Nicholas Nassikas, M.D.
NPI 1598143273 · Pulmonary Disease Physician · Providence, RI
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicholas Nassikas, M.D. is a Pulmonary Disease Physician provider in Providence, RI (NPI 1598143273).
Provider details
- NPI number
- 1598143273
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 289959 (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
11 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
323 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 135 | $220 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 73 | $17 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 62 | $154 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 17 | $190 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 14 | $82 |
| Insertion of Non-Tunneled Central Venous Tube for Infusion (5 Years Or Older) |
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) |
|---|---|
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 21 |
| Montelukast Sodium | 21 |
| Tiotropium Bromidebrand: Spiriva Respimat | 18 |
| Mometasone/Formoterolbrand: Dulera | 16 |
| Omeprazole | 16 |
| Umeclidinium Brm/Vilanterol Trbrand: Anoro Ellipta | 15 |
| Budesonide/Formoterol Fumaratebrand: Symbicort | 15 |
| Umeclidinium Bromidebrand: Incruse Ellipta | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-05-13
- Last updated
- 2021-09-13
- Certified
- 2021-09-13
Frequently asked questions
- What is Nicholas Nassikas's NPI number?
- Nicholas Nassikas's National Provider Identifier (NPI) is 1598143273, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Nassikas's specialty?
- Nicholas Nassikas is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Nicholas Nassikas located?
- Nicholas Nassikas's practice location on file with NPPES is 593 Eddy St, Providence, RI 02903-4923.
- What is Nicholas Nassikas's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Nassikas is (401) 793-2930.
- Does Nicholas Nassikas accept Medicare?
- Nicholas Nassikas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicholas Nassikas's NPI active?
- Yes — Nicholas Nassikas's NPI (1598143273) is active in the NPPES registry as of the last update on 2021-09-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.