Provider Profile
Listed in the NPI registry as a physician assistant, Madeline Tien practices in Glendale, CA. Madeline graduated from University of Southern California Keck School of Medicine in 2021. According to Medicare claims data, Madeline cared for 226 Medicare patients across 234 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, relocation of major upper arm vein with connection to arm artery for hemodialysis, and revision of hemodialysis graft.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
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.
1019 S CENTRAL AVE
Glendale, CA 91204
234 services · 226 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Relocation of major upper arm vein with connection to arm artery for hemodialysis | Procedure | 36818 |
45 | Too few peers to compare |
| Revision of hemodialysis graft | Procedure | 36832 |
35 | Too few peers to compare |
| Relocation of upper arm surface vein with connection to arm artery for hemodialysis | Procedure | 36819 |
23 | Too few peers to compare |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
53 | As often as other peers in Physician Assistant |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
33 | More often than most peers in Physician Assistant |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
29 | As often as other peers in Physician Assistant |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
16 | Less often than most peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Madeline Tien is a physician assistant in Glendale, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Madeline Tien is listed at 1019 S Central Ave, Glendale, CA 91204. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (818) 244-4374. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Madeline Tien's National Provider Identifier is 1568041424. 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
Madeline Tien attended University of Southern California Keck School of Medicine, graduating in 2021. This comes from the CMS National Downloadable File.
CMS public data
Madeline Tien has 5 years experience. Calculated from a graduation year of 2021, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Madeline Tien performs procedures including relocation of major upper arm vein with connection to arm artery for hemodialysis, revision of hemodialysis graft and relocation of upper arm surface vein with connection to arm artery for hemodialysis, alongside routine visits and testing. 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 Madeline Tien. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.