Nicholas Houstis, MD
NPI 1366600900 · Cardiovascular Disease Physician · Boston, MA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicholas Houstis, MD is a Cardiovascular Disease Physician provider in Boston, MA (NPI 1366600900).
Provider details
- NPI number
- 1366600900
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 247671 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
437 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 35 Minutes99232 | 221 | $82 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 53 | $84 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 39 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 34 | $140 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 33 | $196 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 57 | 16 |
| Apixabanbrand: Eliquis | 34 | — |
| Atorvastatin Calcium | 32 | 11 |
| Spironolactone | 21 | — |
| Furosemide | 15 | — |
| Losartan Potassium | 15 | — |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-05-30
- Last updated
- 2016-06-09
Frequently asked questions
- What is Nicholas Houstis's NPI number?
- Nicholas Houstis's National Provider Identifier (NPI) is 1366600900, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Houstis's specialty?
- Nicholas Houstis is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Nicholas Houstis located?
- Nicholas Houstis's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2621.
- What is Nicholas Houstis's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Houstis is (617) 726-9292.
- Does Nicholas Houstis accept Medicare?
- Nicholas Houstis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicholas Houstis's NPI active?
- Yes — Nicholas Houstis's NPI (1366600900) is active in the NPPES registry as of the last update on 2016-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.