Quick answers
- Does Michelle L. Jack accept Medicare assignment?
- Yes. Medicare's clinician data says Michelle L. Jack 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 Michelle L. Jack see?
- In 2024, CMS data shows 51 Original Medicare patients and 126 services for Michelle L. Jack. This counts Original Medicare only and measures volume, not quality.
- What is Michelle L. Jack's NPI number?
- 1831631779. 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 Michelle L. Jack, 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 | 51 |
|---|---|
| Services billed to Medicare | 126 |
| Different services or procedures | 20 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)28 services
- X-ray of wrist, minimum of 3 views (73110)15 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%
- Arthritis67%
- Diabetes35%
- Anxiety29%
- Chronic kidney disease27%
Hospitals where Michelle L. Jack works
Medicare's Facility Affiliation Data lists Michelle L. Jack 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.
- Peconic Bay Medical CenterRiverhead, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330107
Practice locations
Addresses where Michelle L. Jack is enrolled with Medicare (CMS data updated October 2, 2026).
- 34 Commerce AveRiverhead, NY 11901 (631) 727‑1600
- 496 County Rd, 111 Bldg BManorville, NY 11949 (631) 405‑3200
- 64 Commerce AveRiverhead, NY 11901 (631) 369‑5000
- 80 E Montauk Hwy, Suite 102Hampton Bays, NY 11946 (631) 728‑4500
- 855 Montauk HwyShirley, NY 11967 (631) 815‑1968
Group practices
Medicare enrollment lists Michelle L. Jack as a member of this group (CMS data updated October 2, 2026).
- Peconic Bay Primary Medical Care71 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Riverhead
Clinicians with the same Medicare primary specialty in Riverhead, NY — not a recommendation.
Other clinicians in Peconic Bay Primary Medical Care
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831631779 |
| 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