John Holbrook, M.D.
NPI 1932261161 · Diagnostic Radiology Physician · Atlanta, GA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Holbrook, M.D. is a Diagnostic Radiology Physician provider in Atlanta, GA (NPI 1932261161).
Provider details
- NPI number
- 1932261161
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 65600 (GA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,411 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Ct Scan Head Or Brain Without Contrast70450 | 295 | $38 |
| X-Ray of Chest, 1 View71045 | 157 | $8 |
| Ct Scan of Blood Vessels of Neck With Contrast70498 | 129 | $77 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 126 | $68 |
| Ct Scan of Blood Vessels of Head With Contrast70496 | 122 | $80 |
| Mri Scan of Brain Before and After Contrast70553 | 114 | $105 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 6325 W Johns XingDuluth, GA 30097-5746Phone: (678) 474-7000
- 6325 W Johns XingDuluth, GA 30097-5746Phone: (678) 474-7000
Registry dates
- Enumerated
- 2006-12-14
- Last updated
- 2019-05-03
Frequently asked questions
- What is John Holbrook's NPI number?
- John Holbrook's National Provider Identifier (NPI) is 1932261161, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Holbrook's specialty?
- John Holbrook is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Holbrook located?
- John Holbrook's practice location on file with NPPES is 1000 Johnson Ferry Rd, Atlanta, GA 30342.
- What is John Holbrook's phone number?
- The practice phone number listed in the NPPES registry for John Holbrook is (404) 851-6323.
- Does John Holbrook accept Medicare?
- John Holbrook is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Holbrook's NPI active?
- Yes — John Holbrook's NPI (1932261161) is active in the NPPES registry as of the last update on 2019-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.