Dr. Chen's professional email, personal email and mobile number
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Dr. Janet Chen is an ophthalmologist in San Luis Obispo, California
Dr. Chen practices at San Luis Obispo Surgery Center in San Luis Obispo, California.
Dr. Chen's NPI, 1366404469, was assigned on April 4, 2006. Dr. Chen graduated from Vagelos College of Physicians and Surgeons in 1989. Dr. Chen holds California license G69459.
NPI and contact details
- NPI
- 1366404469NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345238606
- NPI enumeration date
- April 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 544-7874
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Janet Chen practices at San Luis Obispo Surgery Center in San Luis Obispo, California
Dr. Chen's primary practice is San Luis Obispo Surgery Center, at 1304 Ella St Ste C, San Luis Obispo, CA 93401. The practice phone is (805) 544-7874.
- San Luis Obispo Surgery Center1304 Ella St Ste C, San Luis Obispo, CA 93401Phone(805) 544-7874
Source: Dmand AI Affiliation Data
Dr. Janet Chen is affiliated with 2 sites of care and 1 medical group
Dr. Chen's primary practice is San Luis Obispo Surgery Center in San Luis Obispo, California. Dmand AI also links Dr. Chen to 1 group practice or clinic and 1 medical group, each named with a free account.
San Luis Obispo Surgery CenterPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Janet Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Luis Obispo Surgery 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. Janet 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. Dr. Chen is licensed in California.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
Clinical focus
Dmand AI lists age-related macular degeneration, cataract, cataract surgery with lens implant, conjunctivitis, eye infection or inflammation, eyelid inflammation, glaucoma and glaucoma surgery 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. Janet Chen billed Medicare for 2,392 services in 2024
CMS data shows 2,392 Medicare services from Dr. Chen across 15 procedure codes in 2024, for 690 Medicare patients. Medicare paid $166,337 for them.
Medicare services, 20242,392
Medicare patients690
Paid by Medicare$166,337
Procedure codes15
Dr. Chen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 2,0412024: 2,0732%
- Surgery
- 2023: 1012024: 12120%
- Office and hospital visits
- 2023: 802024: 868%
- Imaging
- 2023: 712024: 8418%
- Other services
- 2023: 02024: 28
Where Dr. Chen's Medicare services took place, 2024
- In an office2,29396%
- In a facility994%
Dr. Chen compared with the California median for ophthalmologists, 2024
- Dr. Chen
- California median
- Medicare services
- 2,392vs 1,0792.2 times
- Medicare patients
- 690vs 42164% above
- Part D claims
- 903vs 61846% above
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. Janet Chen treated 690 Medicare patients in 2024, average age 78
CMS counts 690 Medicare patients who saw Dr. Chen in 2024. The largest group is 75 to 84, with 305 patients. 73% of them have high cholesterol, and 68% have high blood pressure. 2% are also on Medicaid. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 77, with 59% women.
Medicare patients, 2024690
Average age78
Average risk score0.97
Also on Medicaid2%
Dr. Chen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chen's Medicare patients by sex, 2024
- Women41760%
- Men27340%
Chronic conditions among Dr. Chen's Medicare patients, 2024
- High cholesterol73%
- High blood pressure68%
- Arthritis44%
- Diabetes22%
- Chronic kidney disease21%
- Ischemic heart disease20%
- Osteoporosis18%
- Atrial fibrillation16%
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 77
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Janet Chen wrote 1,006 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 1,006 Medicare Part D claims for 201 patients. 62% of them were for generic drugs. CMS names the drug for 903 of them, across 19 drugs with 11 or more claims each, at $106,053 in total drug cost. In 2023, CMS named 800 claims across 17 drugs.
Part D claims, 20241,006
Drugs named by CMS19
Total drug cost$106,053
Part D patients201
Dr. Chen's Part D claims by kind of drug, 2024
- Generic620 claims62%
- Brand-name386 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: 8002024: 90313%
Drugs named by CMS: 19 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. Janet 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 as part of a group. Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 105 procedures of cataract surgery by Dr. Chen, more than 75% 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
- 75th percentile105 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. Janet Chen has 4 publications on record
Dmand AI links 4 papers to Dr. Chen in 2003. The most frequent topics are Glaucoma, Intercellular Junctions and Intraocular Pressure. Dr. Chen's most frequent co-authors are Andres Enrique Cortes, MD, Brian A. Francis, MD and Shan C. Lin, MD.
