Louis Zhang, MD
NPI 1952843757 · Vascular Surgery Physician · Monterey, CA
Enrolled with Medicare as Practitioner - Vascular Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louis Zhang, MD is a Vascular Surgery Physician provider in Monterey, CA (NPI 1952843757).
Provider details
- NPI number
- 1952843757
- Entity type
- Individual
- Primary specialty
- Vascular Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD61141095 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
907 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 134 | $128 |
| Complete Ultrasound Study of Arm and Leg Arteries93923 | 128 | $111 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 111 | $186 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 102 | $165 |
| Ultrasound of Leg Arteries Or Artery Grafts93925 | 66 | $243 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 66 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 19 | 14 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 12 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$919 across 12 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
Additional practice locations (3)
- 1520 San Pablo StHct 4300Los Angeles, CA 90033-5310Phone: (323) 442-9064
- 1075 N Curtis Rd Ste 101Boise, ID 83706-1348Phone: (208) 302-2800Fax: (208) 302-2825
- 62 W 7th Ave Ste 420Spokane, WA 99204-2321Phone: (509) 626-9440Fax: (509) 626-9475
Registry dates
- Enumerated
- 2016-11-09
- Last updated
- 2026-02-17
- Certified
- 2026-02-17
Frequently asked questions
- What is Louis Zhang's NPI number?
- Louis Zhang's National Provider Identifier (NPI) is 1952843757, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Zhang's specialty?
- Louis Zhang is listed in the NPPES registry with a primary specialty of Vascular Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Louis Zhang located?
- Louis Zhang's practice location on file with NPPES is 23845 Holman Hwy Ste 105, Monterey, CA 93940-5906.
- What is Louis Zhang's phone number?
- The practice phone number listed in the NPPES registry for Louis Zhang is (831) 333-3040.
- Does Louis Zhang accept Medicare?
- Louis Zhang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louis Zhang's NPI active?
- Yes — Louis Zhang's NPI (1952843757) is active in the NPPES registry as of the last update on 2026-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.