Nancy L. Lassa, RN
- Medicare patients, 2024
- 184
- Part D claims, 2024
- 4,725
- MIPS score, 2024
- 88
- Hospital affiliations
- 1
- Medical groups
- 2
- Practice address
- 11430 N Port Washington Rd, Mequon, WI 53092
- Practice phone
- Call (414) 955-5990
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The Medical College of Wisconsin, Inc.
Mequon, Wisconsin
Find Nancy Lassa's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Nancy L. Lassa is a nurse practitioner in Mequon, Wisconsin
Nancy Lassa practices at The Medical College of Wisconsin, Inc. in Mequon, Wisconsin.
Nancy Lassa's NPI, 1487808598, was assigned on November 17, 2008. Nancy Lassa holds Wisconsin license 5507-33.
- NPI
- 1487808598NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4981830346
- NPI enumeration date
- November 17, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (414) 955-5990
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Nancy L. Lassa practices at The Medical College of Wisconsin, Inc. in Mequon, Wisconsin
Nancy Lassa's primary practice is The Medical College of Wisconsin, Inc., at 11430 N Port Washington Rd, Mequon, WI 53092 in Ozaukee County. The practice phone is (414) 955-5990.
- The Medical College of Wisconsin, Inc.11430 N Port Washington Rd, Mequon, WI 53092 · Ozaukee CountyPhone(414) 955-5990
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Nancy L. Lassa is affiliated with 3 sites of care and 2 medical groups
Nancy Lassa's primary practice is The Medical College of Wisconsin, Inc. in Mequon, Wisconsin. Nancy Lassa is also affiliated with Froedtert Hospital. The medical group on file is Froedtert & the Medical College of Wisconsin Community Physicians. Dmand AI also links Nancy Lassa to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Nancy L. Lassa's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Nancy Lassa practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Medical College of Wisconsin, Inc. | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Nancy L. Lassa is one of 3,198 nurse practitioners in Wisconsin
Nurse practitioner is Nancy Lassa's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Nancy Lassa is licensed in Wisconsin.
Specialties and state licenses
- Nurse practitioner, WisconsinPrimary
Nurse practitioners near Nancy Lassa
Counts of nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Nancy L. Lassa treated 184 Medicare patients in 2024, average age 65
CMS counts 184 Medicare patients who saw Nancy Lassa in 2024. The largest group is under 65, with 84 patients. 75% of them have arthritis, and 74% have high blood pressure. 27% are also on Medicaid. Their average risk score is 1.41, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Nancy Lassa's median patient age at 68, with 57% women.
Nancy Lassa's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Nancy Lassa's Medicare patients by sex, 2024
- Women11361%
- Men7139%
Chronic conditions among Nancy Lassa's Medicare patients, 2024
- Arthritis75%
- High blood pressure74%
- High cholesterol59%
- Mood disorders47%
- Anxiety43%
- Depression40%
- Diabetes34%
- Chronic kidney disease25%
Share of Medicare patients with each condition. A patient can have several.
Nancy Lassa's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Nancy L. Lassa wrote 4,725 Medicare Part D claims in 2024
In 2024, Nancy Lassa wrote 4,725 Medicare Part D claims for 524 patients. 95% of them were for generic drugs.
Nancy Lassa's Part D claims by kind of drug, 2024
- Generic4,485 claims95%
- Brand-name240 claims5%
Drug classes CMS tracks in Nancy Lassa's Part D claims, 2024
- Opioids63%2,959 of 4,725 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Nancy L. Lassa scored 88 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for Nancy Lassa for performance year 2024, reported as part of a group. Nancy Lassa accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Nancy Lassa as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Nancy Lassa's MIPS scores, performance year 2024
- 88of 100Final score
- 82.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 77of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Sources for Nancy L. Lassa's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Nancy L. Lassa
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Nancy L. Lassa's NPI number?
Nancy L. Lassa's NPI number is 1487808598. It was assigned on November 17, 2008, and it is active in the NPI Registry.
What does Nancy L. Lassa specialize in?
Nancy L. Lassa is a nurse practitioner in Mequon, Wisconsin. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Nancy L. Lassa practice?
Nancy Lassa practices at 11430 N Port Washington Rd, Mequon, WI 53092. Nancy Lassa's primary practice is The Medical College of Wisconsin, Inc. in Mequon, Wisconsin. Dmand AI also links Nancy Lassa to 1 group practice or clinic and 1 medical group.
What is Nancy L. Lassa's office phone number?
The practice phone on file for Nancy Lassa is (414) 955-5990.
What is Nancy L. Lassa's medical license number?
Nancy Lassa holds Wisconsin license 5507-33.
Which hospitals is Nancy L. Lassa affiliated with?
Nancy Lassa is affiliated with Froedtert Hospital.
What medical group is Nancy L. Lassa part of?
Nancy Lassa is linked to Froedtert & the Medical College of Wisconsin Community Physicians. Dmand AI links Nancy Lassa to 1 more medical group.
Does Nancy L. Lassa accept Medicare?
Yes. CMS lists Nancy Lassa as accepting Medicare assignment.
Does Nancy L. Lassa offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Nancy Lassa as offering telehealth services.
What is Nancy L. Lassa's MIPS score?
Nancy Lassa's MIPS final score for performance year 2024 is 88 out of 100, reported as part of a group.
How many Medicare patients does Nancy L. Lassa see?
CMS counts 184 Medicare patients who saw Nancy Lassa in 2024, with an average age of 65.
How long has Nancy L. Lassa been practicing?
Nancy Lassa graduated from medical school in 2013, 13 years ago.
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