Quick answers
- Does Zackery F. Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Zackery F. Johnson 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 Zackery F. Johnson see?
- In 2024, CMS data shows 153 Original Medicare patients and 243 services for Zackery F. Johnson. This counts Original Medicare only and measures volume, not quality.
- What is Zackery F. Johnson's NPI number?
- 1336767748. 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 Zackery F. Johnson, 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 | 153 |
|---|---|
| Services billed to Medicare | 243 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 67 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)147 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)52 services
- Emergency department visit with moderate level of medical decision making (99284)20 services
- Emergency department visit with high level of medical decision making (99285)11 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%
- Arthritis59%
- Anxiety53%
- Ischemic heart disease42%
- Diabetes41%
Practice locations
Addresses where Zackery F. Johnson is enrolled with Medicare (CMS data updated October 2, 2026).
- 4 Willow PtHattiesburg, MS 39402 (601) 582‑6069
Group practices
Medicare enrollment lists Zackery F. Johnson as a member of this group (CMS data updated October 2, 2026).
- MS Pain and Migraine6 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Hattiesburg
Clinicians with the same Medicare primary specialty in Hattiesburg, MS — not a recommendation.
Other clinicians in MS Pain and Migraine
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336767748 |
| 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