Doctor profile · Federal record

Dr. Jennifer Hemmelgarn, CNP

Family Nurse Practitioner (CMS: Nurse Practitioner) · Family Nurse Practitioner · Naperville, IL

  • NPI 1720394208
  • Accepts Medicare
  • 16 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1220 Hobson RD, Suite 104
Naperville, IL 605408139
(630) 646-7880
fax (630) 646-5610

Credentials & registration

NPPES · NUCC
NPI registered
August 2010 — 16 yrs on file
Profile last updated
September 8, 2014
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State licenses (2)
Illinois #209.011496 · Ohio #COA.11742-NP

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1720394208. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
185
Distinct HCPCS
5
Medicare allowed
$18,573
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 86 60 $103
99213 Established patient office or other outpatient visit, 20-29 minutes 54 39 $73
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 23 23 $104
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 11 11 $281
G0009 Administration of pneumococcal vaccine 11 11 $29

In context: peer comparison

Among 24 peers in Naperville Family Nurse Practitioner, average services per provider: 103. This provider delivers 1.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$549
Transactions
35
Manufacturers
12
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 18 $253.24
GlaxoSmithKline, LLC. 5 $82.11
Lilly USA, LLC 2 $41.30
AstraZeneca Pharmaceuticals Lp 2 $28.16
Eisai INC. 1 $25.45
iRhythm Technologies, INC. 1 $19.01
Salix Pharmaceuticals, A Division of Bausch Health US, LLC 1 $18.11
Novo Nordisk INC 1 $17.94
Takeda Pharmaceuticals U.S.A., INC. 1 $17.40
E.R. Squibb & Sons, L.L.C. 1 $17.01
Merck Sharp & Dohme LLC 1 $15.38
Shield Therapeutics INC 1 $13.64

By nature of payment

Food and Beverage
$549

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,249
Patients
363
Total drug cost
$17,475
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 209 64 $2,387
Amlodipine Besylate Generic 147 41 $1,003
Omeprazole Generic 114 31 $1,347
Levothyroxine Sodium Generic 103 34 $1,925
Lisinopril Generic 95 28 $692
Metformin Hcl Generic 79 23 $783
Bupropion Xl (Bupropion Hcl) Brand 63 17 $2,841
Cyclobenzaprine Hcl Generic 63 16 $369
Carvedilol Generic 62 15 $537
Gabapentin Generic 62 14 $658

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Jennifer Hemmelgarn's medical specialty?
Dr. Jennifer Hemmelgarn practices Family Nurse Practitioner in Naperville, IL.
Where does Dr. Jennifer Hemmelgarn practice?
Dr. Jennifer Hemmelgarn practices at 1220 Hobson RD, Naperville, IL 605408139. Office phone: 6306467880.
What is Dr. Jennifer Hemmelgarn's NPI?
Dr. Jennifer Hemmelgarn's National Provider Identifier (NPI) is 1720394208, issued by NPPES.
Does Dr. Jennifer Hemmelgarn accept Medicare assignment?
Yes. Dr. Jennifer Hemmelgarn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jennifer Hemmelgarn commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.