Quick answers
- Does Melissa J. Tiedemann accept Medicare assignment?
- Medicare's clinician data says Melissa J. Tiedemann may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Melissa J. Tiedemann see?
- In 2024, CMS data shows 410 Original Medicare patients and 743 services for Melissa J. Tiedemann. This counts Original Medicare only and measures volume, not quality.
- What is Melissa J. Tiedemann's NPI number?
- 1306837109. 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 Melissa J. Tiedemann, 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 | 410 |
|---|---|
| Services billed to Medicare | 743 |
| Different services or procedures | 16 |
| 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)246 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)157 services
- Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) (87811)121 services
- Automated urinalysis test (81003)49 services
- Detection test by immunoassay with direct visual observation for influenza virus (87804)48 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 cholesterol75%
- High blood pressure70%
- Arthritis50%
- Ischemic heart disease35%
- Anxiety29%
- Diabetes28%
Practice locations
Addresses where Melissa J. Tiedemann is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 1049 Morris Park AveBronx, NY 10461 (929) 777‑9082
- 148 Sunrise HwyWest Islip, NY 11795 (631) 620‑3580
- 1601 3rd AveNew York, NY 10128 (646) 692‑6272
- 1601 3rd Ave, Frnt 1New York, NY 10128 (646) 692‑6272
- 339 Main StHuntington, NY 11743 (631) 470‑9000
Group practices
Medicare enrollment lists Melissa J. Tiedemann as a member of this group (CMS data updated October 2, 2026).
- Optum Urgent Care PLLC68 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Bronx
Clinicians with the same Medicare primary specialty in Bronx, NY — not a recommendation.
Other clinicians in Optum Urgent Care PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2001 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1306837109 |
| 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
- 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