Physician Profile
Kathryn L. Treit, MD is a healthcare provider in Seattle, WA specializing in nephrology. Kathryn trained at University of Washington School of Medicine, graduating in 2008. Medicare claims data shows Kathryn provided 2,653 services to 1,336 patients. The services billed most often include kidney function blood test panel, insertion of needle into vein for collection of blood sample, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
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.
325 9TH AVE
Seattle, WA 98104
Within Nephrology 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
Acid-base disorders
Anatomical conditions
Autoimmune conditions
Blood disorders
Blood pressure
Cysts and growths
Diabetes complications
Dialysis complications
Electrolyte disorders
Fluid retention
Genetic disorders
Hormone disorders
Infections
Inflammatory conditions
Kidney damage
Kidney failure
Kidney filter diseases
Lab abnormalities
Metabolic disorders
Multi-organ conditions
Structural kidney issues
Symptoms
Urine abnormalities
Urine symptoms
Vascular conditions
Vascular kidney issues
Most searched procedures
Consultations
Diagnostic tests
Diagnostics
Dialysis
Dialysis access
Diet and nutrition
Imaging
Infusions
Interventional procedures
Lab tests
Medication management
Medication therapy
Patient education
Prevention
Procedures
Specialized therapies
Supportive care
Surgical procedures
Transplant care
Vascular access
2,653 services · 1,336 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
291 | More often than most peers in Nephrology |
| Dialysis services, 2-3 physician visits per month (20 years or older) | Treatment | 90961 |
94 | More often than most peers in Nephrology |
| Home dialysis services per month (20 years or older) | Treatment | 90966 |
72 | As often as other peers in Nephrology |
| Hemodialysis procedure with physician evaluation | Treatment | 90935 |
27 | |
| Kidney function blood test panel | Lab test | 80069 |
294 | As often as other peers in Nephrology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
283 | More often than most peers in Nephrology |
| Creatinine level to test for kidney function or muscle injury | Lab test | 82570 |
235 | More often than most peers in Nephrology |
| Total protein level, urine | Lab test | 84156 |
223 | As often as other peers in Nephrology |
| Manual urinalysis test with examination using microscope, automated | Lab test | 81001 |
180 | More often than most peers in Nephrology |
| Parathormone (parathyroid hormone) level | Lab test | 83970 |
140 | As often as other peers in Nephrology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Treit is a kidney specialist in Seattle, WA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nephrology”.
NPI registry
Dr. Treit is listed at 325 9Th Ave, Seattle, WA 98104. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (206) 520-5000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Treit's National Provider Identifier is 1811225535. 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
Dr. Treit attended University of Washington School of Medicine, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
Dr. Treit has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Treit performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as dialysis services, 2-3 physician visits per month and home dialysis services per month, 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 Dr. Treit. 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.