Quick answers
- Does Carl Mills Ii accept Medicare assignment?
- Yes. Medicare's clinician data says Carl Mills Ii 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 Carl Mills Ii see?
- In 2024, CMS data shows 920 Original Medicare patients and 4,054 services for Carl Mills Ii. This counts Original Medicare only and measures volume, not quality.
- What is Carl Mills Ii's NPI number?
- 1033110747. 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 Carl Mills Ii, 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 | 920 |
|---|---|
| Services billed to Medicare | 4,054 |
| Different services or procedures | 51 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)809 services
- Manual urinalysis test with examination using microscope, non-automated (81000)744 services
- Ultrasound measurement of bladder capacity after voiding (51798)474 services
- Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)125 services
- Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)103 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%
- Arthritis47%
- Ischemic heart disease47%
- Diabetes37%
- Chronic kidney disease36%
Hospitals where Carl Mills Ii works
Medicare's Facility Affiliation Data lists Carl Mills Ii 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.
- Good Samaritan Hospital Medical CenterWest Islip, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330286
- John T Mather Memorial Hospital of Port JeffersonPort Jefferson, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330185
- Long Island Community HospitalPatchogue, NY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 330141
- St Charles HospitalPort Jefferson, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330246
- Suny/Stony Brook University HospitalStony Brook, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330393
Practice locations
Addresses where Carl Mills Ii is enrolled with Medicare (CMS data updated October 2, 2026).
- 635 Belle Terre Rd, Suite 201Port Jefferson Station, NY 11777 (631) 509‑4802
Group practices
Medicare enrollment lists Carl Mills Ii as a member of this group (CMS data updated October 2, 2026).
- CHS Physician Partners PC743 clinicians in the group
Specialties
- Urologyprimary
Other urologists in Port Jefferson Station
Clinicians with the same Medicare primary specialty in Port Jefferson Station, NY — not a recommendation.
Other clinicians in CHS Physician Partners PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | George Washington University School Of Medicine |
| Graduation year | 1975 (51 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1033110747 |
| 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