Doctor profile · Federal record

Dr. Geraldine Holtz, NP

Nurse Practitioner · Family Nurse Practitioner · McHenry, IL

  • NPI 1518411081
  • Accepts Medicare
  • MIPS 91.3 / 100 · 2023
  • 10 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
4309 W Medical Center Dr Ste B305
McHenry, IL 600508418
(847) 802-7400
Additional location
10350 Haligus RD Ste C
Huntley, IL 601429545
fax (847) 802-7399

Credentials & registration

NPPES · NUCC
NPI registered
August 2016 — 10 yrs on file
Profile last updated
September 3, 2020
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
363L00000X — NUCC code
State licenses (2)
Illinois #209014862 · Illinois #209.014862

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1518411081. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
196
Distinct HCPCS
2
Medicare allowed
$14,039
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 161 110 $66
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 35 28 $99

In context: peer comparison

Among 17 peers in McHenry Nurse Practitioner, average services per provider: 112. This provider delivers 1.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
277
Patients
127
Total drug cost
$138,070
Drug Type Claims Patients Total cost
Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) Brand 46 18 $45,380
Prednisone Generic 44 39 $146
Anoro Ellipta (Umeclidinium Brm/Vilanterol Tr) Brand 42 23 $33,713
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 32 24 $1,018
Stiolto Respimat (Tiotropium Br/Olodaterol Hcl) Brand 29 0 $21,698
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 23 23 $167
Spiriva Respimat (Tiotropium Bromide) Brand 19 0 $11,388
Incruse Ellipta (Umeclidinium Bromide) Brand 16 0 $9,226
Breo Ellipta (Fluticasone/Vilanterol) Brand 14 0 $10,330
Symbicort (Budesonide/Formoterol Fumarate) Brand 12 0 $5,003

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Geraldine Holtz's medical specialty?
Dr. Geraldine Holtz practices Nurse Practitioner in McHenry, IL.
Where does Dr. Geraldine Holtz practice?
Dr. Geraldine Holtz practices at 4309 W Medical Center Dr Ste B305, McHenry, IL 600508418. Office phone: 8478027400.
What is Dr. Geraldine Holtz's NPI?
Dr. Geraldine Holtz's National Provider Identifier (NPI) is 1518411081, issued by NPPES.
Does Dr. Geraldine Holtz accept Medicare assignment?
Yes. Dr. Geraldine Holtz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Geraldine Holtz commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.