Dr. Johnson B. Walker, MD
- Medicare services, 2024
- 458
- Medicare patients, 2024
- 219
- Part D claims, 2024
- 23
- Hospital affiliations
- 2
- Industry payments
- $2,261
- Practice address
- 555 E Cheves St Box 8700, Florence, SC 29506
- Practice phone
- Call (843) 777-2900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Walker's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Johnson B. Walker is a trauma surgery physician in Florence, South Carolina
Dr. Walker practices at McLeod Regional Medical Center Florence in Florence, South Carolina, part of McLeod Health.
Dr. Walker's NPI, 1720347024, was assigned on May 8, 2012. Dr. Walker graduated from California University Of Science And Medicine in 2022. Dr. Walker holds South Carolina license 51915.
- NPI
- 1720347024NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204074560
- NPI enumeration date
- May 8, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (843) 777-2900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Johnson B. Walker practices at McLeod Regional Medical Center Florence in Florence, South Carolina
Dr. Walker's primary practice is McLeod Regional Medical Center Florence, at 555 E Cheves St Box 8700, Florence, SC 29506 in Florence County. The practice phone is (843) 777-2900.
- McLeod Regional Medical Center Florence555 E Cheves St Box 8700, Florence, SC 29506 · Florence CountyPhone(843) 777-2900
Source: Dmand AI Affiliation Data
Dr. Johnson B. Walker is affiliated with 3 sites of care and 1 medical group
Dr. Walker's primary practice is McLeod Regional Medical Center Florence in Florence, South Carolina, part of McLeod Health. Dr. Walker is also affiliated with McLeod Health Clarendon. The medical group on file is McLeod Physician Associates. Dmand AI also links Dr. Walker to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Johnson B. Walker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walker practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| McLeod Regional Medical Center Florence | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across McLeod Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Johnson B. Walker is one of 7 trauma surgery physicians in South Carolina
Trauma surgery is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 2086S0127X. Dr. Walker is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Walker's licenses on file in 2 states: South Carolina and Kentucky.
Specialties and state licenses
- Trauma surgery, South CarolinaPrimary
- Kentucky license
Trauma surgery physicians near Dr. Walker
Counts of trauma surgery physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Johnson B. Walker billed Medicare for 458 services in 2024
CMS data shows 458 Medicare services from Dr. Walker across 5 procedure codes in 2024, for 219 Medicare patients. Medicare paid $36,237 for them.
Dr. Walker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4852024: 4586%
Where Dr. Walker's Medicare services took place, 2024
- In an office296%
- In a facility42994%
Dr. Walker's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Walker and other trauma surgery physicians in South Carolina.
Source: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data
Dr. Johnson B. Walker treated 219 Medicare patients in 2024, average age 73
CMS counts 219 Medicare patients who saw Dr. Walker in 2024. The largest group is 65 to 74, with 76 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 2.52, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Walker's median patient age at 70, with 51% women.
Dr. Walker's Medicare patients by age, 2024
Dr. Walker's Medicare patients by sex, 2024
- Women10849%
- Men11151%
Chronic conditions among Dr. Walker's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Diabetes54%
- Chronic kidney disease45%
- Heart failure43%
- Ischemic heart disease42%
- Anxiety41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Walker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women51%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Johnson B. Walker wrote 23 Medicare Part D claims in 2024
In 2024, Dr. Walker wrote 23 Medicare Part D claims for 14 patients. 100% of them were for generic drugs. They cover 1 drug, with $246 in total drug cost. In 2019, CMS named 38 claims across 1 drug.
Dr. Walker's most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 382020: 3411%
Drugs named by CMS: 1 in 2020, 1 in 2019.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Johnson B. Walker takes part in Medicare
Dr. Walker accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Johnson B. Walker received $2,261 in industry payments from 2017 to 2025
CMS Open Payments shows 38 general payments to Dr. Walker from 19 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Musculoskeletal Transplant Foundation Inc. paid the most, $1,579.
General payments to Dr. Walker by program year, 2017 to 2025
Companies that paid Dr. Walker the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Johnson B. Walker graduated from California University Of Science And Medicine
Dr. Walker graduated from California University Of Science And Medicine in 2022.
- Medical school
- Board certified in surgery
- Board certified in surgical critical care
Source: Dmand AI Professional Profile Data
Dr. Johnson B. Walker accepts plans from 20 insurance carriers
Dr. Walker is in network with 20 carriers, including Elevance, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Molina
- Aetna
- Aspirus Health Plan
- Blue Cross Blue Shield of Massachusetts
- +12 more carriersWith a free account
Plan types Dr. Walker accepts, by number of carriers
- PPO11
- Medicare9
- HMO8
- Medicaid4
- POS4
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Johnson B. Walker's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Johnson B. Walker
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Johnson B. Walker's NPI number?
Dr. Johnson B. Walker's NPI number is 1720347024. It was assigned on May 8, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Johnson B. Walker?
Dr. Johnson B. Walker is a trauma surgery physician in Florence, South Carolina. The primary specialty in the NPI Registry is Trauma Surgery Physician (taxonomy code 2086S0127X).
Where does Dr. Johnson B. Walker practice?
Dr. Walker practices at 555 E Cheves St Box 8700, Florence, SC 29506. Dr. Walker's primary practice is McLeod Regional Medical Center Florence in Florence, South Carolina, part of McLeod Health. Dmand AI also links Dr. Walker to 1 group practice or clinic.
What is Dr. Johnson B. Walker's office phone number?
The practice phone on file for Dr. Walker is (843) 777-2900.
What is Dr. Johnson B. Walker's medical license number?
Dr. Walker holds South Carolina license 51915, one of the licenses on file in 2 states.
Which states has Dr. Johnson B. Walker been licensed in?
Dmand AI has state licenses on file for Dr. Walker in South Carolina (2018 to 2027) and Kentucky (2017 to 2019).
Which hospitals is Dr. Johnson B. Walker affiliated with?
Dr. Walker practices at McLeod Regional Medical Center Florence in Florence, South Carolina. Dr. Walker is also affiliated with McLeod Health Clarendon.
What medical group is Dr. Johnson B. Walker part of?
Dr. Walker is linked to McLeod Physician Associates.
Does Dr. Johnson B. Walker accept Medicare?
Yes. CMS data shows Dr. Walker billed Medicare for 458 services in 2024, and Dr. Walker accepts Medicare assignment.
How many Medicare patients does Dr. Johnson B. Walker see?
CMS counts 219 Medicare patients who saw Dr. Walker in 2024, with an average age of 73.
Show 7 more questionsShow fewer questions
Is Dr. Johnson B. Walker board certified?
Yes. Dr. Walker is board certified in surgery by the American Board of Surgery.
What services does Dr. Johnson B. Walker bill to Medicare?
In 2024, Dr. Walker's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99222).
Where did Dr. Johnson B. Walker go to medical school?
Dr. Walker graduated from California University Of Science And Medicine in 2022.
What drugs does Dr. Johnson B. Walker prescribe most?
In 2020 Medicare Part D data, Dr. Walker's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Johnson B. Walker received payments from drug or device companies?
CMS Open Payments shows $2,261 in general payments to Dr. Walker from 19 companies from 2017 to 2025. The largest total came from Musculoskeletal Transplant Foundation Inc.
How long has Dr. Johnson B. Walker been practicing?
Dr. Walker graduated from medical school in 2022, 4 years ago.
What insurance does Dr. Johnson B. Walker accept?
Dr. Walker is in network with 20 carriers, including Elevance, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
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