DR. DORENE KAY ZERFAS M.D.
NPI 1427299973
Surgery in West Bend, WI

Q: What is Dorene Zerfas's NPI number?

The NPI number for Dorene Zerfas is 1427299973. It was assigned to this individual provider in the NPPES registry on March 12, 2009.

Q: What is Dorene Zerfas's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Q: When was this NPI record last updated?

The NPPES record for Dorene Zerfas was last updated on July 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 12, 2009PECOS EnrolledAccepts Medicare Assignment

82.39/100

CMS Quality Rating

3200 PLEASANT VALLEY RD, WEST BEND, WI 53095(262) 836-7300 Get Directions Write a Review

NPPES record last updated: July 8, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

On this page

About Dr. Dorene Kay Zerfas M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DORENE KAY ZERFAS M.D. (NPI 1427299973) is an individual surgery provider in West Bend, Wisconsin, licensed in Indiana (01076316A) and active in the NPI registry since March 2009. She is enrolled in Medicare PECOS, is affiliated with Ascension St Francis Hospital, and is a graduate of Other (2008).

NPPES Registry Identity

NPI1427299973

Entity TypeIndividualFemale

Primary Taxonomy208600000X

Provider Legal NameDR. DORENE KAY ZERFASCredential: M.D.

Location Address3200 PLEASANT VALLEY RDWest Bend, WI 53095-9274

Mailing Address3200 Pleasant Valley RdWest Bend, WI 53095-9274 · (262) 836-7300 · Fax (262) 836-2436

Phone(262) 836-7300

Sole ProprietorNo

Medical School CMSOtherGraduated 2008

Enumeration DateMarch 12, 2009

Last NPPES UpdateJuly 8, 2026

NPPES CertifiedJuly 8, 2026

✔ NPI 1427299973 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208600000X

Licenses✔ Licensed in IN · 01076316A✔ Licensed in NY · 270530✔ Licensed in WI · 71608-20

Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

3200 PLEASANT VALLEY RD, West Bend, WI 53095

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Network Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Dorene Kay Zerfas M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1759519549

PECOS Enrollment IDI20190909002185

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

32 services17 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

22 services14 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

16 services13 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

15 services15 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

14 services14 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

13 services13 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ascension St Francis Hospital

Acute Care Hospitals · Milwaukee, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520078

Location3237 S 16th StMilwaukee, WI 53215 · Milwaukee County

Emergency services

Community Memorial Hospital

Acute Care Hospitals · Menomonee Falls, WI

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520103

LocationW180 N8085 Town Hall RdMenomonee Falls, WI 53051 · Waukesha County

Emergency services

Ascension SE Wisconsin Hospital

Acute Care Hospitals · Milwaukee, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number520136

Location5000 W Chambers StMilwaukee, WI 53210 · Milwaukee County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53095 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$82.92 typical visit price

range $53.90 – $163.24

Typical copayment $20.73 (range $13.47 – $40.81)

Most-billed visit code 99203

Established Patient

$67.37 typical visit price

range $17.40 – $133.76

Typical copayment $16.84 (range $4.35 – $33.44)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

82.39/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

77.88

Promoting Interoperability

Improvement Activities

Cost

74.38

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ABDEL HAI ISMAIL ALQWASMI M.D

Internal Medicine (Hematology & Oncology)

3200 PLEASANT VALLEY RD, DIVISION OF NEOPLASTIC DISEASES
WEST BEND, WI 53095

Washington County (262) 836-7200

MARY OGNENOFF OTR

Occupational Therapist