Dr. Benjamin Yim, MD

  • Walnut Creek, CA
  • Neurosurgeon
NPI1598176604PAC ID8426388232
Medicare services, 2024
875
Medicare patients, 2024
277
Part D claims, 2024
95
Publications
16
MIPS score, 2024
84
Practice address
1601 Ygnacio Valley Rd, Walnut Creek, CA 94598
Practice phone
Call (925) 939-3000
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

John Muir Medical Center, Walnut Creek

Hospital · Walnut Creek, California

See all 12 affiliations

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Dr. Benjamin Yim is a neurosurgeon in Walnut Creek, California

Dr. Yim practices at John Muir Medical Center, Walnut Creek in Walnut Creek, California, part of John Muir Health.

Dr. Yim's NPI, 1598176604, was assigned on May 12, 2014. Dr. Yim graduated from Albany Medical College in 2014. Dr. Yim holds California license A143498.

NPI and contact details
Medicare PAC ID
8426388232
NPI enumeration date
May 12, 2014
NPI status
Active
Offers telehealth
Yes
Practice phone
(925) 939-3000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
38
Medical school graduation
2014

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Benjamin Yim practices at John Muir Medical Center, Walnut Creek in Walnut Creek, California

Dr. Yim's primary practice is John Muir Medical Center, Walnut Creek, at 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598 in Contra Costa County. The practice phone is (925) 939-3000.

Source: Dmand AI Affiliation Data

Dr. Benjamin Yim is affiliated with 6 sites of care and 6 medical groups

Dr. Yim's primary practice is John Muir Medical Center, Walnut Creek in Walnut Creek, California, part of John Muir Health. Dr. Yim is also affiliated with Concord Medical Center. The medical group on file is John Muir Health. Dmand AI also links Dr. Yim to 1 more hospital, 5 medical groups and 3 group practices and clinics, each named with a free account.

See all 12 affiliations for Dr. Yim

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Benjamin Yim's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yim practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
John Muir Medical Center, Walnut CreekAvailable with a free account
+5 more sites and 5 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Benjamin Yim is one of 846 neurosurgeons in California

Neurological surgery is Dr. Yim's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dmand AI has Dr. Yim's licenses on file in 2 states: California and New York.

Specialties and state licenses

  • Neurological surgery, CaliforniaPrimaryLicense A143498 · 2016 to 2026 · taxonomy 207T00000X
  • New York license2019 to 2021

Clinical focus

Dmand AI lists back and neck pain treatment without fusion, craniotomy, lower back pain, neck pain and spine problems and spinal fusion among the conditions Dr. Yim treats.

Neurosurgeons near Dr. Yim

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. Benjamin Yim billed Medicare for 875 services in 2024

CMS data shows 875 Medicare services from Dr. Yim across 18 procedure codes in 2024, for 277 Medicare patients. Medicare paid $130,516 for them.

Medicare services, 2024875
Medicare patients277
Paid by Medicare$130,516
Procedure codes18

Dr. Yim's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2522024: 31826%
Imaging
2023: 1602024: 28578%
Surgery
2023: 1892024: 22921%
Tests and treatments
2023: 442024: 432%

Where Dr. Yim's Medicare services took place, 2024

  • In an office29233%
  • In a facility58367%

Dr. Yim compared with the California median for neurosurgeons, 2024

  • Dr. Yim
  • California median
Medicare services
875vs 2164.1 times
Medicare patients
277vs 15480% above
Part D claims
61vs 262.3 times

Medians across 679 neurosurgeons in California with Dmand AI profiles that report each measure.

Dr. Yim'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. Yim

Need commercial claims for Dr. Yim?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Yim 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. Benjamin Yim treated 277 Medicare patients in 2024, average age 76

CMS counts 277 Medicare patients who saw Dr. Yim in 2024. The largest group is 75 to 84, with 118 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 34% are also on Medicaid. Their average risk score is 1.86, 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. Yim's median patient age at 65, with 52% women.

Medicare patients, 2024277
Average age76
Average risk score1.86
Also on Medicaid34%

Dr. Yim's Medicare patients by age, 2024

Dr. Yim's Medicare patients by sex, 2024

  • Women13348%
  • Men14452%

Chronic conditions among Dr. Yim's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Stroke or TIA54%
  4. Arthritis51%
  5. Diabetes38%
  6. Mood disorders35%
  7. Ischemic heart disease34%
  8. Anxiety32%

Share of Medicare patients with each condition. A patient can have several.

Dr. Yim'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

  • Women52%
  • Men46%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Benjamin Yim wrote 95 Medicare Part D claims in 2024

In 2024, Dr. Yim wrote 95 Medicare Part D claims for 40 patients. 48% of them were for generic drugs. CMS names the drug for 61 of them, across 2 drugs with 11 or more claims each, at $20,791 in total drug cost. In 2023, CMS named 71 claims across 2 drugs.

Part D claims, 202495
Drugs named by CMS2
Total drug cost$20,791
Part D patients40

Dr. Yim's Part D claims by kind of drug, 2024

  • Generic46 claims48%
  • Brand-name49 claims52%

Dr. Yim'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: 712024: 6114%

Drugs named by CMS: 2 in 2024, 2 in 2023.

See all prescribing by Dr. Yim

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. Benjamin Yim scored 84 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Yim for performance year 2024, reported as part of a group. CMS lists Dr. Yim as offering telehealth. CMS counts 74 procedures of spinal fusion by Dr. Yim, more than 66% of the clinicians it reports for that procedure.

