Dr. Timothy Y. Wei, MD, PhD

  • Walnut Creek, CA
  • Neurologist
NPI1093762825PAC ID3870628100
Medicare services, 2024
21,084
Medicare patients, 2024
674
Part D claims, 2024
1,267
Publications
17
MIPS score, 2024
93
Practice address
675 Ygnacio Valley Rd, Walnut Creek, CA 94596
Practice phone
Call (925) 938-5252
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

East Bay Neurology, Inc.

Walnut Creek, California

See all 5 affiliations

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Dr. Timothy Y. Wei is a neurologist in Walnut Creek, California

Dr. Wei practices at East Bay Neurology, Inc. in Walnut Creek, California.

Dr. Wei's NPI, 1093762825, was assigned on May 27, 2006. Dr. Wei graduated from Other in 1982. Dr. Wei holds California license C53812.

NPI and contact details
Medicare PAC ID
3870628100
NPI enumeration date
May 27, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(925) 938-5252
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
70
Medical school graduation
1982

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

Dr. Timothy Y. Wei practices at East Bay Neurology, Inc. in Walnut Creek, California

Dr. Wei's primary practice is East Bay Neurology, Inc., at 675 Ygnacio Valley Rd, Walnut Creek, CA 94596 in Contra Costa County. The practice phone is (925) 938-5252.

  • East Bay Neurology, Inc.
    675 Ygnacio Valley Rd, Walnut Creek, CA 94596 · Contra Costa CountyPhone(925) 938-5252

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Timothy Y. Wei is affiliated with 4 sites of care and 1 medical group

Dr. Wei's primary practice is East Bay Neurology, Inc. in Walnut Creek, California. Dr. Wei is also affiliated with John Muir Medical Center, Walnut Creek. The medical group on file is East Bay Neurology. Dmand AI also links Dr. Wei to 1 more hospital and 1 group practice or clinic, each named with a free account.

See all 5 affiliations for Dr. Wei

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Timothy Y. Wei's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wei practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
East Bay Neurology, Inc.Available with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Timothy Y. Wei is one of 2,207 neurologists in California

Neurology is Dr. Wei's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Wei is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Wei's licenses on file in 2 states: California and Michigan.

Specialties and state licenses

  • Neurology, CaliforniaPrimaryLicense C53812 · 2009 to 2026 · taxonomy 2084N0400X
  • Michigan licenseLicense 4301075935 · 2000 to 2013

Clinical focus

Dmand AI lists acute mini-stroke (TIA), alzheimer's disease, carpal tunnel syndrome, epilepsy, essential tremor, fibromyalgia and chronic pain, lower back pain and migraine and chronic headache among the conditions Dr. Wei treats.

Neurologists near Dr. Wei

Counts of neurologists 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. Timothy Y. Wei billed Medicare for 21,084 services in 2024

CMS data shows 21,084 Medicare services from Dr. Wei across 23 procedure codes in 2024, for 674 Medicare patients. Medicare paid $388,177 for them. Every service was in an office.

Medicare services, 202421,084
Medicare patients674
Paid by Medicare$388,177
Procedure codes23

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

  • 2023
  • 2024
Drugs given in the office
2023: 21,5322024: 18,05916%
Tests and treatments
2023: 1,2862024: 2,27677%
Office and hospital visits
2023: 5092024: 58014%
Other services
2023: 02024: 98
Surgery
2023: 832024: 7114%

Dr. Wei compared with the California median for neurologists, 2024

  • Dr. Wei
  • California median
Medicare services
21,084vs 40452.2 times
Medicare patients
674vs 1903.5 times
Part D claims
1,027vs 3243.2 times

Medians across 1,995 neurologists in California with Dmand AI profiles that report each measure.

Dr. Wei'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. Wei

Need commercial claims for Dr. Wei?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Wei and other neurologists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Timothy Y. Wei treated 674 Medicare patients in 2024, average age 75

CMS counts 674 Medicare patients who saw Dr. Wei in 2024. The largest group is 75 to 84, with 278 patients. 75% of them have high cholesterol, and 69% have high blood pressure. 5% are also on Medicaid. Their average risk score is 1.17, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Wei's median patient age at 63, with 61% women.

Medicare patients, 2024674
Average age75
Average risk score1.17
Also on Medicaid5%

Dr. Wei's Medicare patients by age, 2024

Dr. Wei's Medicare patients by sex, 2024

  • Women42062%
  • Men25438%

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

  1. High cholesterol75%
  2. High blood pressure69%
  3. Arthritis54%
  4. Anxiety27%
  5. Mood disorders26%
  6. Osteoporosis26%
  7. Depression24%
  8. Ischemic heart disease23%

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

Dr. Wei's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 63

Patient panel by sex, all payers

  • Women61%
  • Men36%

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

Dr. Timothy Y. Wei wrote 1,267 Medicare Part D claims in 2024

In 2024, Dr. Wei wrote 1,267 Medicare Part D claims for 208 patients. 81% of them were for generic drugs. CMS names the drug for 1,027 of them, across 39 drugs with 11 or more claims each, at $329,376 in total drug cost. In 2023, CMS named 1,170 claims across 40 drugs.

Part D claims, 20241,267
Drugs named by CMS39
Total drug cost$329,376
Part D patients208

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

  • Generic1,030 claims81%
  • Brand-name and other237 claims19%

Dr. Wei'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. Wei's Part D claims, 2024

  • Opioids3%37 of 1,267 claims
  • Antipsychotics, patients 65 and over2%21 of 1,267 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: 1,1702024: 1,02712%

Drugs named by CMS: 39 in 2024, 40 in 2023.

