Nicolas Shammas, M.D.
NPI 1922087857 · Interventional Cardiology Physician · Davenport, IA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicolas Shammas, M.D. is a Interventional Cardiology Physician provider in Davenport, IA (NPI 1922087857).
Provider details
- NPI number
- 1922087857
- Entity type
- Individual
- Primary specialty
- Interventional Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 27303 (IA)
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
4,252 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 | 461 | $117 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 408 | $13 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 320 | $7 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 279 | $159 |
| Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970 | 279 | $100 |
| Rubidium Rb-82, Diagnostic, Per Study Dose, Up to 60 Millicuries |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 63 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 733 | 229 |
| Atorvastatin Calcium | 669 | 200 |
| Apixabanbrand: Eliquis | 438 | 101 |
| Amlodipine Besylate | 410 | 126 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 404 | 141 |
| Losartan Potassium | 395 | 136 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$47,695 across 59 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
- 2006-01-10
- Last updated
- 2021-02-10
- Certified
- 2021-02-10
Frequently asked questions
- What is Nicolas Shammas's NPI number?
- Nicolas Shammas's National Provider Identifier (NPI) is 1922087857, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicolas Shammas's specialty?
- Nicolas Shammas is listed in the NPPES registry with a primary specialty of Interventional Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Nicolas Shammas located?
- Nicolas Shammas's practice location on file with NPPES is 1236 E Rusholme St, Davenport, IA 52803-2473.
- What is Nicolas Shammas's phone number?
- The practice phone number listed in the NPPES registry for Nicolas Shammas is (563) 324-2992.
- Does Nicolas Shammas accept Medicare?
- Nicolas Shammas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicolas Shammas's NPI active?
- Yes — Nicolas Shammas's NPI (1922087857) is active in the NPPES registry as of the last update on 2021-02-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.