Matthew P. Mardiney Sr., MD

Medicare activity in 2024

Official CMS public-use data for Matthew P. Mardiney Sr., 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. Injection, omalizumab, 5 mg (J2357)37,727 services
2. Test for allergy using allergenic extract (95004)6,318 services
3. Professional service for preparation and provision of 1 or more antigens (95165)4,479 services
4. Professional service for single injection of allergen (95115)2,372 services
5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)1,882 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 cholesterol75%
• High blood pressure70%
• Arthritis54%
• Asthma38%
• Anxiety26%
• Ischemic heart disease24%

Hospitals where Matthew P. Mardiney Sr. works

Medicare's Facility Affiliation Data lists Matthew P. Mardiney Sr. 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.

• WellSpan York HospitalYork, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390046

Practice locations

Addresses where Matthew P. Mardiney Sr. is enrolled with Medicare (CMS data updated October 2, 2026).

• 1300 York Rd, Suite 30dLutherville Timonium, MD 21093 (443) 519‑2128
• 2225 Old Emmorton Rd, Suite 111Bel Air, MD 21015 (443) 987‑6998

Group practices

Medicare enrollment lists Matthew P. Mardiney Sr. as a member of this group (CMS data updated October 2, 2026).

• Matthew P Mardiney MD PC4 clinicians in the group

Specialties

• Allergy/Immunologyprimary

Find other Allergy/Immunology doctors in Maryland →

Other allergist and immunologists in Maryland

Clinicians with the same Medicare primary specialty in Maryland — not a recommendation.

• Yung Hao H. Pung, MD
• Carla M. Ward, MD
• Mark D. Scarupa, MD
• Sally J. Bailey, MD
• Danielle Harrison, MD
• Shalla H. Khan, MD
• Saba Samee, MD
• Pradeep Simlote, MD

All allergist and immunologists in Maryland →

Other clinicians in Matthew P Mardiney MD PC

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

• Robbin E. Witkowski, NP
• Andrea B. Sebo, NP
• Kristen L. Jubb, PA

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