Dr. Yi-Ren Chen, MD, MPH
- Medicare services, 2024
- 557
- Medicare patients, 2024
- 238
- Part D claims, 2024
- 45
- Publications
- 31
- MIPS score, 2024
- 100
- Practice address
- 6501 Coyle Ave, Carmichael, CA 95608
- Practice phone
- Call (916) 537-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Chen'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. Yi-Ren Chen is a neurosurgeon in Carmichael, California
Dr. Chen practices at Dignity Health - Mercy San Juan Medical Center in Carmichael, California, part of CommonSpirit Health.
Dr. Chen's NPI, 1114284478, was assigned on April 11, 2012. Dr. Chen graduated from Stanford University School Of Medicine in 2011. Dr. Chen holds California license A126433.
- NPI
- 1114284478NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3375871049
- NPI enumeration date
- April 11, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (916) 537-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Yi-Ren Chen practices at Dignity Health - Mercy San Juan Medical Center in Carmichael, California
Dr. Chen's primary practice is Dignity Health - Mercy San Juan Medical Center, at 6501 Coyle Ave, Carmichael, CA 95608 in Sacramento County. The practice phone is (916) 537-5000.
- Dignity Health - Mercy San Juan Medical Center6501 Coyle Ave, Carmichael, CA 95608 · Sacramento CountyPhone(916) 537-5000
Source: Dmand AI Affiliation Data
Dr. Yi-Ren Chen is affiliated with 4 sites of care and 1 medical group
Dr. Chen's primary practice is Dignity Health - Mercy San Juan Medical Center in Carmichael, California, part of CommonSpirit Health. Dr. Chen is also affiliated with Dignity Health - Sierra Nevada Memorial Hospital. The medical group on file is Mercy Medical Group. Dmand AI also links Dr. Chen to 1 more group practice or clinic and 1 home health agency, 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. Yi-Ren Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Mercy San Juan Medical Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Yi-Ren Chen is one of 846 neurosurgeons in California
Neurological surgery is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Chen is board certified in neurological surgery by the American Board of Neurological Surgery. Dr. Chen is licensed in California.
Specialties and state licenses
- Neurological surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists back and neck pain treatment without fusion, craniotomy, lower back pain, muscle pain, fibromyalgia, and limb pain, neck pain and spine problems and spinal fusion among the conditions Dr. Chen treats.
Neurosurgeons near Dr. Chen
Counts of neurosurgeons 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. Yi-Ren Chen billed Medicare for 557 services in 2024
CMS data shows 557 Medicare services from Dr. Chen across 19 procedure codes in 2024, for 238 Medicare patients. Medicare paid $202,494 for them.
Dr. Chen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 1262024: 325158%
- Office and hospital visits
- 2023: 1962024: 23218%
Where Dr. Chen's Medicare services took place, 2024
- In an office17131%
- In a facility38669%
Dr. Chen compared with the California median for neurosurgeons, 2024
- Dr. Chen
- California median
- Medicare services
- 557vs 2162.6 times
- Medicare patients
- 238vs 15455% above
- Part D claims
- 26vs 26Close to median
Medians across 679 neurosurgeons 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.
Need commercial claims for Dr. Chen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chen and other neurosurgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Yi-Ren Chen treated 238 Medicare patients in 2024, average age 75
CMS counts 238 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 102 patients. 75% of them have arthritis, and 75% have high blood pressure. 26% are also on Medicaid. Their average risk score is 1.39, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 65, with 53% women.
Dr. Chen's Medicare patients by age, 2024
Dr. Chen's Medicare patients by sex, 2024
- Women13055%
- Men10845%
Chronic conditions among Dr. Chen's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Diabetes37%
- Ischemic heart disease35%
- Mood disorders31%
- Anxiety30%
- Chronic kidney disease29%
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 65
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Yi-Ren Chen wrote 45 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 45 Medicare Part D claims for 32 patients. 100% of them were for generic drugs. CMS names the drug for 26 of them, across 1 drug with 11 or more claims each, at $289 in total drug cost. In 2023, CMS named 30 claims across 1 drug.
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.
Drug classes CMS tracks in Dr. Chen's Part D claims, 2024
- Opioids64%29 of 45 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: 302024: 2613%
Drugs named by CMS: 1 in 2024, 1 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. Yi-Ren Chen scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Chen for performance year 2024, reported through an alternative payment model (APM). Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chen as offering telehealth. CMS counts 269 procedures of spinal fusion by Dr. Chen, more than 94% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Chen's MIPS scores, performance year 2024
- 100of 100Final score
- 86.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Chen ranks in Medicare procedure volume
- Spinal fusion
- 94th percentile269 procedures
- Laminectomy or laminotomy (partial removal of spine bones)
- 92nd percentile91 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. Yi-Ren Chen has 31 publications on record
Dmand AI links 31 papers to Dr. Chen, published from 2008 to 2025. 2016 was the busiest year, with 4. The most frequent topics are Magnetic Resonance Imaging, Postoperative Complications and Spinal Fusion. Dr. Chen has published most often in Cureus. Dr. Chen's most frequent co-authors are Anand Veeravagu, MD, Maxwell Boakye, MD and Doris Chen.
