Quick answers
- Does Jan J. Kraemer accept Medicare assignment?
- Yes. Medicare's clinician data says Jan J. Kraemer 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 Jan J. Kraemer see?
- In 2024, CMS data shows 167 Original Medicare patients and 791 services for Jan J. Kraemer. This counts Original Medicare only and measures volume, not quality.
- What is Jan J. Kraemer's NPI number?
- 1851336440. 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 Jan J. Kraemer, 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 | 167 |
|---|---|
| Services billed to Medicare | 791 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level (64483)227 services
- Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level (64484)227 services
- Destruction of lower or sacral spinal facet joint nerves using imaging guidance, single facet joint (64635)76 services
- Destruction of lower or sacral spinal facet joint nerves using imaging guidance, each additional facet joint (64636)76 services
- Injection of substance into middle or upper spine canal using imaging guidance (62321)40 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%
- Diabetes69%
- Chronic kidney disease34%
- Ischemic heart disease25%
Hospitals where Jan J. Kraemer works
Medicare's Facility Affiliation Data lists Jan J. Kraemer 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.
- Presbyterian Community HospitalSan Juan, PR · Acute Care Hospital · Emergency services: listed by Medicare · CCN 400001
Practice locations
Addresses where Jan J. Kraemer is enrolled with Medicare (CMS data updated October 2, 2026).
- 365 Ave DomenechSan Juan, PR 00918 (787) 675‑0050
Specialties
- Interventional Pain Managementprimary
- Anesthesiologyalso
Find other Interventional Pain Management doctors in Puerto Rico →
Other interventional pain specialists in San Juan
Clinicians with the same Medicare primary specialty in San Juan, PR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Puerto Rico School Of Medicine |
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1851336440 |
| 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