Doctor profile · Federal record

Dr. Erin Lark

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

  • NPI 1871983288
  • Accepts Medicare
  • 12 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
840 W Irving Park RD, Suite 301
Chicago, IL 606133011
(872) 206-2813
Additional location
601 John St Ste M-352
Kalamazoo, MI 490075341
(269) 641-7140
Mailing address
Po Box 3276
Evansville, IN 477313276

Credentials & registration

NPPES · NUCC
NPI registered
January 2015 — 11 yrs on file
Profile last updated
January 2, 2026
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State licenses (2)
Illinois #209-012493 · Michigan #4704347823

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1871983288. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
85
Distinct HCPCS
2
Medicare allowed
$11,302
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 46 43 $155
99284 Emergency department visit with moderate level of medical decision making 39 34 $107

In context: peer comparison

Among 231 peers in Chicago Family Nurse Practitioner, average services per provider: 226. This provider delivers 0.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
11
Patients
11
Total drug cost
$24
Drug Type Claims Patients Total cost
Oxycodone Hcl Generic 11 11 $24

Frequently asked questions

Auto-generated from federal data
What is Dr. Erin Lark's medical specialty?
Dr. Erin Lark practices Family Nurse Practitioner in Chicago, IL.
Where does Dr. Erin Lark practice?
Dr. Erin Lark practices at 840 W Irving Park RD, Chicago, IL 606133011. Office phone: 8722062813.
What is Dr. Erin Lark's NPI?
Dr. Erin Lark's National Provider Identifier (NPI) is 1871983288, issued by NPPES.
Does Dr. Erin Lark accept Medicare assignment?
Yes. Dr. Erin Lark accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Erin Lark commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.