Mark R Fitzsimmons, MD
Mark R Fitzsimmons, MD practices as part of a group family medicine physician practice in Port Washington, WI. A Medical College of Wisconsin graduate since 1991, he brings 35+ years of experience. He regularly sees Medicare patients with high cholesterol, hypertension, and arthritis (per CMS claims data).
At a glance
- Prescribes opioids less than 51% of reporting doctors in Wisconsin
- Uses generic medications more than 68% of reporting doctors in Wisconsin
- Virtual visits available — no app or travel required
Older · 1636dNPPES updated 2021-11-18 · verify NPI on CMS · Verify license at Wisconsin Medical Examining Board
Contact & Location
Practice Location
1475 W Grand Ave, Port Washington, WI 53074
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
Opioid Rx
↓ Lower = better0.55%
Wisconsin avg: 4.3 · US avg: 5.1
✓ Higher than most doctors nationally(-4.5 pts)
Typical range among reporting doctors in Wisconsin0.55% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better89.8%
Wisconsin avg: 82.2 · US avg: 82.8
✓ Higher than most doctors nationally(+7 pts)
Typical range among reporting doctors in WisconsinHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
224
Unique beneficiaries
Standard volumePrescription Recipients
532
Patients prescribed
Prescriptions Written
7,469
Total claims
Total Medicare drug cost: $640k
Percentile rankings compared against 779 reporting peers in Wisconsin.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages High Cholesterol, Hypertension, and Arthritis.
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+4%) — a focus area for this doctor
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-10%) — less common here
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↓ Fewer patients than average (-3%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-8%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-7%) — less common here
Conditions affecting emotional state, including depression and bipolar disorder
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↓ Fewer patients than average (-10%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$125 received from industry
1 transaction reported in 2024 ·Low tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Mark R Fitzsimmons's NPI.
Patient Reviews
No patient reviews yet. If you've seen Mark R Fitzsimmons, your feedback helps other patients.
Review PolicyAll feedback is moderated before publishing. We verify reviewer identity where possible and enforce a one-review-per-provider policy. Full guidelines →
Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1991
Medical College of Wisconsin
Board certified · Nov 17, 2021
Self-reported via NPPES
35 years in practice
Senior practitioner
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Taxonomy: 207Q00000X
Education & Training
Medical College of Wisconsin (Class of 1991)
Mailing address
3003 W Good Hope Rd, Milwaukee, WI 53209-2042
Differs from practice location
Virtual Family Medicine Care With Mark R Fitzsimmons
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Mark R Fitzsimmons for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Port Washington required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Mark R Fitzsimmons
NPI records show Dr. Fitzsimmons as active with telehealth listed in Port Washington, WI. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (262) 268-5100.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
Is this your profile?
Verify credentials, update practice details, and manage telehealth.
Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.
Contact Mark R Fitzsimmons
Practice Location
1475 W Grand Ave, Port Washington, WI 53074
Mailing Address
3003 W Good Hope Rd, Milwaukee, WI 53209-2042
This is a provider directory. Contact the office directly to schedule appointments.
Related Providers