Dr. Chen's papers by year, 2008 to 2025
Topics Dr. Chen writes about most
- Magnetic Resonance Imaging
- Postoperative Complications
- Spinal Fusion
- Cervical Vertebrae
- Tomography, X-Ray Computed
- Brain Neoplasms
- Comorbidity
- Decision Support Systems, Clinical
Dr. Chen's most frequent co-authors
Recent publications by Dr. Chen
World Neurosurg
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 neurosurgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Yi-Ren Chen received $114,950 in industry payments from 2016 to 2025
CMS Open Payments shows 177 general payments to Dr. Chen from 17 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 75% of the total. Orthofix Medical, Inc. paid the most, $35,807.
General payments to Dr. Chen by program year, 2016 to 2025
General payments to Dr. Chen by kind, 2016 to 2025
- Consulting fees$85,81275%
- Travel and lodging$16,62314%
- Royalties and licenses$4,6154%
- Food and beverage$4,0003%
- Other$3,9003%
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. Yi-Ren Chen graduated from Stanford University School Of Medicine
Dr. Chen graduated from Stanford University School Of Medicine in 2011. Dr. Chen is a member of AANS, CNS and San Francisco Neurological Society.
- Medical school
- Board certified in neurological surgery
Source: Dmand AI Professional Profile Data
Dr. Yi-Ren Chen accepts plans from 14 insurance carriers
Dr. Chen is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Humana
- Regence Health Plans
- +6 more carriersWith a free account
Plan types Dr. Chen accepts, by number of carriers
- PPO10
- Medicare9
- HMO6
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Yi-Ren 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. Yi-Ren 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. Yi-Ren Chen's NPI number?
Dr. Yi-Ren Chen's NPI number is 1114284478. It was assigned on April 11, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Yi-Ren Chen?
Dr. Yi-Ren Chen is a neurosurgeon in Carmichael, California. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. Yi-Ren Chen practice?
Dr. Chen practices at 6501 Coyle Ave, Carmichael, CA 95608. Dr. Chen's primary practice is Dignity Health - Mercy San Juan Medical Center in Carmichael, California, part of CommonSpirit Health. Dmand AI also links Dr. Chen to 1 group practice or clinic and 1 home health agency.
What is Dr. Yi-Ren Chen's office phone number?
The practice phone on file for Dr. Chen is (916) 537-5000.
What is Dr. Yi-Ren Chen's medical license number?
Dr. Chen holds California license A126433.
Which hospitals is Dr. Yi-Ren Chen affiliated with?
Dr. Chen practices at Dignity Health - Mercy San Juan Medical Center in Carmichael, California. Dr. Chen is also affiliated with Dignity Health - Sierra Nevada Memorial Hospital.
What medical group is Dr. Yi-Ren Chen part of?
Dr. Chen is linked to Mercy Medical Group.
Does Dr. Yi-Ren Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 557 services in 2024, and Dr. Chen accepts Medicare assignment.
Does Dr. Yi-Ren Chen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chen as offering telehealth services.
What is Dr. Yi-Ren Chen's MIPS score?
Dr. Chen's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Yi-Ren Chen see?
CMS counts 238 Medicare patients who saw Dr. Chen in 2024, with an average age of 75.
Is Dr. Yi-Ren Chen board certified?
Yes. Dr. Chen is board certified in neurological surgery by the American Board of Neurological Surgery.
What services does Dr. Yi-Ren Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were surgery: bones and joints (22614), office visit, new patient (99205) and office visit, established patient (99215).
Where did Dr. Yi-Ren Chen go to medical school?
Dr. Chen graduated from Stanford University School Of Medicine in 2011.
What drugs does Dr. Yi-Ren Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Yi-Ren Chen received payments from drug or device companies?
CMS Open Payments shows $114,950 in general payments to Dr. Chen from 17 companies from 2016 to 2025. The largest total came from Orthofix Medical, Inc.
How long has Dr. Yi-Ren Chen been practicing?
Dr. Chen graduated from medical school in 2011, 15 years ago.
Does Dr. Yi-Ren Chen do research?
Dmand AI links 31 publications to Dr. Chen, published from 2008 to 2025.
Who does Dr. Yi-Ren Chen publish with?
Dr. Chen's most frequent co-authors are Anand Veeravagu, MD (5 shared papers), Maxwell Boakye, MD (4 shared papers) and Doris Chen (3 shared papers).
What insurance does Dr. Yi-Ren Chen accept?
Dr. Chen is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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