Quick answers
- Does Joseph W. Flanagan accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph W. Flanagan 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 Joseph W. Flanagan see?
- In 2024, CMS data shows 225 Original Medicare patients and 5,013 services for Joseph W. Flanagan. This counts Original Medicare only and measures volume, not quality.
- What is Joseph W. Flanagan's NPI number?
- 1477527828. 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 Joseph W. Flanagan, 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 | 225 |
|---|---|
| Services billed to Medicare | 5,013 |
| Different services or procedures | 24 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
Most frequent services
- Professional service for preparation and provision of 1 or more antigens (95165)2,510 services
- Professional service for multiple injections of allergen (95117)1,348 services
- Test for allergy using allergenic extract (95004)614 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)209 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)34 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 cholesterol70%
- High blood pressure65%
- Asthma50%
- Arthritis49%
- Anxiety31%
- Depression22%
Practice locations
Addresses where Joseph W. Flanagan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1550 Vestal Pkwy E, Suite 4Vestal, NY 13850 (607) 766‑0235
- 216 W Gray StElmira, NY 14901 (607) 733‑5086
- 4402 Medical Ctr Dr, Suite 402Fayetteville, NY 13066 (315) 663‑0005
- 904 E Shore DrIthaca, NY 14850 (607) 257‑6563
Group practices
Medicare enrollment lists Joseph W. Flanagan as a member of this group (CMS data updated October 2, 2026).
- Asthma and Allergy Associates PC7 clinicians in the group
Specialties
- Allergy/Immunologyprimary
- Internal Medicinealso
Other allergist and immunologists in Vestal
Clinicians with the same Medicare primary specialty in Vestal, NY — not a recommendation.
Other clinicians in Asthma and Allergy Associates PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of Ny Upstate Medical University |
| Graduation year | 1992 (34 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1477527828 |
| 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