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DONALD J HENNESSY M.D.
NPI 1811960495
Internal Medicine in Cedarburg, WI

Active since February 13, 2006PECOS Enrolled
N143W6515 PIONEER RD, CEDARBURG, WI 53012(262) 377-6933(262) 376-2495 Get Directions Write a Review

NPPES record last updated: January 16, 2018. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Donald J Hennessy M.d. NPPES

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

DONALD J HENNESSY M.D. (NPI 1811960495) is an individual internal medicine provider in Cedarburg, Wisconsin, licensed in Wisconsin (23781) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Menomonee Falls.

NPPES Registry Identity

NPI1811960495
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDONALD J HENNESSYCredential: M.D.
Location AddressN143W6515 PIONEER RDCedarburg, WI 53012-2705
Mailing AddressN143w6515 Pioneer RdCedarburg, WI 53012-2705 · (262) 377-6933 · Fax (262) 376-2495
Phone(262) 377-6933
Fax(262) 376-2495
Sole ProprietorNo
Enumeration DateFebruary 13, 2006
Last NPPES UpdateJanuary 16, 2018
✔ NPI 1811960495 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in WI · 23781
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
N143W6515 PIONEER RD, Cedarburg, WI 53012
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Secondary Practice Location 1

Location 1W180N7950 Town Hall RdMenomonee Falls, WI 53051-4049 · Phone (262) 255-2500

Other Identifiers 1

Medicaid30630400WI

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Donald J Hennessy M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53012 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.

DANIEL JABLONSKI MD
Internal Medicine
N143W6515 PIONEER RD
CEDARBURG, WI 53012
Ozaukee County (262) 377-6933
SANDRA A. BOERNER APNP
Nurse Practitioner (Family)
N143W6515 PIONEER RD
CEDARBURG, WI 53012
Ozaukee County (262) 377-6933
KRISTIN A LOHR APNP
Nurse Practitioner (Family)
N143W6515 PIONEER RD
CEDARBURG, WI 53012
Ozaukee County (262) 377-6933
ELIZABETH HAGEN MD
Pediatrics
N143W6515 PIONEER RD
CEDARBURG, WI 53012
Ozaukee County (262) 377-6933
MELANIE M. THOMPSON M.D.
Family Medicine
N143W6515 PIONEER RD
CEDARBURG, WI 53012
Ozaukee County (262) 377-6933
GARY LOHAUS MD
Internal Medicine (Pulmonary Disease)
N143W6515 PIONEER RD
CEDARBURG, WI 53012
Ozaukee County (262) 377-6933
DANIEL A HAGERMAN MD
Pediatrics
N143W6515 PIONEER RD
CEDARBURG, WI 53012
Ozaukee County (262) 377-6399
EDWIN MONTGOMERY MD
Pediatrics
N143W6515 PIONEER RD
CEDARBURG, WI 53012
Ozaukee County (262) 377-6933

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 Donald Hennessy's NPI number?

The NPI number for Donald Hennessy is 1811960495. It was assigned to this individual provider in the NPPES registry on February 13, 2006.

Where is Donald Hennessy located?

Donald Hennessy practices at N143w6515 Pioneer Rd, Cedarburg, WI 53012. The listed phone number is (262) 377-6933.

What is Donald Hennessy's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Donald Hennessy enrolled in Medicare?

Yes. Donald Hennessy is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Donald Hennessy was last updated on January 16, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years 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.