Leslie Ann Stefanowicz, NP
- Medicare patients, 2024
- 128
- Part D claims, 2024
- 1,192
- Hospital affiliations
- 1
- Industry payments
- $2,406
- Medical groups
- 2
- Practice address
- 35 Pearl St, Brockton, MA 02301
- Practice phone
- Call (508) 584-6300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Asthma & Allergy Physicians
Brockton, Massachusetts
Find Leslie Stefanowicz'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.
Leslie Ann Stefanowicz is a family nurse practitioner in Brockton, Massachusetts
Leslie Stefanowicz practices at Asthma & Allergy Physicians in Brockton, Massachusetts.
Leslie Stefanowicz's NPI, 1639159783, was assigned on January 17, 2006. Leslie Stefanowicz holds Massachusetts license 233927.
- NPI
- 1639159783NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789597543
- NPI enumeration date
- January 17, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (508) 584-6300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Leslie Ann Stefanowicz practices at Asthma & Allergy Physicians in Brockton, Massachusetts
Leslie Stefanowicz's primary practice is Asthma & Allergy Physicians, at 35 Pearl St, Brockton, MA 02301 in Plymouth County. The practice phone is (508) 584-6300.
- Asthma & Allergy Physicians35 Pearl St, Brockton, MA 02301 · Plymouth CountyPhone(508) 584-6300
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Leslie Ann Stefanowicz is affiliated with 4 sites of care and 2 medical groups
Leslie Stefanowicz's primary practice is Asthma & Allergy Physicians in Brockton, Massachusetts. Leslie Stefanowicz is also affiliated with Charlton Memorial Hospital. The medical group on file is Asthma & Allergy Physicians. Dmand AI also links Leslie Stefanowicz to 2 more group practices and clinics 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 Leslie Ann Stefanowicz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Leslie Stefanowicz practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Asthma & Allergy Physicians | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Leslie Ann Stefanowicz is one of 3,644 family nurse practitioners in Massachusetts
Family is Leslie Stefanowicz's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Leslie Stefanowicz is licensed in Massachusetts.
Specialties and state licenses
- Family nurse practitioner, MassachusettsPrimary
Family nurse practitioners near Leslie Stefanowicz
Counts of family 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
Leslie Ann Stefanowicz treated 128 Medicare patients in 2024, average age 69
CMS counts 128 Medicare patients who saw Leslie Stefanowicz in 2024. The largest group is 65 to 74, with 63 patients. 73% of them have high cholesterol, and 70% have high blood pressure. 26% are also on Medicaid. Their average risk score is 0.94, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Leslie Stefanowicz's median patient age at 26, with 67% women.
Leslie Stefanowicz's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Leslie Stefanowicz's Medicare patients by sex, 2024
- Women10078%
- Men2822%
Chronic conditions among Leslie Stefanowicz's Medicare patients, 2024
- High cholesterol73%
- High blood pressure70%
- Asthma59%
- Arthritis45%
- Mood disorders42%
- Anxiety41%
- Depression34%
- Diabetes24%
Share of Medicare patients with each condition. A patient can have several.
Leslie Stefanowicz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 26
Patient panel by sex, all payers
- Women67%
- Men31%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Leslie Ann Stefanowicz wrote 1,192 Medicare Part D claims in 2024
In 2024, Leslie Stefanowicz wrote 1,192 Medicare Part D claims for 282 patients. 51% of them were for generic drugs.
Leslie Stefanowicz's Part D claims by kind of drug, 2024
- Generic608 claims51%
- Brand-name584 claims49%
Drug classes CMS tracks in Leslie Stefanowicz's Part D claims, 2024
- Antibiotics4%51 of 1,192 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
Leslie Ann Stefanowicz offers telehealth to Medicare patients
Leslie Stefanowicz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Leslie Stefanowicz as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Leslie Ann Stefanowicz received $2,406 in industry payments in 2025
CMS Open Payments shows 73 general payments to Leslie Stefanowicz from 17 drug and device companies in 2025. Food and beverage make up the largest share, 75% of the total. Regeneron Pharmaceuticals, Inc. paid the most, $747.
General payments to Leslie Stefanowicz by kind, 2025 to 2025
- Food and beverage$1,80875%
- Speaker and faculty fees$31513%
- Consulting fees$2109%
- Education$743%
Companies that paid Leslie Stefanowicz the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Leslie Ann Stefanowicz'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) |
| Industry payments | Open Payments (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 Leslie Ann Stefanowicz
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Leslie Ann Stefanowicz's NPI number?
Leslie Ann Stefanowicz's NPI number is 1639159783. It was assigned on January 17, 2006, and it is active in the NPI Registry.
What does Leslie Ann Stefanowicz specialize in?
Leslie Ann Stefanowicz is a family nurse practitioner in Brockton, Massachusetts. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Leslie Ann Stefanowicz practice?
Leslie Stefanowicz practices at 35 Pearl St, Brockton, MA 02301. Leslie Stefanowicz's primary practice is Asthma & Allergy Physicians in Brockton, Massachusetts. Dmand AI also links Leslie Stefanowicz to 2 group practices and clinics and 1 medical group.
What is Leslie Ann Stefanowicz's office phone number?
The practice phone on file for Leslie Stefanowicz is (508) 584-6300.
What is Leslie Ann Stefanowicz's medical license number?
Leslie Stefanowicz holds Massachusetts license 233927.
Which hospitals is Leslie Ann Stefanowicz affiliated with?
Leslie Stefanowicz is affiliated with Charlton Memorial Hospital.
What medical group is Leslie Ann Stefanowicz part of?
Leslie Stefanowicz is linked to Asthma & Allergy Physicians. Dmand AI links Leslie Stefanowicz to 1 more medical group.
Does Leslie Ann Stefanowicz accept Medicare?
Yes. CMS lists Leslie Stefanowicz as accepting Medicare assignment.
Does Leslie Ann Stefanowicz offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Leslie Stefanowicz as offering telehealth services.
How many Medicare patients does Leslie Ann Stefanowicz see?
CMS counts 128 Medicare patients who saw Leslie Stefanowicz in 2024, with an average age of 69.
Has Leslie Ann Stefanowicz received payments from drug or device companies?
CMS Open Payments shows $2,406 in general payments to Leslie Stefanowicz from 17 companies from 2025 to 2025. The largest total came from Regeneron Pharmaceuticals, Inc.
How long has Leslie Ann Stefanowicz been practicing?
Leslie Stefanowicz graduated from medical school in 2000, 26 years ago.
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