Timothy Weng, PA-C
NPI 1396438537 · Physician Assistant · Mountain View, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Weng, PA-C is a Physician Assistant provider in Mountain View, CA (NPI 1396438537).
Provider details
- NPI number
- 1396438537
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- PA61521 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
3 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
163 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 74 | $94 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 55 | $130 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 20 | $115 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 14 | $170 |
Typical Medicare-allowed amounts for these services range $94–$170 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 33 | 30 |
| Azithromycin | 23 | 20 |
| Meloxicam | 15 | — |
| Zolpidem Tartrate | 13 | — |
| Levothyroxine Sodium | 12 | — |
| Omeprazole | 12 | — |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,080 across 9 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-06-02
- Last updated
- 2023-09-13
- Certified
- 2023-09-13
Frequently asked questions
- What is Timothy Weng's NPI number?
- Timothy Weng's National Provider Identifier (NPI) is 1396438537, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Weng's specialty?
- Timothy Weng is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Timothy Weng located?
- Timothy Weng's practice location on file with NPPES is 701 E El Camino Real, Mountain View, CA 94040-2833.
- What is Timothy Weng's phone number?
- The practice phone number listed in the NPPES registry for Timothy Weng is (650) 934-7808.
- Does Timothy Weng accept Medicare?
- Timothy Weng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Weng's NPI active?
- Yes — Timothy Weng's NPI (1396438537) is active in the NPPES registry as of the last update on 2023-09-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.