Donald Grunz, M.D.
NPI 1629031141 · Diagnostic Radiology Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donald Grunz, M.D. is a Diagnostic Radiology Physician provider in Saint Louis, MO (NPI 1629031141).
Provider details
- NPI number
- 1629031141
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 101906 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
2,658 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 | 698 | $8 |
| X-Ray of Chest, 2 Views71046 | 181 | $10 |
| X-Ray of Abdomen, 1 View74018 | 171 | $8 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 133 | $82 |
| X-Ray of Shoulder, Minimum of 2 Views73030 | 104 | $9 |
| X-Ray of Foot, Minimum of 3 Views73630 | 91 | $8 |
| Ct Scan Head Or Brain Without Contrast |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-07
- Last updated
- 2017-05-31
Frequently asked questions
- What is Donald Grunz's NPI number?
- Donald Grunz's National Provider Identifier (NPI) is 1629031141, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Grunz's specialty?
- Donald Grunz is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Grunz located?
- Donald Grunz's practice location on file with NPPES is 615 S New Ballas Rd, Saint Louis, MO 63141-8221.
- What is Donald Grunz's phone number?
- The practice phone number listed in the NPPES registry for Donald Grunz is (314) 251-6031.
- Does Donald Grunz accept Medicare?
- Donald Grunz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donald Grunz's NPI active?
- Yes — Donald Grunz's NPI (1629031141) is active in the NPPES registry as of the last update on 2017-05-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.