John Impellizeri, D.O
NPI 1669466363 · Internal Medicine Physician · Mattituck, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Impellizeri, D.O is a Internal Medicine Physician provider in Mattituck, NY (NPI 1669466363).
Provider details
- NPI number
- 1669466363
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O
- Sex
- Male
- Sole proprietor
- No
- License
- 224524 (NY)
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
20 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
15 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 15 | $137 |
Typical Medicare-allowed amounts for these services range $137–$137 (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 · 77 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 375 | 138 |
| Amlodipine Besylate | 228 | 80 |
| Losartan Potassium | 190 | 71 |
| Rosuvastatin Calcium | 184 | 73 |
| Levothyroxine Sodium | 140 | 50 |
| Metformin Hcl | 136 | 48 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-08
- Last updated
- 2021-11-18
Frequently asked questions
- What is John Impellizeri's NPI number?
- John Impellizeri's National Provider Identifier (NPI) is 1669466363, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Impellizeri's specialty?
- John Impellizeri is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Impellizeri located?
- John Impellizeri's practice location on file with NPPES is 13400 Main Rd, Mattituck, NY 11952-3209.
- What is John Impellizeri's phone number?
- The practice phone number listed in the NPPES registry for John Impellizeri is (631) 298-4008.
- Does John Impellizeri accept Medicare?
- John Impellizeri is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Impellizeri's NPI active?
- Yes — John Impellizeri's NPI (1669466363) is active in the NPPES registry as of the last update on 2021-11-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.