Timothy Weng, PA-C

  • Stanford, CA
  • Physician assistant
NPI1396438537PAC ID3274989231
Medicare patients, 2024
156
Part D claims, 2024
322
Hospital affiliations
2
Industry payments
$117
Medical group
1
Practice address
300 Pasteur Drive, Stanford, CA 94305
Practice phone
Call (650) 723-4000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Stanford Hospital at 300 Pasteur Drive

Hospital · Stanford, California

See all 5 affiliations

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Timothy Weng is a physician assistant in Stanford, California

Timothy Weng practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.

Timothy Weng's NPI, 1396438537, was assigned on June 2, 2023. Timothy Weng holds California license PA61521.

NPI and contact details
Medicare PAC ID
3274989231
NPI enumeration date
June 2, 2023
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(650) 723-4000
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
30
Medical school graduation
2022

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

Timothy Weng practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California

Timothy Weng's primary practice is Stanford Hospital at 300 Pasteur Drive, at 300 Pasteur Drive, Stanford, CA 94305 in Santa Clara County. The practice phone is (650) 723-4000.

Source: Dmand AI Affiliation Data

Timothy Weng is affiliated with 4 sites of care and 1 medical group

Timothy Weng's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Timothy Weng to 1 more hospital, 1 group practice or clinic and 1 home health agency, each named with a free account.

See all 5 affiliations for Timothy Weng

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

Dmand AI tracks the EHR system at Timothy Weng's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Timothy Weng practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Stanford Hospital at 300 Pasteur DriveAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Timothy Weng is one of 11,482 physician assistants in California

Physician assistant is Timothy Weng's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Timothy Weng is licensed in California.

Specialties and state licenses

  • Physician assistant, CaliforniaPrimaryLicense PA61521 · taxonomy 363A00000X

Physician assistants near Timothy Weng

Counts of physician assistants 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

Timothy Weng treated 156 Medicare patients in 2024, average age 69

CMS counts 156 Medicare patients who saw Timothy Weng in 2024. The largest group is 65 to 74, with 129 patients. 71% of them have high cholesterol, and 53% have high blood pressure. 9% are also on Medicaid. Their average risk score is 0.68, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Timothy Weng's median patient age at 50, with 43% women.

Medicare patients, 2024156
Average age69
Average risk score0.68
Also on Medicaid9%

Timothy Weng's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Timothy Weng's Medicare patients by sex, 2024

  • Women10769%
  • Men4931%

Chronic conditions among Timothy Weng's Medicare patients, 2024

  1. High cholesterol71%
  2. High blood pressure53%
  3. Arthritis31%
  4. Ischemic heart disease18%
  5. Anxiety17%
  6. Diabetes16%
  7. Osteoporosis16%
  8. Mood disorders15%

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

Timothy Weng's patients across all payers

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

Patient panel by age, all payers

Median age 50

Patient panel by sex, all payers

  • Women43%
  • Men56%

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

Timothy Weng wrote 322 Medicare Part D claims in 2024

In 2024, Timothy Weng wrote 322 Medicare Part D claims for 160 patients. 84% of them were for generic drugs.

Part D claims, 2024322
Part D patients160

Timothy Weng's Part D claims by kind of drug, 2024

  • Generic271 claims84%
  • Brand-name and other51 claims16%

Drug classes CMS tracks in Timothy Weng's Part D claims, 2024

  • Antibiotics29%94 of 322 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

Timothy Weng offers telehealth to Medicare patients

Timothy Weng accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Timothy Weng as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Timothy Weng received $117 in industry payments in 2025

CMS Open Payments shows 1 general payment to Timothy Weng from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Eli Lilly and Company paid the most, $117.

Companies that paid Timothy Weng the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Timothy Weng

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

Sources for Timothy Weng'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 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 (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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 Timothy Weng

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Timothy Weng's NPI number?

Timothy Weng's NPI number is 1396438537. It was assigned on June 2, 2023, and it is active in the NPI Registry.

What does Timothy Weng specialize in?

Timothy Weng is a physician assistant in Stanford, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Timothy Weng practice?

Timothy Weng practices at 300 Pasteur Drive, Stanford, CA 94305. Timothy Weng's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Timothy Weng to 1 hospital, 1 group practice or clinic and 1 home health agency.

What is Timothy Weng's office phone number?

The practice phone on file for Timothy Weng is (650) 723-4000.

What is Timothy Weng's medical license number?

Timothy Weng holds California license PA61521.

Which hospitals is Timothy Weng affiliated with?

Timothy Weng practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California. Dmand AI links Timothy Weng to 1 more hospital.

What medical group is Timothy Weng part of?

Timothy Weng is linked to Palo Alto Foundation Medical Group.

Does Timothy Weng accept Medicare?

Yes. CMS lists Timothy Weng as accepting Medicare assignment.

Does Timothy Weng offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Timothy Weng as offering telehealth services.

How many Medicare patients does Timothy Weng see?

CMS counts 156 Medicare patients who saw Timothy Weng in 2024, with an average age of 69.

Has Timothy Weng received payments from drug or device companies?

CMS Open Payments shows $117 in general payments to Timothy Weng from 1 company from 2025 to 2025. The largest total came from Eli Lilly and Company.

How long has Timothy Weng been practicing?

Timothy Weng graduated from medical school in 2022, 4 years ago.

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