Doctor profile · Federal record

Dr. Tam Diep, DO

Emergency Medicine Physician · Appleton, WI

  • NPI 1467013995
  • 7 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1818 N Meade St
Appleton, WI 549113454
(920) 731-4101
Mailing address
16 River Dr
Appleton, WI 549151215

Credentials & registration

NPPES · NUCC
NPI registered
June 2019 — 7 yrs on file
Profile last updated
July 22, 2022
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Wisconsin #22337-875

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1467013995. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
394
Distinct HCPCS
4
Medicare allowed
$38,935
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 158 150 $162
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 145 131 $8
99284 Emergency department visit with moderate level of medical decision making 66 64 $112
99291 Critical care, first 30-74 minutes 25 25 $195

In context: peer comparison

Among 8 peers in Appleton Emergency Medicine Physician, average services per provider: 101. This provider delivers 3.9× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
210
Patients
193
Total drug cost
$1,241
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 62 59 $237
Cephalexin Generic 52 51 $464
Ondansetron Odt (Ondansetron) Brand 40 39 $211
Prednisone Generic 19 18 $55
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 13 13 $114
Ciprofloxacin Hcl Generic 13 13 $148
Meloxicam Generic 11 0 $13

Frequently asked questions

Auto-generated from federal data
What is Dr. Tam Diep's medical specialty?
Dr. Tam Diep practices Emergency Medicine Physician in Appleton, WI.
Where does Dr. Tam Diep practice?
Dr. Tam Diep practices at 1818 N Meade St, Appleton, WI 549113454. Office phone: 9207314101.
What is Dr. Tam Diep's NPI?
Dr. Tam Diep's National Provider Identifier (NPI) is 1467013995, issued by NPPES.
What procedures does Dr. Tam Diep commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.