2026 NPPES data Neurology Physician NPI 1093762825 M.D., PH.D.
Verify on CMS →

Timothy Wei, M.D., PH.D.

Neurology Physician in Walnut Creek, California. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 19,866 in Neurology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration — see our methodology.

Federal data — no proprietary rating. We show these CMS records as-is — no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
1K
Medicare Part D claims · 211 beneficiaries · Neurology Physician avg: 1K
MIPS score
100/100
▲ 17 pts above national avg 83.1 · Exceptional
Industry payments
$1.1K
41 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Timothy Wei, M.D., PH.D. reported a CMS MIPS final score of 100/100 — above the 83.1 national average — and filed 1,442 Medicare Part D claims in 2023.

100/100
MIPS score · +17 vs avg
1K
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

Timothy Wei, M.D., PH.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

100 Top 7% higher than 93% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Timothy Wei, M.D., PH.D. sits

This provider among neurology physician peers

Across the 5,437 neurology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Timothy Wei, M.D., PH.D. writes more Part D claims than 59% of them and scores higher on MIPS quality than 92% — placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.148.372.496.6Part D claim volume — percentile in specialtyMIPS quality — percentilePart D claim volume — percentile in specialty: 38 · MIPS quality — percentile: 38Part D claim volume — percentile in specialty: 90 · MIPS quality — percentile: 18Part D claim volume — percentile in specialty: 80 · MIPS quality — percentile: 32Part D claim volume — percentile in specialty: 33 · MIPS quality — percentile: 83Part D claim volume — percentile in specialty: 72 · MIPS quality — percentile: 70Part D claim volume — percentile in specialty: 82 · MIPS quality — percentile: 53Part D claim volume — percentile in specialty: 88 · MIPS quality — percentile: 30Part D claim volume — percentile in specialty: 70 · MIPS quality — percentile: 67Part D claim volume — percentile in specialty: 62 · MIPS quality — percentile: 62Part D claim volume — percentile in specialty: 10 · MIPS quality — percentile: 92Part D claim volume — percentile in specialty: 63 · MIPS quality — percentile: 37Part D claim volume — percentile in specialty: 35 · MIPS quality — percentile: 58Part D claim volume — percentile in specialty: 25 · MIPS quality — percentile: 47Part D claim volume — percentile in specialty: 77 · MIPS quality — percentile: 10Part D claim volume — percentile in specialty: 92 · MIPS quality — percentile: 18Part D claim volume — percentile in specialty: 7 · MIPS quality — percentile: 17Part D claim volume — percentile in specialty: 20 · MIPS quality — percentile: 43Part D claim volume — percentile in specialty: 22 · MIPS quality — percentile: 63Part D claim volume — percentile in specialty: 28 · MIPS quality — percentile: 78Part D claim volume — percentile in specialty: 40 · MIPS quality — percentile: 7Part D claim volume — percentile in specialty: 17 · MIPS quality — percentile: 28Part D claim volume — percentile in specialty: 2 · MIPS quality — percentile: 80Part D claim volume — percentile in specialty: 18 · MIPS quality — percentile: 90Part D claim volume — percentile in specialty: 78 · MIPS quality — percentile: 0Part D claim volume — percentile in specialty: 68 · MIPS quality — percentile: 92Part D claim volume — percentile in specialty: 87 · MIPS quality — percentile: 0Part D claim volume — percentile in specialty: 95 · MIPS quality — percentile: 18Part D claim volume — percentile in specialty: 12 · MIPS quality — percentile: 48Part D claim volume — percentile in specialty: 15 · MIPS quality — percentile: 40Part D claim volume — percentile in specialty: 0 · MIPS quality — percentile: 60Part D claim volume — percentile in specialty: 13 · MIPS quality — percentile: 35Part D claim volume — percentile in specialty: 57 · MIPS quality — percentile: 33Part D claim volume — percentile in specialty: 45 · MIPS quality — percentile: 13Part D claim volume — percentile in specialty: 85 · MIPS quality — percentile: 5Part D claim volume — percentile in specialty: 52 · MIPS quality — percentile: 75Part D claim volume — percentile in specialty: 67 · MIPS quality — percentile: 65Part D claim volume — percentile in specialty: 48 · MIPS quality — percentile: 92Part D claim volume — percentile in specialty: 75 · MIPS quality — percentile: 8Part D claim volume — percentile in specialty: 50 · MIPS quality — percentile: 50Part D claim volume — percentile in specialty: 42 · MIPS quality — percentile: 57Part D claim volume — percentile in specialty: 97 · MIPS quality — percentile: 55Part D claim volume — percentile in specialty: 60 · MIPS quality — percentile: 25Part D claim volume — percentile in specialty: 55 · MIPS quality — percentile: 87Part D claim volume — percentile in specialty: 83 · MIPS quality — percentile: 68Part D claim volume — percentile in specialty: 27 · MIPS quality — percentile: 92Part D claim volume — percentile in specialty: 73 · MIPS quality — percentile: 12Part D claim volume — percentile in specialty: 93 · MIPS quality — percentile: 18Part D claim volume — percentile in specialty: 32 · MIPS quality — percentile: 80Part D claim volume — percentile in specialty: 58 · MIPS quality — percentile: 52Part D claim volume — percentile in specialty: 65 · MIPS quality — percentile: 27Part D claim volume — percentile in specialty: 100 · MIPS quality — percentile: 0Part D claim volume — percentile in specialty: 37 · MIPS quality — percentile: 72Part D claim volume — percentile in specialty: 5 · MIPS quality — percentile: 92Part D claim volume — percentile in specialty: 8 · MIPS quality — percentile: 40Part D claim volume — percentile in specialty: 98 · MIPS quality — percentile: 73Part D claim volume — percentile in specialty: 47 · MIPS quality — percentile: 83Part D claim volume — percentile in specialty: 43 · MIPS quality — percentile: 75Part D claim volume — percentile in specialty: 3 · MIPS quality — percentile: 88Part D claim volume — percentile in specialty: 23 · MIPS quality — percentile: 45Part D claim volume — percentile in specialty: 30 · MIPS quality — percentile: 13Timothy Wei, M.D., PH.D. — Part D claim volume — percentile in specialty: 59 · MIPS quality — percentile: 92
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one neurology physician peer from a representative sample of 60; the gold marker is Timothy Wei, M.D., PH.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic — not verified)

