Mary Spiller, NP
NPI 1639153877 · Nurse Practitioner · New London, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Spiller, NP is a Nurse Practitioner provider in New London, WI (NPI 1639153877).
Provider details
- NPI number
- 1639153877
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 209004508 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
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
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
247 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 | 90 | $101 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 60 | $72 |
| X-Ray of Chest, 2 Views71046 | 29 | $22 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 27 | $8 |
| Inhalation Treatment for Airway Obstruction Or Sputum Production94640 | 16 | $6 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 61 | 58 |
| Cephalexin | 58 | 53 |
| Prednisone | 53 | 50 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 52 | 48 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 45 | 42 |
| Doxycycline Monohydrate | 29 | 28 |
| Amoxicillin |
Practice location
Mailing address
Additional practice locations (1)
- 4405 Weaver PkwyWarrenville, IL 60555-3269Phone: (630) 933-4950Fax: (630) 933-4959
Registry dates
- Enumerated
- 2005-12-01
- Last updated
- 2023-04-25
- Certified
- 2023-04-25
Frequently asked questions
- What is Mary Spiller's NPI number?
- Mary Spiller's National Provider Identifier (NPI) is 1639153877, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Spiller's specialty?
- Mary Spiller is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Spiller located?
- Mary Spiller's practice location on file with NPPES is 1405 Mill St, New London, WI 54961-2155.
- What is Mary Spiller's phone number?
- The practice phone number listed in the NPPES registry for Mary Spiller is (920) 531-2400.
- Does Mary Spiller accept Medicare?
- Mary Spiller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Spiller's NPI active?
- Yes — Mary Spiller's NPI (1639153877) is active in the NPPES registry as of the last update on 2023-04-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.