DR. MARK R CAREY MD
NPI 1003835422
Internal Medicine - Nephrology in Waukesha, WI

Active since July 18, 2006PECOS EnrolledAccepts Medicare Assignment
1260 SENTRY DR STE 140, WAUKESHA, WI 53186(262) 524-1024(262) 524-8767 Get Directions Write a Review

NPPES record last updated: June 28, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 22, 2020, Jun 10, 2020 (2 updates tracked since 2020).

About Dr. Mark R Carey Md NPPES

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

DR. MARK R CAREY MD (NPI 1003835422) is an individual nephrology provider in Waukesha, Wisconsin, licensed in Wisconsin (48342-020) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Waukesha Memorial Hospital, and is a graduate of Michigan State University College Of Human Medicine (2001).

NPPES Registry Identity

NPI1003835422
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameDR. MARK R CAREYCredential: MD
Location Address1260 SENTRY DR STE 140Waukesha, WI 53186-5990
Mailing Address1260 Sentry Dr Ste 140Waukesha, WI 53186-5990 · (262) 524-1024 · Fax (262) 524-8767
Fax(262) 524-8767
Sole ProprietorNo
Medical School CMSMichigan State University College Of Human MedicineGraduated 2001
Enumeration DateJuly 18, 2006
Last NPPES UpdateJune 28, 20262 updates tracked since enumeration
NPPES CertifiedDecember 22, 2020
NPI 1003835422 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License Licensed in WI · 48342-020
Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

1260 SENTRY DR STE 140, Waukesha, WI 53186

Other Identifiers 1

Medicaid34721400WI

Accepted 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. Mark R Carey Md 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 ID1456366947
PECOS Enrollment IDI20060221000344
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 14

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
751 services496 patients
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.
713 services253 patients
Dialysis services, 4 or more physician visits per month (20 years or older) 90960
Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.
180 services28 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.
136 services84 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.
109 services98 patients
Home dialysis services per month (20 years or older) 90966
Home dialysis services provide kidney treatment for patients aged 20 or older right in their own homes. This service includes necessary equipment, supplies, and support for performing dialysis. It's a convenient option that allows patients to maintain their daily routines while receiving essential care.
88 services11 patients

Hospital Affiliations CMS Care Compare 4

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

Waukesha Memorial Hospital

Acute Care Hospitals · Waukesha, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520008
Location725 American AveWaukesha, WI 53188 · Waukesha County
Emergency services Birthing friendly

Oconomowoc Memorial Hospital

Acute Care Hospitals · Oconomowoc, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520062
Location791 E Summit AveOconomowoc, WI 53066 · Waukesha County
Emergency services Birthing friendly

Fort Memorial Hospital

Acute Care Hospitals · Fort Atkinson, WI
OwnershipVoluntary non-profit - Private
CMS Certification Number520071
Location611 Sherman Ave EFort Atkinson, WI 53538 · Jefferson County
Emergency services Birthing friendly

Watertown Memorial Hospital

Acute Care Hospitals · Watertown, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520116
Location125 Hospital DriveWatertown, WI 53098 · Dodge County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53186 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
$123.69 typical visit price
range $53.90 – $163.24
Typical copayment $30.92 (range $13.47 – $40.81)
Most-billed visit code 99204
Established Patient
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 9

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

Internal Medicine (Nephrology)
1260 SENTRY DR STE 140
WAUKESHA, WI 53186
Nurse Practitioner (Acute Care)
1260 SENTRY DR STE 140
WAUKESHA, WI 53186
Nurse Practitioner
1260 SENTRY DR STE 140
WAUKESHA, WI 53186
Internal Medicine
1260 SENTRY DR STE 140
WAUKESHA, WI 53186
Internal Medicine (Nephrology)
1260 SENTRY DR STE 140
WAUKESHA, WI 53186
Nurse Practitioner
1260 SENTRY DR STE 140
WAUKESHA, WI 53186
Physician Assistant (Medical)
1260 SENTRY DR STE 140
WAUKESHA, WI 53186
Internal Medicine (Nephrology)
1260 SENTRY DR STE 140
WAUKESHA, WI 53186

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Carey's NPI number?

The NPI number for Mark Carey is 1003835422. It was assigned to this individual provider in the NPPES registry on July 18, 2006.

Where is Mark Carey located?

Mark Carey practices at 1260 Sentry Dr Ste 140, Waukesha, WI 53186. The listed phone number is (262) 524-1024.

What is Mark Carey's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Mark Carey enrolled in Medicare?

Yes. Mark Carey is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Mark Carey accept?

Health plans from Anthem Blue Cross and Blue Shield, Network Health and UnitedHealthcare list Mark Carey as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mark Carey affiliated with any hospitals?

According to CMS data, Mark Carey is affiliated with Waukesha Memorial Hospital, Oconomowoc Memorial Hospital, Fort Memorial Hospital and Watertown Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Mark Carey was last updated on June 28, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.