Nikolaus Hjelm, MD

Medicare activity in 2024

Official CMS public-use data for Nikolaus Hjelm, 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.

Most frequent services

1. Test for allergy using allergenic extract (95004)856 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)164 services
3. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)126 services
4. Test to assess middle ear function (92567)119 services
5. Comprehensive hearing and speech recognition test (92557)117 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%
• Arthritis55%
• Anxiety32%
• Ischemic heart disease31%
• Diabetes28%

Hospitals where Nikolaus Hjelm works

Medicare's Facility Affiliation Data lists Nikolaus Hjelm 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.

• Virtua Mount Holly HospitalMount Holly, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 310057
• West Jersey HospitalVoorhees, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 310022

Practice locations

Addresses where Nikolaus Hjelm is enrolled with Medicare (CMS data updated October 2, 2026).

• 100 Bowman DrVoorhees, NJ 08043 (856) 762‑1940
• 132 Grove St, Suite AHaddonfield, NJ 08033 (856) 354‑2211
• 406 Lippincott DrMarlton, NJ 08053

Group practices

Medicare enrollment lists Nikolaus Hjelm as a member of this group (CMS data updated October 2, 2026).

• Advocare, LLC386 clinicians in the group

Specialties

• Otolaryngologyprimary

Find other Otolaryngology doctors in New Jersey →

Other ENT doctors in Voorhees

Clinicians with the same Medicare primary specialty in Voorhees, NJ — not a recommendation.

• Luke Y. Kim, MD
• Colin T. Huntley, MD
• David Rosen, MD
• Joseph R. Spiegel, MD
• Richard Sterling, MD
• Vir Patel, MD
• Naomi D. Gregory, DO
• Ivy Maina, MD

All ENT doctors in Voorhees →

Other clinicians in Advocare, LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Shannon N. Wenter, PA
• Diana Huang, MD
• Adam J. Lyons, MD
• Jamie L. Whitesell, PA
• Erin McArdle, MD
• Michael A. Hassman, MD

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians