Jeffrey Breneisen, MD
NPI 1629058615 · Cardiovascular Disease Physician · Fairfield, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Breneisen, MD is a Cardiovascular Disease Physician provider in Fairfield, CA (NPI 1629058615).
Provider details
- NPI number
- 1629058615
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- G86677 (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
20 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
4,019 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 950 | $145 |
| Evaluation of Implantable Heart and Blood Vessel Monitoring System, Remote Up to 30 Days93297 | 500 | $72 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 366 | $238 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 361 | $73 |
| Evaluation of Single, Dual, Multiple Lead Or Leadless Pacemaker System Or Implantable Defibrillator System, Remote Up to 90 Days93296 | 245 | $27 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 317 | 111 |
| Atorvastatin Calcium | 281 | 102 |
| Carvedilol | 278 | 90 |
| Amlodipine Besylate | 231 | 77 |
| Apixabanbrand: Eliquis | 208 | 71 |
| Lisinopril | 176 | 59 |
| Empagliflozin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,426 across 149 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
- 2006-01-18
- Last updated
- 2015-07-31
Frequently asked questions
- What is Jeffrey Breneisen's NPI number?
- Jeffrey Breneisen's National Provider Identifier (NPI) is 1629058615, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Breneisen's specialty?
- Jeffrey Breneisen is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey Breneisen located?
- Jeffrey Breneisen's practice location on file with NPPES is 1860 Pennsylvania Ave, Fairfield, CA 94533-3590.
- What is Jeffrey Breneisen's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Breneisen is (707) 646-4400.
- Does Jeffrey Breneisen accept Medicare?
- Jeffrey Breneisen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffrey Breneisen's NPI active?
- Yes — Jeffrey Breneisen's NPI (1629058615) is active in the NPPES registry as of the last update on 2015-07-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.