Eric Isselbacher, MD
NPI 1225003940 · Cardiovascular Disease Physician · Boston, MA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eric Isselbacher, MD is a Cardiovascular Disease Physician provider in Boston, MA (NPI 1225003940).
Provider details
- NPI number
- 1225003940
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- 75008 (MA)
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
2,902 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 Report93000 | 923 | $16 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 502 | $195 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 307 | $139 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 294 | $71 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 211 | $82 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Valsartan | 51 | 24 |
| Metoprolol Succinate | 40 | 17 |
| Atorvastatin Calcium | 39 | 20 |
| Rosuvastatin Calcium | 27 | 13 |
| Losartan Potassium | 19 | — |
| Ezetimibe | 17 | — |
| Apixabanbrand: Eliquis | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$26 across 1 record (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
- 2006-02-17
- Last updated
- 2007-07-08
Frequently asked questions
- What is Eric Isselbacher's NPI number?
- Eric Isselbacher's National Provider Identifier (NPI) is 1225003940, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eric Isselbacher's specialty?
- Eric Isselbacher is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Eric Isselbacher located?
- Eric Isselbacher's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2696.
- What is Eric Isselbacher's phone number?
- The practice phone number listed in the NPPES registry for Eric Isselbacher is (617) 724-1994.
- Does Eric Isselbacher accept Medicare?
- Eric Isselbacher is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eric Isselbacher's NPI active?
- Yes — Eric Isselbacher's NPI (1225003940) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.