William Bader, M.D.
NPI 1871563411 · Internal Medicine Physician · Carnegie, PA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Bader, M.D. is a Internal Medicine Physician provider in Carnegie, PA (NPI 1871563411).
Provider details
- NPI number
- 1871563411
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD-018581E (PA)
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
20 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
1,046 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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 167 | $123 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 146 | $122 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 97 | $47 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 75 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 68 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 68 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 127 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 473 | 116 |
| Levothyroxine Sodium | 316 | 69 |
| Lisinopril | 300 | 82 |
| Gabapentin | 246 | 41 |
| Amlodipine Besylate | 218 | 56 |
| Metformin Hcl | 192 | 48 |
| Simvastatin | 176 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$966 across 54 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
- 2006-01-25
- Last updated
- 2023-11-01
- Certified
- 2023-11-01
Frequently asked questions
- What is William Bader's NPI number?
- William Bader's National Provider Identifier (NPI) is 1871563411, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Bader's specialty?
- William Bader is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Bader located?
- William Bader's practice location on file with NPPES is 102 Broadway St Ste 100, Carnegie, PA 15106-2486.
- What is William Bader's phone number?
- The practice phone number listed in the NPPES registry for William Bader is (412) 279-0320.
- Does William Bader accept Medicare?
- William Bader is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Bader's NPI active?
- Yes — William Bader's NPI (1871563411) is active in the NPPES registry as of the last update on 2023-11-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.