Timothy Wei, M.D., PH.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Timothy Wei, M.D., PH.D.?

High performer (top quartile)

NPI registry status

Active

Issued 05/27/2006

NPI 1093762825

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

1,442 10% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

MIPS final score

100/100 16.9 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in California

How Neurology Physician compares to other specialties among California providers

California providers

Largest specialties in California (% of in-state providers)

Behavior Technician — 17.3%Behavior Technician17.3%Marriage & Family Therapist — 5.5%Marriage & Family Therapist5.5%Student in an Organized Health Care Education/Training Program — 5%Student in an Organized Health Care Education/Training Program5%Mental Health Counselor — 3.9%Mental Health Counselor3.9%Pharmacist — 3.5%Pharmacist3.5%Clinical Social Worker — 3.1%Clinical Social Worker3.1%Neurology Physician — 0.2%Neurology Physician0.2%
Largest specialties in California (% of in-state providers)

Medicare quality performance — MIPS

Timothy Wei, M.D., PH.D.'s 2023 MIPS final score plotted against the Neurology Physician national average

High performer (top quartile)
MIPS Final Score
100/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Neurology Physician) — 100/100 vs national avg 83.1

0%100%National avg83%99%
MIPS final score (Neurology Physician) — 100/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Timothy Wei, M.D., PH.D. appears in the CMS NPPES registry as a Neurology Physician provider holding M.D., PH.D. credentials at 1981 N BROADWAY, Walnut Creek, CA, 94596, with a listed phone of (925) 938-5252. NPI 1093762825 was issued on 05/27/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Wei most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,442 prescription claims written by this provider, covering 211 Medicare beneficiaries and totaling roughly $764K in drug spend, with an opioid prescribing rate of 1.9%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year (Quality 100), compared with the national average of 83.1.

Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1981 N BROADWAY
Walnut Creek, CA 94596

Provider Details

NPI 1093762825
Specialty Neurology Physician
Credentials M.D., PH.D.
Gender Male
NPI Issued 05/27/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

100
Final Score
Avg: 83.1
100
Quality
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Timothy Wei, M.D., PH.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

East Bay Neurology Inc
Walnut Creek, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Timothy Wei, M.D., PH.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.1K

Largest payer

ABBVIE INC.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to Timothy Wei, M.D., PH.D.. To verify Timothy Wei, M.D., PH.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,442
Total Claims
$764K
Total Drug Cost
211
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,580
Total Day Supply
74,964
Generic Drug Cost
$82K
Opioid Claims
27 (1.9% rate)

Patient Demographics

Average Patient Age
75.0 years
Avg HCC Risk Score
1.45
Gender Split
63% female / 37% male
Age Distribution
<65: 25, 65-74: 67, 75-84: 86, 85+: 33

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Timothy Wei, M.D., PH.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Gabapentin
83
Pregabalin
70
Duloxetine Hcl
62
Donepezil Hcl
59
Carbidopa-Levodopa
Carbidopa/Levodopa
58
Botox
Onabotulinumtoxina
50
Rytary
Carbidopa/Levodopa
41
Carbidopa-Levodopa Er
Carbidopa/Levodopa
39
Aimovig Autoinjector
Erenumab-Aooe
38
Propranolol Hcl
38

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Neurology Physician Overview

How Timothy Wei, M.D., PH.D. fits within the Neurology Physician landscape nationally.

19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider

Timothy Wei, M.D., PH.D.'s 1,442 claims are above the specialty average of 1,309.

Nearby Neurology Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Wei.

Compare Neurology Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the California medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Neurology Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Timothy Wei, M.D., PH.D.'s specialty?
Timothy Wei, M.D., PH.D. specializes in Neurology Physician and practices in Walnut Creek, California. Credentials: M.D., PH.D..
How much does Timothy Wei, M.D., PH.D. prescribe under Medicare Part D?
In 2023, Timothy Wei, M.D., PH.D. wrote 1,442 Medicare Part D claims totaling $764K in drug costs for 211 beneficiaries.
What is Timothy Wei, M.D., PH.D.'s Medicare quality score?
Timothy Wei, M.D., PH.D. has a CMS MIPS Final Score of 100/100 (Quality: 100). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Timothy Wei, M.D., PH.D. located?
Timothy Wei, M.D., PH.D. is located at 1981 N BROADWAY, Walnut Creek, CA, 94596. Phone: (925) 938-5252.
What is Timothy Wei, M.D., PH.D.'s NPI number?
Timothy Wei, M.D., PH.D.'s National Provider Identifier (NPI) is 1093762825, issued on 05/27/2006.
Does Timothy Wei, M.D., PH.D. prescribe opioids?
Yes, Timothy Wei, M.D., PH.D. had 27 opioid claims in 2023 with an opioid prescribing rate of 1.9%.
How many Neurology Physician providers are there in the US?
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does Timothy Wei, M.D., PH.D. prescribe most often?
Based on 2023 Medicare Part D data, Timothy Wei, M.D., PH.D.'s most frequently prescribed drugs include Gabapentin, Pregabalin, Duloxetine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Timothy Wei, M.D., PH.D. accept Medicare?
Timothy Wei, M.D., PH.D. appears in CMS Medicare data with 1,442 Part D claims and 211 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Timothy Wei, M.D., PH.D.'s credentials?
Timothy Wei, M.D., PH.D.'s NPI is 1093762825 with credentials M.D., PH.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the PlainDoctor editorial team.