Physician Profile
Yih-Lin Nien, M.D. is a healthcare provider in Torrance, CA specializing in neurology. According to Medicare claims data, Yih-Lin cared for 452 Medicare patients across 543 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes, and subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes. This provider record is associated with NPI 1821204314.
Factual summary compiled by Guide.md from public records; not written by this provider.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
4101 TORRANCE BLVD
Torrance, CA 90503
Within Neurology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Headache and facial pain
Memory and cognition
Movement disorders
Neuromuscular and peripheral nerve
Seizures and epilepsy
Stroke and vascular
Brain & Spine
Brain tumors
Head & Facial Pain
Memory & Cognitive
Movement Disorders
Nerve Compression
Sleep & Movement
Spine and nerve
Spine, brain injury, and functional
Most searched procedures
Consultation and testing
Consultations & Exams
Consultations and exams
Device management
Diagnostic Testing
Infusion and medical therapies
Infusions & Therapies
Injections & Pain Relief
Medication Management
Neuromodulation
Office procedures
Trauma & Injury
543 services · 452 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
202 | More often than most peers in Neurology |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
150 | More often than most peers in Neurology |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
132 | More often than most peers in Neurology |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
59 | More often than most peers in Neurology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Yih-Lin Nien is a neurologist in Torrance, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Neurology”.
NPI registry
Yih-Lin Nien is listed at 4101 Torrance Blvd, Torrance, CA 90503. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (310) 303-5250. Contact the office directly to confirm availability and scheduling.
NPI registry
Yih-Lin Nien's National Provider Identifier is 1821204314. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Yih-Lin Nien attended Other, graduating in 2001. This comes from the CMS National Downloadable File.
CMS public data
Yih-Lin Nien has 25 years experience. Calculated from a graduation year of 2001, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Yih-Lin Nien the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Yih-Lin Nien. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.