Doctor profile · Federal record

Dr. Debra Knapp, APNP

Nurse Practitioner · Greenfield, WI

  • NPI 1376570374
  • 20 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4131 W Loomis RD, Suite 300
Greenfield, WI 532212057
(414) 325-7246
fax (414) 325-3770

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
June 2, 2016
Specialty taxonomy
363L00000X — NUCC code
State license (1)
Wisconsin #460033

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1376570374. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
13
Distinct HCPCS
1
Medicare allowed
$849
HCPCS Description Services Patients Avg allowed
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 13 12 $65

In context: peer comparison

Among 11 peers in Greenfield Nurse Practitioner, average services per provider: 44. This provider delivers 0.3× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Debra Knapp's medical specialty?
Dr. Debra Knapp practices Nurse Practitioner in Greenfield, WI.
Where does Dr. Debra Knapp practice?
Dr. Debra Knapp practices at 4131 W Loomis RD, Greenfield, WI 532212057. Office phone: 4143257246.
What is Dr. Debra Knapp's NPI?
Dr. Debra Knapp's National Provider Identifier (NPI) is 1376570374, issued by NPPES.
What procedures does Dr. Debra Knapp commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with straightforward or low level of medical decision making (HCPCS 99221). Source: CMS Medicare Physician & Other Practitioners file.