Doctor profile · Federal record

Dr. Mark Aasen, MD

Interventional Pain Medicine Physician (CMS: Pain Management) · Anesthesiology Physician · Greenfield, WI

  • NPI 1184609356
  • Accepts Medicare
  • MIPS 99.2 / 100 · 2023
  • 39 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4131 W. Loomis RD, Ste 300
Greenfield, WI 532212059
(414) 325-7246
fax (414) 325-3770
Mailing address
4131 W. Loomis RD., Ste 300
Greenfield, WI 532212059

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
January 29, 2014
Year of graduation
1987 — 39 yrs since
Specialty taxonomy
208VP0014X — NUCC code
State license (1)
Wisconsin #37593-020
Medicaid
WI #32234600

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1184609356. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
567
Distinct HCPCS
10
Medicare allowed
$66,733
HCPCS Description Services Patients Avg allowed
64483 Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level 84 59 $122
64635 Destruction of lower or sacral spinal facet joint nerves using imaging guidance, single facet joint 69 46 $182
64636 Destruction of lower or sacral spinal facet joint nerves using imaging guidance, each additional facet joint 61 40 $56
64493 Injection of lower or sacral spine facet joint using imaging guidance, single level 53 35 $113
27096 Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance 46 31 $96
64494 Injection of lower or sacral spine facet joint using imaging guidance, second level 46 31 $63
62323 Injection of substance into lower spine canal using imaging guidance 45 33 $92
64633 Destruction of upper or middle spinal facet joint nerves using imaging guidance, single facet joint 33 23 $181
62321 Injection of substance into middle or upper spine canal using imaging guidance 32 21 $99
63650 Insertion of spinal neurostimulator electrode array through skin 27 12 $286

In context: peer comparison

Among 1 peers in this city , average services per provider: 43. This provider delivers 13× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$616
Transactions
11
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Curonix LLC 4 $334.96
Janssen Pharmaceuticals, Inc 1 $150.00
Collegium Pharmaceutical, Inc. 5 $100.87
Nevro Corp. 1 $30.38

By nature of payment

Food and Beverage
$401
Travel and Lodging
$216

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
13
Patients
0
Total drug cost
$241
Drug Type Claims Patients Total cost
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 13 0 $241

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Aasen's medical specialty?
Dr. Mark Aasen practices Interventional Pain Medicine Physician in Greenfield, WI.
Where does Dr. Mark Aasen practice?
Dr. Mark Aasen practices at 4131 W. Loomis RD, Greenfield, WI 532212059. Office phone: 4143257246.
What is Dr. Mark Aasen's NPI?
Dr. Mark Aasen's National Provider Identifier (NPI) is 1184609356, issued by NPPES.
Does Dr. Mark Aasen accept Medicare assignment?
Yes. Dr. Mark Aasen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Aasen commonly perform?
Top Medicare-reported procedures in 2023: Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (HCPCS 64483); Destruction of lower or sacral spinal facet joint nerves using imaging guidance, single facet joint (HCPCS 64635); Destruction of lower or sacral spinal facet joint nerves using imaging guidance, each additional facet joint (HCPCS 64636). Source: CMS Medicare Physician & Other Practitioners file.