Bradley Kayser, MD
NPI 1285635110 · Internal Medicine Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Bradley Kayser, MD is a Internal Medicine Physician provider in San Antonio, TX (NPI 1285635110).
Provider details
- NPI number
- 1285635110
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G6950 (TX)
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
21 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,281 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 562 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 478 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 475 | $8 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 271 | $13 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 245 | $16 |
| Hemoglobin A1c Level83036 | 214 | $10 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 91 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 263 | 68 |
| Amlodipine Besylate | 226 | 56 |
| Atorvastatin Calcium | 177 | 48 |
| Levothyroxine Sodium | 113 | 26 |
| Losartan Potassium | 98 | 23 |
| Apixabanbrand: Eliquis | 92 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$44 across 2 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
Registry dates
- Enumerated
- 2005-08-02
- Last updated
- 2010-02-03
Frequently asked questions
- What is Bradley Kayser's NPI number?
- Bradley Kayser's National Provider Identifier (NPI) is 1285635110, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bradley Kayser's specialty?
- Bradley Kayser is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Bradley Kayser located?
- Bradley Kayser's practice location on file with NPPES is 4410 Medical Dr, San Antonio, TX 78229-6306.
- What is Bradley Kayser's phone number?
- The practice phone number listed in the NPPES registry for Bradley Kayser is (210) 614-4000.
- Does Bradley Kayser accept Medicare?
- Bradley Kayser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Bradley Kayser's NPI active?
- Yes — Bradley Kayser's NPI (1285635110) is active in the NPPES registry as of the last update on 2010-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.