Quick answers
- Does Karl R. Blum accept Medicare assignment?
- Yes. Medicare's clinician data says Karl R. Blum 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 Karl R. Blum see?
- In 2024, CMS data shows 878 Original Medicare patients and 36,696 services for Karl R. Blum. This counts Original Medicare only and measures volume, not quality.
- What is Karl R. Blum's NPI number?
- 1154361285. 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 Karl R. Blum, 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 | 878 |
|---|---|
| Services billed to Medicare | 36,696 |
| Different services or procedures | 84 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Injection, methylprednisolone acetate, 1 mg (J1010)32,281 services
- Aspiration and/or injection of fluid from large joint (20610)996 services
- X-ray of knee, 4 or more views (73564)533 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)378 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)314 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%
- Arthritis75%
- Ischemic heart disease40%
- Diabetes39%
- Anxiety31%
Hospitals where Karl R. Blum works
Medicare's Facility Affiliation Data lists Karl R. Blum 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 Medical CenterToms River, NJ · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 310041
Practice locations
Addresses where Karl R. Blum is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 1944 Route 33Neptune, NJ 07753 (732) 776‑3787
- 1944 Route 33, Suite 203Neptune, NJ 07753 (732) 613‑9144
- 1945 Route 33Neptune, NJ 07753
- 30 Prospect AveHackensack, NJ 07601
- 3600 Route 66, Fl 3Neptune, NJ 07753
Group practices
Medicare enrollment lists Karl R. Blum as a member of these groups (CMS data updated October 2, 2026).
- Hackensack Meridian Health Medical Group - Specialty Care PC1,922 clinicians in the group
- Ocean Orthopedic Associates, P.A.12 clinicians in the group
Specialties
- Sports Medicineprimary
- Orthopedic Surgeryalso
Other sports medicine doctors in New Jersey
Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.
Other clinicians in Hackensack Meridian Health Medical Group - Specialty Care PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rutgers New Jersey Medical School |
| Graduation year | 1990 (36 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154361285 |
| 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