Quick answers
- Does John J. Flanagan Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says John J. Flanagan Jr. 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 John J. Flanagan Jr. see?
- In 2024, CMS data shows 428 Original Medicare patients and 1,281 services for John J. Flanagan Jr.. This counts Original Medicare only and measures volume, not quality.
- What is John J. Flanagan Jr.'s NPI number?
- 1902898208. 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 John J. Flanagan Jr., 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 | 428 |
|---|---|
| Services billed to Medicare | 1,281 |
| Different services or procedures | 87 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)208 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)194 services
- Ultrasound study of arm and leg arteries (93922)148 services
- Ultrasound of both sides of head and neck blood flow (93880)102 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)92 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%
- Ischemic heart disease58%
- Arthritis48%
- Chronic kidney disease46%
- Diabetes37%
Hospitals where John J. Flanagan Jr. works
Medicare's Facility Affiliation Data lists John J. Flanagan Jr. 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.
- Chester County HospitalWest Chester, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390179
- Paoli HospitalPaoli, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390153
- Phoenixville HospitalPhoenixville, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390127
- Pottstown HospitalPottstown, PA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 390123
Practice locations
Addresses where John J. Flanagan Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 1450 E Boot Rd, Suite 700aWest Chester, PA 19380 (610) 430‑8272
Group practices
Medicare enrollment lists John J. Flanagan Jr. as a member of this group (CMS data updated October 2, 2026).
- Vascular Surgical Specialists PLLC6 clinicians in the group
Specialties
- Vascular Surgeryprimary
- General Surgeryalso
- Thoracic Surgeryalso
Other vascular surgeons in West Chester
Clinicians with the same Medicare primary specialty in West Chester, PA — not a recommendation.
Other clinicians in Vascular Surgical Specialists PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Pennsylvania |
| Graduation year | 1985 (41 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) | 1902898208 |
| 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