Quick answers
- Does Karyn B. Lockhart accept Medicare assignment?
- Yes. Medicare's clinician data says Karyn B. Lockhart 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 Karyn B. Lockhart see?
- In 2024, CMS data shows 323 Original Medicare patients and 1,485 services for Karyn B. Lockhart. This counts Original Medicare only and measures volume, not quality.
- What is Karyn B. Lockhart's NPI number?
- 1588112791. 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 Karyn B. Lockhart, 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 | 323 |
|---|---|
| Services billed to Medicare | 1,485 |
| Different services or procedures | 7 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)1,388 services
- Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)61 services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)13 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 cholesterol72%
- Alzheimer's disease or dementia71%
- Depression70%
- Anxiety68%
- Arthritis55%
Practice locations
Addresses where Karyn B. Lockhart is enrolled with Medicare (CMS data updated October 2, 2026).
- 11106 CHRISTUS HlsSan Antonio, TX 78251 (210) 672‑6190
- 201 Williams Ward RdSpringtown, TX 76082 (954) 939‑5000
- 5000 Fawn Meadow CirSan Antonio, TX 78240 (210) 696‑9744
Group practices
Medicare enrollment lists Karyn B. Lockhart as a member of these groups (CMS data updated October 2, 2026).
- Applebaum Physiatry PLLC128 clinicians in the group
- Questcare Matrix PLLC40 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in San Antonio
Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.
Other clinicians in Applebaum Physiatry PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588112791 |
| 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
- 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