John Hays, MD
NPI 1083666549 · Diagnostic Radiology Physician · Brownwood, TX
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Hays, MD is a Diagnostic Radiology Physician provider in Brownwood, TX (NPI 1083666549).
Provider details
- NPI number
- 1083666549
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- L2930 (TX)
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
4,417 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 | 758 | $8 |
| Screening 3d Breast Mammography77063 | 499 | $27 |
| Screening Mammography77067 | 497 | $34 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 328 | $9 |
| Ct Scan Head Or Brain Without Contrast70450 | 235 | $37 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 123 | $81 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-16
- Last updated
- 2009-04-08
Frequently asked questions
- What is John Hays's NPI number?
- John Hays's National Provider Identifier (NPI) is 1083666549, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Hays's specialty?
- John Hays is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Hays located?
- John Hays's practice location on file with NPPES is 531 County Road 611, Brownwood, TX 76801-0802.
- What is John Hays's phone number?
- The practice phone number listed in the NPPES registry for John Hays is (325) 784-5709.
- Does John Hays accept Medicare?
- John Hays is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Hays's NPI active?
- Yes — John Hays's NPI (1083666549) is active in the NPPES registry as of the last update on 2009-04-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.