Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Mark A. Clemence, MD

Individual provider Internal Medicine Physician · NPI 1255324216

Dr. Mark A. Clemence, MD practises Internal Medicine in Hales Corners, Wisconsin. Qualified in 1986, 40 years ago. Practices with Ascension Medical Group-Southeast Wisconsin Inc, a 555-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Wisconsin.

Years since qualifying
40
Licensed in
WI
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

6080 S 108th St
Hales Corners, WI 53130-2557 Not confirmed with CMS for 17 years — call before visiting
Phone: (414) 425-5351
Fax: (414) 529-6350
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 34043 (WI)
Infectious Disease Physician Taxonomy 207RI0200X · Licence 34043 (WI)

Record details

NPI number1255324216
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 25, 2005
Last updated in NPPESNovember 17, 2008

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesINFECTIOUS DISEASE
Medical schoolOTHER
Graduated 1986 (40 years in practice)
Group practice Ascension Medical Group-Southeast Wisconsin Inc — 555 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients282
Services billed 818 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Ascension Medical Group-Southeast Wisconsin Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 555 clinicians in the practice; 12 are shown here.