John Davis, MD
NPI 1003858127 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Houston, TX
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Davis, MD is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Houston, TX (NPI 1003858127).
Provider details
- NPI number
- 1003858127
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 10503 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
2,053 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) |
|---|---|---|
| Ultrasound Evaluation of Blood Vessel With Review By Radiologist, Each Additional Vessel37253 | 264 | $146 |
| Ultrasound of Leg Arteries Or Artery Grafts93925 | 264 | $210 |
| Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970 | 166 | $162 |
| Ultrasonic Guidance for Blood Vessel Access76937 | 137 | $33 |
| Ultrasound Evaluation of Blood Vessel With Review By Radiologist, Initial Vessel37252 | 135 | $787 |
| Removal of Plaque in Artery of Leg, Initial Vessel37229 | 119 | $6,703 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clopidogrel Bisulfatebrand: Clopidogrel | 80 | 33 |
| Rivaroxabanbrand: Xarelto | 29 | 16 |
| Methylprednisolone | 26 | 20 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$27,222 across 117 records (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)
- 18955 N Memorial Dr Ste 240Humble, TX 77338-4271Phone: (936) 441-1010
- 9201 Pinecroft DrShenandoah, TX 77380-3222Phone: (936) 441-1010Fax: (936) 441-1010
Registry dates
- Enumerated
- 2006-06-12
- Last updated
- 2018-12-27
Frequently asked questions
- What is John Davis's NPI number?
- John Davis's National Provider Identifier (NPI) is 1003858127, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Davis's specialty?
- John Davis is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is John Davis located?
- John Davis's practice location on file with NPPES is 1315 St Joseph Pkwy Ste 1004, Houston, TX 77002-8231.
- What is John Davis's phone number?
- The practice phone number listed in the NPPES registry for John Davis is (936) 441-1010.
- Does John Davis accept Medicare?
- John Davis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Davis's NPI active?
- Yes — John Davis's NPI (1003858127) is active in the NPPES registry as of the last update on 2018-12-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.