Tam Diep, DO
NPI 1467013995 · Emergency Medicine Physician · Appleton, WI
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tam Diep, DO is a Emergency Medicine Physician provider in Appleton, WI (NPI 1467013995).
Provider details
- NPI number
- 1467013995
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 22337-875 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
356 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 148 | $8 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 114 | $159 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 63 | $110 |
| Critical Care, First 30-74 Minutes99291 | 31 | $195 |
Typical Medicare-allowed amounts for these services range $8–$195 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 66 | 64 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 59 | 59 |
| Ondansetronbrand: Ondansetron Odt | 44 | 44 |
| Prednisone | 23 | 21 |
| Ciprofloxacin Hcl | 15 | 14 |
| Oxycodone Hcl | 14 | 13 |
| Doxycycline Hyclate | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-06-25
- Last updated
- 2022-07-22
- Certified
- 2022-07-22
Frequently asked questions
- What is Tam Diep's NPI number?
- Tam Diep's National Provider Identifier (NPI) is 1467013995, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tam Diep's specialty?
- Tam Diep is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tam Diep located?
- Tam Diep's practice location on file with NPPES is 1818 N Meade St, Appleton, WI 54911-3454.
- What is Tam Diep's phone number?
- The practice phone number listed in the NPPES registry for Tam Diep is (920) 731-4101.
- Does Tam Diep accept Medicare?
- Tam Diep is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tam Diep's NPI active?
- Yes — Tam Diep's NPI (1467013995) is active in the NPPES registry as of the last update on 2022-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.