See all prescribing by Dr. Wei

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. Timothy Y. Wei scored 93 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Wei for performance year 2024, reported as part of a group. Dr. Wei accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Wei as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Wei's MIPS scores, performance year 2024

  • 93of 100Final score
  • 100of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 77of 100Cost

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

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Timothy Y. Wei has 17 publications on record

Dmand AI links 17 papers to Dr. Wei, published from 2009 to 2023. 2018 was the busiest year, with 2. The most frequent topics are Cells, Cultured, Coculture Techniques and Endothelial Cells. Dr. Wei has published most often in PLoS One. Dr. Wei's most frequent co-authors are Gary B. Nackman, MD, Daniel R. Anderson, MD and Robert Jay Baumann, MD.

Papers17
Years published2009 to 2023

Dr. Wei's papers by year, 2009 to 2023

Topics Dr. Wei writes about most

  • Cells, Cultured
  • Coculture Techniques
  • Endothelial Cells
  • Magnetic Resonance Imaging
  • Myocytes, Smooth Muscle
  • Shear Strength

Dr. Wei's most frequent co-authors

Recent publications by Dr. Wei

See all 17 publications and co-authors

See who Dr. Wei researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Wei works with, so you can find a warm path to the right neurologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Timothy Y. Wei received $43,645 in industry payments from 2016 to 2025

CMS Open Payments shows 552 general payments to Dr. Wei from 40 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 67% of the total. Abbvie Inc. paid the most, $11,542.

General payments to Dr. Wei by program year, 2016 to 2025

General payments to Dr. Wei by kind, 2016 to 2025

$43.6Kin total
  • Speaker and faculty fees$29,30067%
  • Food and beverage$8,92520%
  • Consulting fees$2,8006%
  • Travel and lodging$2,4846%
  • Education$1370%

Companies that paid Dr. Wei the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Wei

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

Dr. Timothy Y. Wei graduated from Other

Dr. Wei graduated from Other in 1982.

  1. Medical schoolOther
  2. Board certified in neurologyAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Dr. Timothy Y. Wei accepts plans from 14 insurance carriers

Dr. Wei is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. 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. Wei accepts, by number of carriers

  1. Medicare8
  2. PPO8
  3. HMO6
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Timothy Y. Wei'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)
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. Timothy Y. Wei

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. Timothy Y. Wei's NPI number?

Dr. Timothy Y. Wei's NPI number is 1093762825. It was assigned on May 27, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Timothy Y. Wei?

Dr. Timothy Y. Wei is a neurologist in Walnut Creek, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).

Where does Dr. Timothy Y. Wei practice?

Dr. Wei practices at 675 Ygnacio Valley Rd, Walnut Creek, CA 94596. Dr. Wei's primary practice is East Bay Neurology, Inc. in Walnut Creek, California. Dmand AI also links Dr. Wei to 1 hospital and 1 group practice or clinic.

What is Dr. Timothy Y. Wei's office phone number?

The practice phone on file for Dr. Wei is (925) 938-5252.

What is Dr. Timothy Y. Wei's medical license number?

Dr. Wei holds California license C53812, one of the licenses on file in 2 states.

Which states has Dr. Timothy Y. Wei been licensed in?

Dmand AI has state licenses on file for Dr. Wei in California (2009 to 2026) and Michigan (2000 to 2013).

Which hospitals is Dr. Timothy Y. Wei affiliated with?

Dr. Wei is affiliated with John Muir Medical Center, Walnut Creek. Dmand AI links Dr. Wei to 1 more hospital.

What medical group is Dr. Timothy Y. Wei part of?

Dr. Wei is linked to East Bay Neurology.

Does Dr. Timothy Y. Wei accept Medicare?

Yes. CMS data shows Dr. Wei billed Medicare for 21,084 services in 2024, and Dr. Wei accepts Medicare assignment.

Does Dr. Timothy Y. Wei offer telehealth?

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

Show 11 more questionsShow fewer questions

What is Dr. Timothy Y. Wei's MIPS score?

Dr. Wei's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.

How many Medicare patients does Dr. Timothy Y. Wei see?

CMS counts 674 Medicare patients who saw Dr. Wei in 2024, with an average age of 75.

Is Dr. Timothy Y. Wei board certified?

Yes. Dr. Wei is board certified in neurology by the American Board of Psychiatry and Neurology.

What services does Dr. Timothy Y. Wei bill to Medicare?

In 2024, Dr. Wei's most billed Medicare services were injected or infused drug (J0585), medical service (97814) and nerve and brain test (95886).

Where did Dr. Timothy Y. Wei go to medical school?

Dr. Wei graduated from Other in 1982.

What drugs does Dr. Timothy Y. Wei prescribe most?

In 2024 Medicare Part D data, Dr. Wei's most prescribed drugs by claims were Donepezil HCl, Gabapentin and Pregabalin.

Has Dr. Timothy Y. Wei received payments from drug or device companies?

CMS Open Payments shows $43,645 in general payments to Dr. Wei from 40 companies from 2016 to 2025. The largest total came from Abbvie Inc.

How long has Dr. Timothy Y. Wei been practicing?

Dr. Wei graduated from medical school in 1982, 44 years ago.

Does Dr. Timothy Y. Wei do research?

Dmand AI links 17 publications to Dr. Wei, published from 2009 to 2023.

Who does Dr. Timothy Y. Wei publish with?

Dr. Wei's most frequent co-authors are Gary B. Nackman, MD (2 shared papers), Daniel R. Anderson, MD (1 shared paper) and Robert Jay Baumann, MD (1 shared paper).

What insurance does Dr. Timothy Y. Wei accept?

Dr. Wei is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

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