Offers telehealth
Yes

Dr. Yim's MIPS scores, performance year 2024

  • 84of 100Final score
  • 67.6of 100Quality
  • 40of 100Improvement Activities
  • 72of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Yim ranks in Medicare procedure volume

Spinal fusion
66th percentile74 procedures
Laminectomy or laminotomy (partial removal of spine bones)
60th percentile29 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Leg revascularization (restoring blood flow): 1 to 10 procedures (CMS shows small counts as a range)

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. Benjamin Yim has 16 publications on record

Dmand AI links 16 papers to Dr. Yim, published from 2019 to 2025. 2020 was the busiest year, with 3. The most frequent topics are Stroke, Endovascular Procedures and Brain Ischemia. Dr. Yim has published most often in J Neurointerv Surg. Dr. Yim's most frequent co-authors are Johanna Therese Fifi, MD, Kurt A. Yaeger, MD and Reade Andrew De Leacy, MD.

Papers16
Years published2019 to 2025

Dr. Yim's papers by year, 2019 to 2025

Topics Dr. Yim writes about most

  • Stroke
  • Endovascular Procedures
  • Brain Ischemia
  • Coronavirus Infections
  • COVID-19
  • Feasibility Studies
  • Intracranial Aneurysm
  • Neuroendoscopy

Dr. Yim's most frequent co-authors

Recent publications by Dr. Yim

See all 16 publications and co-authors

See who Dr. Yim researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Yim 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. Benjamin Yim received $128,890 in industry payments from 2017 to 2025

CMS Open Payments shows 266 general payments to Dr. Yim from 26 drug and device companies from 2017 to 2025. Consulting fees make up the largest share, 42% of the total. Rapid Medical Ltd paid the most, $34,225.

General payments to Dr. Yim by program year, 2017 to 2025

General payments to Dr. Yim by kind, 2017 to 2025

$128.9Kin total
  • Consulting fees$53,82242%
  • Travel and lodging$43,69534%
  • Speaker and faculty fees$20,50016%
  • Food and beverage$10,8738%

Companies that paid Dr. Yim the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Yim

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Benjamin Yim graduated from Albany Medical College

Dr. Yim graduated from Albany Medical College in 2014.

  1. Medical schoolAlbany Medical College

Source: Dmand AI Professional Profile Data

Dr. Benjamin Yim accepts plans from 15 insurance carriers

Dr. Yim is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • United Healthcare
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +7 more carriersWith a free account

Plan types Dr. Yim accepts, by number of carriers

  1. PPO9
  2. Medicare8
  3. HMO6
  4. EPO4
  5. POS4
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Benjamin Yim'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. Benjamin Yim

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. Benjamin Yim's NPI number?

Dr. Benjamin Yim's NPI number is 1598176604. It was assigned on May 12, 2014, and it is active in the NPI Registry.

What kind of doctor is Dr. Benjamin Yim?

Dr. Benjamin Yim is a neurosurgeon in Walnut Creek, California. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).

Where does Dr. Benjamin Yim practice?

Dr. Yim practices at 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598. Dr. Yim's primary practice is John Muir Medical Center, Walnut Creek in Walnut Creek, California, part of John Muir Health. Dmand AI also links Dr. Yim to 1 hospital, 5 medical groups and 3 group practices and clinics.

What is Dr. Benjamin Yim's office phone number?

The practice phone on file for Dr. Yim is (925) 939-3000.

What is Dr. Benjamin Yim's medical license number?

Dr. Yim holds California license A143498, one of the licenses on file in 2 states.

Which states has Dr. Benjamin Yim been licensed in?

Dmand AI has state licenses on file for Dr. Yim in California (2016 to 2026) and New York (2019 to 2021).

Which hospitals is Dr. Benjamin Yim affiliated with?

Dr. Yim practices at John Muir Medical Center, Walnut Creek in Walnut Creek, California. Dr. Yim is also affiliated with Concord Medical Center. Dmand AI links Dr. Yim to 1 more hospital.

What medical group is Dr. Benjamin Yim part of?

Dr. Yim is linked to John Muir Health. Dmand AI links Dr. Yim to 5 more medical groups.

Does Dr. Benjamin Yim accept Medicare?

Yes. CMS data shows Dr. Yim billed Medicare for 875 services in 2024.

Does Dr. Benjamin Yim offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Yim as offering telehealth services.

Show 10 more questionsShow fewer questions

What is Dr. Benjamin Yim's MIPS score?

Dr. Yim's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.

How many Medicare patients does Dr. Benjamin Yim see?

CMS counts 277 Medicare patients who saw Dr. Yim in 2024, with an average age of 76.

What services does Dr. Benjamin Yim bill to Medicare?

In 2024, Dr. Yim's most billed Medicare services were office visit, established patient (99213), ultrasound (76937) and diagnostic imaging (75898).

Where did Dr. Benjamin Yim go to medical school?

Dr. Yim graduated from Albany Medical College in 2014.

What drugs does Dr. Benjamin Yim prescribe most?

In 2024 Medicare Part D data, Dr. Yim's most prescribed drugs by claims were Brilinta and Clopidogrel.

Has Dr. Benjamin Yim received payments from drug or device companies?

CMS Open Payments shows $128,890 in general payments to Dr. Yim from 26 companies from 2017 to 2025. The largest total came from Rapid Medical Ltd.

How long has Dr. Benjamin Yim been practicing?

Dr. Yim graduated from medical school in 2014, 12 years ago.

Does Dr. Benjamin Yim do research?

Dmand AI links 16 publications to Dr. Yim, published from 2019 to 2025.

Who does Dr. Benjamin Yim publish with?

Dr. Yim's most frequent co-authors are Johanna Therese Fifi, MD (4 shared papers), Kurt A. Yaeger, MD (4 shared papers) and Reade Andrew De Leacy, MD (3 shared papers).

What insurance does Dr. Benjamin Yim accept?

Dr. Yim is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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