William Mehard, MD
NPI 1548293673 · Diagnostic Radiology Physician · Chesterfield, MO
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Mehard, MD is a Diagnostic Radiology Physician provider in Chesterfield, MO (NPI 1548293673).
Provider details
- NPI number
- 1548293673
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 21769 (WV)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
- Diagnostic Radiology Physician2085R0202X
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
5 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
7,046 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 1,588 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 742 | $37 |
| X-Ray of Chest, 2 Views71046 | 381 | $10 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 316 | $79 |
| Ct Scan of Upper Spine Without Contrast72125 | 264 | $44 |
| X-Ray of Abdomen, 1 View74018 | 263 | $8 |
| Ct Scan of Abdomen and Pelvis Without Contrast |
Practice location
Mailing address
Additional practice locations (4)
- 10010 Kennerly RdSaint Louis, MO 63128-2106Phone: (314) 525-4492Fax: (314) 525-4481
- 202 Rosemont AveWebster Groves, MO 63119-2413Phone: (636) 675-0322
- 751 Liberty StMeadville, PA 16335-2559Phone: (314) 238-5260Fax: (314) 821-1833
- 301 Tyson AveParis, TN 38242-4544Phone: (314) 238-5260Fax: (314) 821-1833
Registry dates
- Enumerated
- 2006-07-09
- Last updated
- 2025-07-24
- Certified
- 2025-07-24
Frequently asked questions
- What is William Mehard's NPI number?
- William Mehard's National Provider Identifier (NPI) is 1548293673, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Mehard's specialty?
- William Mehard is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Mehard located?
- William Mehard's practice location on file with NPPES is 16091 Swingley Ridge Rd Ste 100, Chesterfield, MO 63017-2056.
- What is William Mehard's phone number?
- The practice phone number listed in the NPPES registry for William Mehard is (314) 238-5260.
- Does William Mehard accept Medicare?
- William Mehard is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Mehard's NPI active?
- Yes — William Mehard's NPI (1548293673) is active in the NPPES registry as of the last update on 2025-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.