Doctor profile · Federal record

Dr. Mary Spiller, NP

Nurse Practitioner · Nurse Practitioner · Family Nurse Practitioner · New London, WI

  • NPI 1639153877
  • Accepts Medicare
  • 24 yrs in practice
  • Licensed in 2 states
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1405 Mill St
New London, WI 549612155
(920) 531-2400
Additional location
4405 Weaver Pkwy
Warrenville, IL 605553269
(630) 933-4950
fax (630) 933-4959
Mailing address
3 Neenah Ctr
Neenah, WI 549563070

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
April 25, 2023
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
363L00000X — NUCC code
State licenses (2)
Wisconsin #2144 · Illinois #209004508
Medicaid
WI #43988800

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1639153877. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
367
Distinct HCPCS
10
Medicare allowed
$29,870
HCPCS Description Services Patients Avg allowed
99497 Advance care planning, first 30 minutes 74 48 $67
99213 Established patient office or other outpatient visit, 20-29 minutes 65 59 $73
99214 Established patient office or other outpatient visit, 30-39 minutes 54 51 $104
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 36 27 $103
99350 Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes 34 28 $149
G0318 Prolonged home or residence evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by the physician or qualif 33 15 $25
99345 Residence visit for new patient with high level of medical decision making, per day, if using time, at least 75 minutes 23 23 $162
36415 Insertion of needle into vein for collection of blood sample 17 15 $8
71046 X-ray of chest, 2 views 16 14 $22
U0002 2019-ncov coronavirus, sars-cov-2/2019-ncov (covid-19), any technique, multiple types or subtypes (includes all targets), non-cdc 15 15 $50

In context: peer comparison

Among 4 peers in this city , average services per provider: 56. This provider delivers 6.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
209
Patients
197
Total drug cost
$2,322
Drug Type Claims Patients Total cost
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 35 34 $358
Cephalexin Generic 34 33 $394
Prednisone Generic 26 23 $69
Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) Brand 24 24 $320
Doxycycline Monohydrate Generic 23 21 $428
Amoxicillin Generic 18 18 $79
Ciprofloxacin Hcl Generic 14 11 $59
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 13 11 $314
Fluticasone Propionate Generic 11 11 $199
Methylprednisolone Generic 11 11 $101

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Spiller's medical specialty?
Dr. Mary Spiller practices Nurse Practitioner in New London, WI.
Where does Dr. Mary Spiller practice?
Dr. Mary Spiller practices at 1405 Mill St, New London, WI 549612155. Office phone: 9205312400.
What is Dr. Mary Spiller's NPI?
Dr. Mary Spiller's National Provider Identifier (NPI) is 1639153877, issued by NPPES.
Does Dr. Mary Spiller accept Medicare assignment?
Yes. Dr. Mary Spiller accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Spiller commonly perform?
Top Medicare-reported procedures in 2023: Advance care planning (HCPCS 99497); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.