Papers4
Topics Dr. Chen writes about most
- Glaucoma
- Intercellular Junctions
- Intraocular Pressure
- Membrane Proteins
- Phosphoproteins
- Trabecular Meshwork
- Zonula Occludens-1 Protein
Dr. Chen's most frequent co-authors
- Andres Enrique Cortes, MD2 shared papers
- Brian A. Francis, MD1 shared paper
- Shan C. Lin, MD1 shared paper
Recent publications by Dr. Chen
Body FluidsCell LineDexamethasone
Am J Ophthalmol
Ciliary BodyEndoscopyGlaucoma
Ophthalmology
DrainageGlaucomaIn Vitro Techniques
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. Janet Chen received $806 in industry payments from 2016 to 2025
CMS Open Payments shows 11 general payments to Dr. Chen from 4 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 95% of the total. Alcon Laboratories Inc paid the most, $340.
General payments to Dr. Chen by program year, 2016 to 2025
General payments to Dr. Chen by kind, 2016 to 2025
$806in total
- Food and beverage$76895%
- Education$385%
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. Janet Chen has 3 awards and honors on record
Dmand AI lists 3 awards for Dr. Chen, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Chen
- 2013
- CMS Stage 1 EHR
- Undated
- AAO Fellow
- Fellow
Source: Dmand AI Professional Profile Data
Dr. Janet Chen graduated from Vagelos College of Physicians and Surgeons
Dr. Chen graduated from Vagelos College of Physicians and Surgeons in 1989. Dr. Chen is a member of AAO.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Janet Chen accepts plans from 14 insurance carriers
Dr. Chen is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +6 more carriersWith a free account
Plan types Dr. Chen accepts, by number of carriers
- PPO9
- Medicare7
- HMO6
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Janet 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Janet 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. Janet Chen's NPI number?
Dr. Janet Chen's NPI number is 1366404469. It was assigned on April 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Janet Chen?
Dr. Janet Chen is an ophthalmologist in San Luis Obispo, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Janet Chen practice?
Dr. Chen practices at 1304 Ella St Ste C, San Luis Obispo, CA 93401. Dr. Chen's primary practice is San Luis Obispo Surgery Center in San Luis Obispo, California. Dmand AI also links Dr. Chen to 1 group practice or clinic and 1 medical group.
What is Dr. Janet Chen's office phone number?
The practice phone on file for Dr. Chen is (805) 544-7874.
What is Dr. Janet Chen's medical license number?
Dr. Chen holds California license G69459.
Does Dr. Janet Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 2,392 services in 2024, and Dr. Chen accepts Medicare assignment.
What is Dr. Janet Chen's MIPS score?
Dr. Chen's MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.
How many Medicare patients does Dr. Janet Chen see?
CMS counts 690 Medicare patients who saw Dr. Chen in 2024, with an average age of 78.
Is Dr. Janet Chen board certified?
Yes. Dr. Chen is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. Janet Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were eye exam or test (92014), eye exam or test (92133) and eye exam or test (92134).
Show 7 more questionsShow fewer questions
Where did Dr. Janet Chen go to medical school?
Dr. Chen graduated from Vagelos College of Physicians and Surgeons in 1989.
What drugs does Dr. Janet Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Latanoprost, Dorzolamide-Timolol and Prednisolone Acetate.
Has Dr. Janet Chen received payments from drug or device companies?
CMS Open Payments shows $806 in general payments to Dr. Chen from 4 companies from 2016 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Janet Chen been practicing?
Dr. Chen graduated from medical school in 1989, 37 years ago.
Does Dr. Janet Chen do research?
Dmand AI links 4 publications to Dr. Chen.
Who does Dr. Janet Chen publish with?
Dr. Chen's most frequent co-authors are Andres Enrique Cortes, MD (2 shared papers), Brian A. Francis, MD (1 shared paper) and Shan C. Lin, MD (1 shared paper).
What insurance does Dr. Janet Chen accept?
Dr. Chen is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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