Dr. Yi-Ren Chen, MD, MPH

  • Carmichael, CA
  • Neurosurgeon
NPI1114284478PAC ID3375871049
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
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Personal email
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Mobile number
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Social profiles

Primary practice

Dignity Health - Mercy San Juan Medical Center

Hospital · Carmichael, California

See all 5 affiliations

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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 and contact details
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
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Mobile number
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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.

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.

See all 5 affiliations for Dr. Chen

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.

EHR by site
SiteEHR vendor and product
Dignity Health - Mercy San Juan Medical CenterAvailable with a free account
+3 more affiliated sitesAvailable 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, CaliforniaPrimaryLicense A126433 · 2013 to 2027 · taxonomy 207T00000X

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.

Medicare services, 2024557
Medicare patients238
Paid by Medicare$202,494
Procedure codes19

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.

See all procedures by Dr. Chen

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.

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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.

Medicare patients, 2024238
Average age75
Average risk score1.39
Also on Medicaid26%

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

  1. Arthritis75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Diabetes37%
  5. Ischemic heart disease35%
  6. Mood disorders31%
  7. Anxiety30%
  8. 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.

Part D claims, 202445
Drugs named by CMS1
Total drug cost$289
Part D patients32

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.

See all prescribing by Dr. Chen

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)

For MedTech and pharma teams

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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.

Papers31
Years published2008 to 2025

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

See all 31 publications and co-authors

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.

How network discovery works

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

$114.9Kin total
  • 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.

See all payments to Dr. Chen

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.

  1. Medical schoolStanford University School Of Medicine
  2. Board certified in neurological surgeryAmerican Board of 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

  1. PPO10
  2. Medicare9
  3. HMO6
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Yi-Ren Chen's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand 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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