Timothy Machen, MD
NPI 1013303353 · Diagnostic Radiology Physician · Atlanta, GA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Machen, MD is a Diagnostic Radiology Physician provider in Atlanta, GA (NPI 1013303353).
Provider details
- NPI number
- 1013303353
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
5,509 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) |
|---|---|---|
| Screening Mammography77067 | 1,535 | $34 |
| Screening 3d Breast Mammography77063 | 1,531 | $27 |
| X-Ray of Chest, 1 View71045 | 505 | $8 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 434 | $27 |
| Diagnostic Mammography of 1 Breast77065 | 349 | $37 |
| Limited Ultrasound Scan of 1 Breast76642 | 304 | $36 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-14
- Last updated
- 2020-03-09
- Certified
- 2020-03-09
Frequently asked questions
- What is Timothy Machen's NPI number?
- Timothy Machen's National Provider Identifier (NPI) is 1013303353, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Machen's specialty?
- Timothy Machen is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Machen located?
- Timothy Machen's practice location on file with NPPES is 100 Woodruff Cir Ne Ste 327, Atlanta, GA 30322-1020.
- What is Timothy Machen's phone number?
- The practice phone number listed in the NPPES registry for Timothy Machen is (225) 757-4070.
- Does Timothy Machen accept Medicare?
- Timothy Machen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Machen's NPI active?
- Yes — Timothy Machen's NPI (1013303353) is active in the NPPES registry as of the last update on 2020-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.