Quick answers
- Does Richard Iammatteo accept Medicare assignment?
- Yes. Medicare's clinician data says Richard Iammatteo accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Richard Iammatteo see?
- In 2024, CMS data shows 152 Original Medicare patients and 1,089 services for Richard Iammatteo. This counts Original Medicare only and measures volume, not quality.
- What is Richard Iammatteo's NPI number?
- 1154327492. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Richard Iammatteo, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 152 |
|---|---|
| Services billed to Medicare | 1,089 |
| Different services or procedures | 20 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)528 services
- Detection test by immunoassay with direct visual observation for influenza virus (87804)142 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)130 services
- Test to measure expiratory airflow and volume (94010)57 services
- Insertion of needle into vein for collection of blood sample (36415)56 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Diabetes48%
- Ischemic heart disease26%
- Anxiety20%
Hospitals where Richard Iammatteo works
Medicare's Facility Affiliation Data lists Richard Iammatteo at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- North Shore University HospitalManhasset, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330106
Practice locations
Addresses where Richard Iammatteo is enrolled with Medicare (CMS data updated October 2, 2026).
- 400 S Oyster Bay Rd, Suite 302Hicksville, NY 11801 (516) 433‑1190
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Hicksville
Clinicians with the same Medicare primary specialty in Hicksville, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1990 (36 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154327492 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians