Charles Waisbren, MD
NPI 1750481206 · Internal Medicine Physician · Wauwatosa, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Waisbren, MD is a Internal Medicine Physician provider in Wauwatosa, WI (NPI 1750481206).
Provider details
- NPI number
- 1750481206
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 25111 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
10,853 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 631 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 597 | $120 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 481 | $13 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total)80048 | 478 | $8 |
| Vitamin D-3 Level82306 | 458 | $29 |
| Urine Microalbumin (protein) Level82043 | 438 | $6 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 137 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,108 | 305 |
| Losartan Potassium | 664 | 188 |
| Levothyroxine Sodium | 623 | 161 |
| Omeprazole | 459 | 128 |
| Metoprolol Succinate | 440 | 130 |
| Amlodipine Besylate | 355 | 105 |
| Dapagliflozin Propanediol |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,517 across 83 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-25
- Last updated
- 2016-05-10
Frequently asked questions
- What is Charles Waisbren's NPI number?
- Charles Waisbren's National Provider Identifier (NPI) is 1750481206, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Waisbren's specialty?
- Charles Waisbren is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Waisbren located?
- Charles Waisbren's practice location on file with NPPES is 201 N Mayfair Rd, Wauwatosa, WI 53226-4216.
- What is Charles Waisbren's phone number?
- The practice phone number listed in the NPPES registry for Charles Waisbren is (414) 771-5900.
- Does Charles Waisbren accept Medicare?
- Charles Waisbren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Waisbren's NPI active?
- Yes — Charles Waisbren's NPI (1750481206) is active in the NPPES registry as of the last update on 2016-05-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.