Patrick Hsieh, MD
NPI 1942405956 · Neurological Surgery Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Patrick Hsieh, MD is a Neurological Surgery Physician provider in Los Angeles, CA (NPI 1942405956).
Provider details
- NPI number
- 1942405956
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A104473 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
553 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 | 141 | $68 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 86 | $69 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 57 | $85 |
| Fusion of Additional Segment of Spine22614 | 55 | $392 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 51 | $85 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$56,410 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 (1)
- 105 E Sydnor Ave Ste 100Ridgecrest, CA 93555-5546Phone: (760) 463-8930Fax: (760) 463-8931
Registry dates
- Enumerated
- 2007-06-19
- Last updated
- 2021-05-17
- Certified
- 2021-05-17
Frequently asked questions
- What is Patrick Hsieh's NPI number?
- Patrick Hsieh's National Provider Identifier (NPI) is 1942405956, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Patrick Hsieh's specialty?
- Patrick Hsieh is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Patrick Hsieh located?
- Patrick Hsieh's practice location on file with NPPES is 1520 San Pablo St, Los Angeles, CA 90033-5310.
- What is Patrick Hsieh's phone number?
- The practice phone number listed in the NPPES registry for Patrick Hsieh is (323) 442-5720.
- Does Patrick Hsieh accept Medicare?
- Patrick Hsieh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Patrick Hsieh's NPI active?
- Yes — Patrick Hsieh's NPI (1942405956) is active in the NPPES registry as of the last update on 2021-05-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.