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Physician

WILLIAM ASCH, M.D., PH.D.

Nephrology

NEW HAVEN, CT, 06510
NPI: 1003933326Also: Internal Medicine

Contact

Nephrology

NEW HAVEN, CT

YALE-NEW HAVEN HOSPITAL

203-688-4242

ynhh.org

GREENWICH HOSPITAL ASSOCIATION -

203-863-3000

greenwichhospital.org

LAWRENCE & MEMORIAL HOSPITAL

860-442-0711

lmhospital.org

Hospital Affiliations

Search procedure prices at these hospitals only

Common Procedures for Nephrology

Dialysis ManagementKidney BiopsyAV Fistula EvaluationChronic Kidney Disease ManagementElectrolyte ManagementTransplant EvaluationHypertension ManagementPeritoneal Dialysis Catheter Placement

Based on specialty. Actual services may vary — contact the provider's office to confirm.

Procedure Pricing (Medicare Data)

Based on CMS Medicare Provider Utilization data for 2023. These represent what this physician charged Medicare, not necessarily what you would pay. Compare with other physicians

ProcedureAvg ChargeMedicare AllowedMedicare PaidServices
50200
Needle biopsy of kidney
$2,720$133$10620
99215
Established patient office or other outpatient visit, 40-54 minutes
$495$151$12111
99222
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
$470$137$10447
99214
Established patient office or other outpatient visit, 30-39 minutes
$375$102$79139
99233
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
$355$126$9730
99213
Established patient office or other outpatient visit, 20-29 minutes
$255$68$5012
99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
$250$84$66263
76942
Ultrasonic guidance for needle placement
$144$32$2620

Compare prices for procedures performed by Nephrology physicians

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Physician identity data from the NPPES NPI Registry. Last synced 3/28/2026.