Quick answers
- Does Mary C. Stock accept Medicare assignment?
- Yes. Medicare's clinician data says Mary C. Stock 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.
- What is Mary C. Stock's NPI number?
- 1871589127. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mary C. Stock works
Medicare's Facility Affiliation Data lists Mary C. Stock 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.
- Jefferson Health- NortheastPhiladelphia, PA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 390115
Practice locations
Addresses where Mary C. Stock is enrolled with Medicare (CMS data updated October 2, 2026).
- 1210 S Cedar Crest BlvdAllentown, PA 18103 (610) 402‑3888
- 301 Oxford Valley Rd, Suite 1000Yardley, PA 19067 (215) 481‑6873
- 400 N 17th StAllentown, PA 18104
- 700 Hawk Ridge DrHamburg, PA 19526
Group practices
Medicare enrollment lists Mary C. Stock as a member of these groups (CMS data updated October 2, 2026).
- Lehigh Valley Physician Group2,542 clinicians in the group
- Aria Health Physician Services450 clinicians in the group
- Valley Health Partners Community Health Center120 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Allentown
Clinicians with the same Medicare primary specialty in Allentown, PA — not a recommendation.
Other clinicians in Lehigh Valley Physician Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Pennsylvania State University College Of Medicine |
| Graduation year | 2001 (25 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871589127 |
| 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
- 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