Kristin Cassidy, MD
NPI 1366451411 · Internal Medicine Physician · Twin Lakes, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kristin Cassidy, MD is a Internal Medicine Physician provider in Twin Lakes, WI (NPI 1366451411).
Provider details
- NPI number
- 1366451411
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 40094 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,272 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 329 | $119 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 272 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 259 | $85 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 188 | $119 |
| Administration of Influenza Virus VaccineG0008 | 63 | $30 |
| Hemoglobin A1c Level83036 | 45 | $10 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 131 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 453 | 102 |
| Atorvastatin Calcium | 394 | 111 |
| Amlodipine Besylate | 389 | 99 |
| Omeprazole | 289 | 77 |
| Lisinopril | 231 | 60 |
| Losartan Potassium | 215 | 62 |
| Simvastatin | 209 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-07
- Last updated
- 2023-03-07
- Certified
- 2021-11-30
Frequently asked questions
- What is Kristin Cassidy's NPI number?
- Kristin Cassidy's National Provider Identifier (NPI) is 1366451411, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kristin Cassidy's specialty?
- Kristin Cassidy is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kristin Cassidy located?
- Kristin Cassidy's practice location on file with NPPES is 150 Lance Dr, Twin Lakes, WI 53181.
- What is Kristin Cassidy's phone number?
- The practice phone number listed in the NPPES registry for Kristin Cassidy is (262) 877-2124.
- Does Kristin Cassidy accept Medicare?
- Kristin Cassidy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kristin Cassidy's NPI active?
- Yes — Kristin Cassidy's NPI (1366451411) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.