Peter Johnson, M.D.
NPI 1407948763 · Hematology & Oncology Physician · Waukesha, WI
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Johnson, M.D. is a Hematology & Oncology Physician provider in Waukesha, WI (NPI 1407948763).
Provider details
- NPI number
- 1407948763
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- L8751 (TX)
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
19 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
604 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 259 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 217 | $90 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 62 | $134 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 37 | $168 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 29 | $61 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Letrozole | 131 | 45 |
| Exemestane | 112 | 37 |
| Apixabanbrand: Eliquis | 107 | 33 |
| Prochlorperazine Maleate | 79 | 51 |
| Anastrozole | 76 | 24 |
| Hydroxyurea | 42 | — |
| Dexamethasone | 41 | 22 |
| Olanzapine | 30 | 18 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-28
- Last updated
- 2012-01-20
Frequently asked questions
- What is Peter Johnson's NPI number?
- Peter Johnson's National Provider Identifier (NPI) is 1407948763, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Johnson's specialty?
- Peter Johnson is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Johnson located?
- Peter Johnson's practice location on file with NPPES is 721 American Ave Ste 108, Waukesha, WI 53188-5071.
- What is Peter Johnson's phone number?
- The practice phone number listed in the NPPES registry for Peter Johnson is (262) 928-5350.
- Does Peter Johnson accept Medicare?
- Peter Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Johnson's NPI active?
- Yes — Peter Johnson's NPI (1407948763) is active in the NPPES registry as of the last update on 2012-01-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.