Quick answers
- Does John J. Costello Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says John J. Costello 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. Costello Jr. see?
- In 2024, CMS data shows 1,039 Original Medicare patients and 4,063 services for John J. Costello Jr.. This counts Original Medicare only and measures volume, not quality.
- What is John J. Costello Jr.'s NPI number?
- 1487650743. 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. Costello 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 | 1,039 |
|---|---|
| Services billed to Medicare | 4,063 |
| Different services or procedures | 49 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Removal of cataract with insertion of prosthetic lens (66984)647 services
- Microfluid analysis of tears (83861)572 services
- Established patient complete exam of visual system (92014)498 services
- Ultrasound scan to determine eye length and lens power (76519)397 services
- Exam of visual field with extended testing (92083)251 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%
- Arthritis41%
- Diabetes34%
- Ischemic heart disease23%
- Anxiety19%
Hospitals where John J. Costello Jr. works
Medicare's Facility Affiliation Data lists John J. Costello 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.
- Community Memorial Hospital, IncHamilton, NY · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 331316
- Samaritan Medical CenterWatertown, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330157
- University Hospital S U N y Health Science CenterSyracuse, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330241
Practice locations
Addresses where John J. Costello Jr. is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 131 Main StOneida, NY 13421
- 131 Main St, Suite 201Oneida, NY 13421
- 255 Avery LnRome, NY 13441 (315) 336‑6633
- 2730 State Route 12bHamilton, NY 13346 (315) 797‑8330
- 53 Public Sq, Suite 102Watertown, NY 13601 (315) 691‑6379
Group practices
Medicare enrollment lists John J. Costello Jr. as a member of these groups (CMS data updated October 2, 2026).
- Ophthalmology Medical Service Group Inc30 clinicians in the group
- Costello Eye Physicians and Surgeons PLLC8 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Other clinicians in Ophthalmology Medical Service Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Philadelphia College Of Osteopathic Medicine |
| Graduation year | 1991 (35 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1487650743 |
| 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