Brian Ayuste, M.D.
NPI 1104003458 · Internal Medicine Physician · Granada Hills, CA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Ayuste, M.D. is a Internal Medicine Physician provider in Granada Hills, CA (NPI 1104003458).
Provider details
- NPI number
- 1104003458
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A99851 (CA)
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
18 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
5,108 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 1,125 | $123 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, Each Additional 20 Minutes99458 | 1,073 | $43 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 | 818 | $54 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 458 | $17 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 419 | $371 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 55 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydralazine Hcl | 266 | 79 |
| Tamsulosin Hcl | 166 | 51 |
| Furosemide | 138 | 44 |
| Amlodipine Besylate | 132 | 45 |
| Allopurinol | 118 | 43 |
| Nifedipinebrand: Nifedipine Er | 108 | 22 |
| Finerenonebrand: Kerendia | 103 | 22 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,391 across 58 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
- 2008-01-29
- Last updated
- 2014-01-28
Frequently asked questions
- What is Brian Ayuste's NPI number?
- Brian Ayuste's National Provider Identifier (NPI) is 1104003458, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Ayuste's specialty?
- Brian Ayuste is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Ayuste located?
- Brian Ayuste's practice location on file with NPPES is 10605 Balboa Blvd, Granada Hills, CA 91344-6342.
- What is Brian Ayuste's phone number?
- The practice phone number listed in the NPPES registry for Brian Ayuste is (818) 366-4626.
- Does Brian Ayuste accept Medicare?
- Brian Ayuste is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Ayuste's NPI active?
- Yes — Brian Ayuste's NPI (1104003458) is active in the NPPES registry as of the last update on 2014-01-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.