William Mcconnell, MD
NPI 1548215205 · Internal Medicine Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Mcconnell, MD is a Internal Medicine Physician provider in Baltimore, MD (NPI 1548215205).
Provider details
- NPI number
- 1548215205
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- D42129 (MD)
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
20 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
2,919 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 590 | $127 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 465 | $3 |
| Urinalysis, Manual Test81002 | 274 | $3 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 273 | $178 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 215 | $14 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 210 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 77 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 276 | 84 |
| Rosuvastatin Calcium | 257 | 73 |
| Metoprolol Succinate | 161 | 49 |
| Losartan Potassium | 147 | 40 |
| Levothyroxine Sodium | 140 | 37 |
| Lisinopril | 140 | 37 |
| Simvastatin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-23
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Mcconnell's NPI number?
- William Mcconnell's National Provider Identifier (NPI) is 1548215205, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Mcconnell's specialty?
- William Mcconnell is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Mcconnell located?
- William Mcconnell's practice location on file with NPPES is 6301 N Charles St, Baltimore, MD 21212.
- What is William Mcconnell's phone number?
- The practice phone number listed in the NPPES registry for William Mcconnell is (410) 372-0300.
- Does William Mcconnell accept Medicare?
- William Mcconnell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Mcconnell's NPI active?
- Yes — William Mcconnell's NPI (1548215205) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.