Doctor profile · Federal record

Dr. Rebecca Deffner, NP

Family Nurse Practitioner (CMS: Nurse Practitioner) · Mosinee, WI

  • NPI 1578819256
  • Accepts Medicare
  • MIPS 83.7 / 100 · 2023
  • 14 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1881 County Trunk Xx
Mosinee, WI 54455
(715) 355-4040
Mailing address
2940 Flagstone Dr
Wausau, WI 544018374

Credentials & registration

NPPES · NUCC
NPI registered
July 2012 — 14 yrs on file
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
Wisconsin #2012007838

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1578819256. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
499
Distinct HCPCS
10
Medicare allowed
$22,750
HCPCS Description Services Patients Avg allowed
36415 Insertion of needle into vein for collection of blood sample 90 61 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 82 61 $73
99214 Established patient office or other outpatient visit, 30-39 minutes 80 61 $104
80053 Blood test, comprehensive group of blood chemicals 64 53 $10
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 39 39 $106
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test 38 36 $6
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 26 22 $8
83036 Hemoglobin a1c level 24 18 $10
G0008 Administration of influenza virus vaccine 23 23 $29
90662 Influenza vaccine split virus, preservative free 20 20 $72

In context: peer comparison

Among 1 peers in this city , average services per provider: 45. This provider delivers 11× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,194
Patients
342
Total drug cost
$12,982
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 182 48 $1,606
Levothyroxine Sodium Generic 127 28 $1,740
Amlodipine Besylate Generic 102 30 $594
Lisinopril Generic 96 27 $594
Simvastatin Generic 86 23 $377
Omeprazole Generic 81 26 $911
Metformin Hcl Generic 66 20 $544
Rosuvastatin Calcium Generic 65 24 $1,213
Losartan Potassium Generic 62 21 $590
Fluoxetine Hcl Generic 60 13 $663

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Rebecca Deffner's medical specialty?
Dr. Rebecca Deffner practices Family Nurse Practitioner in Mosinee, WI.
Where does Dr. Rebecca Deffner practice?
Dr. Rebecca Deffner practices at 1881 County Trunk Xx, Mosinee, WI 54455. Office phone: 7153554040.
What is Dr. Rebecca Deffner's NPI?
Dr. Rebecca Deffner's National Provider Identifier (NPI) is 1578819256, issued by NPPES.
Does Dr. Rebecca Deffner accept Medicare assignment?
Yes. Dr. Rebecca Deffner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Rebecca Deffner commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); 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.