Joseph Blatt, MD
NPI 1235242165 · Clinical Cardiac Electrophysiology Physician · La Jolla, CA
Enrolled with Medicare as Practitioner - Cardiac Electrophysiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Blatt, MD is a Clinical Cardiac Electrophysiology Physician provider in La Jolla, CA (NPI 1235242165).
Provider details
- NPI number
- 1235242165
- Entity type
- Individual
- Primary specialty
- Clinical Cardiac Electrophysiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A114521 (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
19 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
17 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 17 | $8 |
Typical Medicare-allowed amounts for these services range $8–$8 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dabigatran Etexilate Mesylatebrand: Pradaxa | 188 | 67 |
| Flecainide Acetate | 121 | 42 |
| Sotalol Hclbrand: Sotalol | 94 | 40 |
| Metoprolol Tartrate | 75 | 33 |
| Metoprolol Succinate | 63 | 22 |
| Apixabanbrand: Eliquis | 42 | 16 |
| Diltiazem Hclbrand: Diltiazem 24hr Er (cd) |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$468 across 8 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
- 2006-08-16
- Last updated
- 2021-11-22
Frequently asked questions
- What is Joseph Blatt's NPI number?
- Joseph Blatt's National Provider Identifier (NPI) is 1235242165, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Blatt's specialty?
- Joseph Blatt is listed in the NPPES registry with a primary specialty of Clinical Cardiac Electrophysiology Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Blatt located?
- Joseph Blatt's practice location on file with NPPES is 9834 Genesee Ave, La Jolla, CA 92037-1223.
- What is Joseph Blatt's phone number?
- The practice phone number listed in the NPPES registry for Joseph Blatt is (858) 334-2400.
- Does Joseph Blatt accept Medicare?
- Joseph Blatt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Blatt's NPI active?
- Yes — Joseph Blatt's NPI (1235242165) is active in the NPPES registry as of the last update on 2021-11-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.