Quick answers
- Does Stephen D. Lockey Iii accept Medicare assignment?
- Yes. Medicare's clinician data says Stephen D. Lockey Iii 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 Stephen D. Lockey Iii see?
- In 2024, CMS data shows 174 Original Medicare patients and 2,097 services for Stephen D. Lockey Iii. This counts Original Medicare only and measures volume, not quality.
- What is Stephen D. Lockey Iii's NPI number?
- 1649269416. 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 Stephen D. Lockey Iii, 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 | 174 |
|---|---|
| Services billed to Medicare | 2,097 |
| Different services or procedures | 28 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Test for allergy using allergenic extract (95004)608 services
- Test for allergy using allergenic extract injected into skin (95024)464 services
- Professional service for preparation and provision of 1 or more antigens (95165)310 services
- Professional service for single injection of allergen (95115)180 services
- Professional service for multiple injections of allergen (95117)152 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 pressure64%
- Asthma51%
- Arthritis49%
- Anxiety30%
- Depression24%
Hospitals where Stephen D. Lockey Iii works
Medicare's Facility Affiliation Data lists Stephen D. Lockey Iii 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.
- Lancaster General HospitalLancaster, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390100
Practice locations
Addresses where Stephen D. Lockey Iii is enrolled with Medicare (CMS data updated October 2, 2026).
- 2445 Marietta AveLancaster, PA 17601
Specialties
- Allergy/Immunologyprimary
- Internal Medicinealso
Other allergist and immunologists in Lancaster
Clinicians with the same Medicare primary specialty in Lancaster, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Temple University School Of Medicine |
| Graduation year | 1963 (63 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649269416 |
| 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