Frederick Dreyer, MD
NPI 1639161128 · Diagnostic Radiology Physician · Greenville, SC
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frederick Dreyer, MD is a Diagnostic Radiology Physician provider in Greenville, SC (NPI 1639161128).
Provider details
- NPI number
- 1639161128
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 28431 (SC)
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
4,174 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 | 1,353 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 688 | $37 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 287 | $81 |
| X-Ray of Abdomen, 1 View74018 | 213 | $8 |
| Ct Scan of Blood Vessels of Head With Contrast70496 | 134 | $77 |
| Ct Scan of Blood Vessels of Neck With Contrast70498 | 131 | $74 |
| Ct Scan of Blood Vessels of Chest With Contrast |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-19
- Last updated
- 2021-05-18
- Certified
- 2021-05-18
Frequently asked questions
- What is Frederick Dreyer's NPI number?
- Frederick Dreyer's National Provider Identifier (NPI) is 1639161128, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Dreyer's specialty?
- Frederick Dreyer is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Frederick Dreyer located?
- Frederick Dreyer's practice location on file with NPPES is 1210 W Faris Rd, Greenville, SC 29605-4444.
- What is Frederick Dreyer's phone number?
- The practice phone number listed in the NPPES registry for Frederick Dreyer is (864) 522-1800.
- Does Frederick Dreyer accept Medicare?
- Frederick Dreyer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frederick Dreyer's NPI active?
- Yes — Frederick Dreyer's NPI (1639161128) is active in the NPPES registry as of the last update on 2021-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.