Doctor profile · Federal record

Dr. Darren Heesacker, MD

Emergency Medicine Physician (CMS: Emergency Medicine) · Green Bay, WI

  • NPI 1013953561
  • Accepts Medicare
  • 34 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2845 Greenbrier RD
Green Bay, WI 543116519
(920) 288-4060
fax (920) 288-4067
Mailing address
1035 Kepler Dr
Green Bay, WI 543118320

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
April 9, 2024
Year of graduation
1992 — 34 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Wisconsin #36486
Medicaid (2)
MI #104470702 · WI #32114000

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1013953561. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
300
Distinct HCPCS
5
Medicare allowed
$40,207
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 119 114 $158
99284 Emergency department visit with moderate level of medical decision making 99 97 $113
99283 Emergency department visit with low level of medical decision making 35 35 $67
99291 Critical care, first 30-74 minutes 35 35 $201
99213 Established patient office or other outpatient visit, 20-29 minutes 12 12 $74

In context: peer comparison

Among 12 peers in Green Bay Emergency Medicine Physician, average services per provider: 64. This provider delivers 4.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
215
Patients
215
Total drug cost
$1,151
Drug Type Claims Patients Total cost
Cephalexin Generic 31 31 $275
Ciprofloxacin Hcl Generic 26 26 $178
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 26 26 $128
Tramadol Hcl Generic 26 26 $46
Diclofenac Sodium Generic 21 21 $184
Ondansetron Odt (Ondansetron) Brand 21 21 $106
Prednisone Generic 19 19 $42
Cyclobenzaprine Hcl Generic 17 17 $50
Azithromycin Generic 14 14 $38
Methylprednisolone Generic 14 14 $104

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Darren Heesacker's medical specialty?
Dr. Darren Heesacker practices Emergency Medicine Physician in Green Bay, WI.
Where does Dr. Darren Heesacker practice?
Dr. Darren Heesacker practices at 2845 Greenbrier RD, Green Bay, WI 543116519. Office phone: 9202884060.
What is Dr. Darren Heesacker's NPI?
Dr. Darren Heesacker's National Provider Identifier (NPI) is 1013953561, issued by NPPES.
Does Dr. Darren Heesacker accept Medicare assignment?
Yes. Dr. Darren Heesacker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Darren Heesacker 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); Emergency department visit with low level of medical decision making (HCPCS 99283). Source: CMS Medicare Physician & Other Practitioners file.