Timothy Alder, MD
NPI 1922207059 · Diagnostic Radiology Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Alder, MD is a Diagnostic Radiology Physician provider in Knoxville, TN (NPI 1922207059).
Provider details
- NPI number
- 1922207059
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 13394C (WY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
18 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
6,175 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 | 1,367 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 1,030 | $38 |
| Mri Scan of Leg Joint Without Contrast73721 | 356 | $60 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 281 | $80 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 262 | $83 |
| Mri Scan of Arm Joint Without Contrast73221 | 259 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-07-18
- Last updated
- 2021-04-05
- Certified
- 2021-04-05
Frequently asked questions
- What is Timothy Alder's NPI number?
- Timothy Alder's National Provider Identifier (NPI) is 1922207059, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Alder's specialty?
- Timothy Alder is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Alder located?
- Timothy Alder's practice location on file with NPPES is 2001 Laurel Ave, Knoxville, TN 37916-1810.
- What is Timothy Alder's phone number?
- The practice phone number listed in the NPPES registry for Timothy Alder is (865) 766-6870.
- Does Timothy Alder accept Medicare?
- Timothy Alder is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Alder's NPI active?
- Yes — Timothy Alder's NPI (1922207059) is active in the NPPES registry as of the last update on 2021-04-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.