Janet Willemain, APRN
NPI 1275120156 · Nurse Practitioner · Florence, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Janet Willemain, APRN is a Nurse Practitioner provider in Florence, MA (NPI 1275120156).
Provider details
- NPI number
- 1275120156
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Female
- Sole proprietor
- Yes
- License
- RN282651 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 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
154 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 154 | $144 |
Typical Medicare-allowed amounts for these services range $144–$144 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 359 | 105 |
| Omeprazole | 352 | 120 |
| Pantoprazole Sodium | 59 | 23 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 50 | 49 |
| Linaclotidebrand: Linzess | 18 | — |
| Lipase/Protease/Amylasebrand: Creon | 16 | — |
| Sucralfate | 15 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-12-28
- Last updated
- 2020-12-28
- Certified
- 2020-12-09
Frequently asked questions
- What is Janet Willemain's NPI number?
- Janet Willemain's National Provider Identifier (NPI) is 1275120156, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janet Willemain's specialty?
- Janet Willemain is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Janet Willemain located?
- Janet Willemain's practice location on file with NPPES is 10 Main St, Florence, MA 01062-3160.
- What is Janet Willemain's phone number?
- The practice phone number listed in the NPPES registry for Janet Willemain is (413) 586-8910.
- Does Janet Willemain accept Medicare?
- Janet Willemain is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Janet Willemain's NPI active?
- Yes — Janet Willemain's NPI (1275120156) is active in the NPPES registry as of the last update on 2020-12-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.