Dr. David M. Johnson, MD
- Medicare services, 2024
- 1,659
- Medicare patients, 2024
- 486
- Part D claims, 2024
- 9,764
- Hospital affiliations
- 3
- Industry payments
- $1,929
- Practice address
- 3655 Mitchell Street, Loris, SC 29569
- Practice phone
- Call (843) 716-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Johnson'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. David M. Johnson is an internist in Loris, South Carolina
Dr. Johnson practices at McLeod Health Loris in Loris, South Carolina, part of McLeod Health.
Dr. Johnson's NPI, 1790705796, was assigned on July 20, 2006. Dr. Johnson graduated from Loma Linda University School of Medicine in 1993. Dr. Johnson holds South Carolina license 35605.
- NPI
- 1790705796NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264535277
- NPI enumeration date
- July 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (843) 716-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David M. Johnson practices at McLeod Health Loris in Loris, South Carolina
Dr. Johnson's primary practice is McLeod Health Loris, at 3655 Mitchell Street, Loris, SC 29569 in Horry County. The practice phone is (843) 716-7000.
- McLeod Health Loris3655 Mitchell Street, Loris, SC 29569 · Horry CountyPhone(843) 716-7000
Source: Dmand AI Affiliation Data
Dr. David M. Johnson is affiliated with 11 sites of care and 2 medical groups
Dr. Johnson's primary practice is McLeod Health Loris in Loris, South Carolina, part of McLeod Health. Dr. Johnson is also affiliated with Grand Strand Medical Center. The medical group on file is McLeod Physician Associates. Dmand AI also links Dr. Johnson to 1 more hospital, 5 home health agencies, 2 group practices and clinics, 1 hospice and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David M. Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices, 11 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| McLeod Health Loris | Available with a free account |
| +10 more sites and 1 medical group | 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. David M. Johnson is one of 1,707 internists in South Carolina
Internal medicine is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Johnson's licenses on file in 2 states: South Carolina and North Carolina.
Specialties and state licenses
- Internal medicine, South CarolinaPrimary
- North Carolina license
Internists near Dr. Johnson
Counts of internists 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. David M. Johnson billed Medicare for 1,659 services in 2024
CMS data shows 1,659 Medicare services from Dr. Johnson across 7 procedure codes in 2024, for 486 Medicare patients. Medicare paid $113,498 for them. Every service was in an office.
Dr. Johnson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,2172024: 1,1684%
- Other services
- 2023: 02024: 491
Dr. Johnson compared with the South Carolina median for internists, 2024
- Dr. Johnson
- South Carolina median
- Medicare services
- 1,659vs 7402.2 times
- Medicare patients
- 486vs 25888% above
- Part D claims
- 8,985vs 33127.1 times
Medians across 1,708 internists in South Carolina with Dmand AI profiles that report each measure.
Dr. Johnson'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.
Need commercial claims for Dr. Johnson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Johnson and other internists in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David M. Johnson treated 486 Medicare patients in 2024, average age 73
CMS counts 486 Medicare patients who saw Dr. Johnson in 2024. The largest group is 65 to 74, with 269 patients. 73% of them have high cholesterol, and 72% have high blood pressure. Their average risk score is 0.79, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 69, with 48% women.
Dr. Johnson's Medicare patients by age, 2024
Dr. Johnson's Medicare patients by sex, 2024
- Women22246%
- Men26454%
Chronic conditions among Dr. Johnson's Medicare patients, 2024
- High cholesterol73%
- High blood pressure72%
- Arthritis52%
- Diabetes23%
- Anxiety21%
- Ischemic heart disease20%
- Mood disorders20%
- Depression19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Johnson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David M. Johnson wrote 9,764 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 9,764 Medicare Part D claims for 881 patients. 90% of them were for generic drugs. CMS names the drug for 8,985 of them, across 129 drugs with 11 or more claims each, at $504,865 in total drug cost. In 2023, CMS named 5,350 claims across 106 drugs.
Dr. Johnson's Part D claims by kind of drug, 2024
- Generic8,821 claims90%
- Brand-name919 claims9%
- Other24 claims0%
Dr. Johnson's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Johnson's Part D claims, 2024
- Opioids1%128 of 9,764 claims
- Antibiotics2%228 of 9,764 claims
- Antipsychotics, patients 65 and over0%12 of 9,764 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5,3502024: 8,98568%
Drugs named by CMS: 129 in 2024, 106 in 2023.
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. David M. Johnson takes part in Medicare
Dr. Johnson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David M. Johnson received $1,929 in industry payments from 2016 to 2024
CMS Open Payments shows 141 general payments to Dr. Johnson from 19 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $334.
General payments to Dr. Johnson by program year, 2016 to 2024
General payments to Dr. Johnson by kind, 2016 to 2024
- Food and beverage$1,924100%
- Education$50%
Companies that paid Dr. Johnson the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David M. Johnson graduated from Loma Linda University School of Medicine
Dr. Johnson graduated from Loma Linda University School of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David M. Johnson'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) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. David M. Johnson
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. David M. Johnson's NPI number?
Dr. David M. Johnson's NPI number is 1790705796. It was assigned on July 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David M. Johnson?
Dr. David M. Johnson is an internist in Loris, South Carolina. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David M. Johnson practice?
Dr. Johnson practices at 3655 Mitchell Street, Loris, SC 29569. Dr. Johnson's primary practice is McLeod Health Loris in Loris, South Carolina, part of McLeod Health. Dmand AI also links Dr. Johnson to 1 hospital, 5 home health agencies, 2 group practices and clinics, 1 hospice and 1 medical group.
What is Dr. David M. Johnson's office phone number?
The practice phone on file for Dr. Johnson is (843) 716-7000.
What is Dr. David M. Johnson's medical license number?
Dr. Johnson holds South Carolina license 35605, one of the licenses on file in 2 states.
Which states has Dr. David M. Johnson been licensed in?
Dmand AI has state licenses on file for Dr. Johnson in South Carolina and North Carolina.
Which hospitals is Dr. David M. Johnson affiliated with?
Dr. Johnson practices at McLeod Health Loris in Loris, South Carolina. Dr. Johnson is also affiliated with Grand Strand Medical Center. Dmand AI links Dr. Johnson to 1 more hospital.
What medical group is Dr. David M. Johnson part of?
Dr. Johnson is linked to McLeod Physician Associates. Dmand AI links Dr. Johnson to 1 more medical group.
Does Dr. David M. Johnson accept Medicare?
Yes. CMS data shows Dr. Johnson billed Medicare for 1,659 services in 2024, and Dr. Johnson accepts Medicare assignment.
How many Medicare patients does Dr. David M. Johnson see?
CMS counts 486 Medicare patients who saw Dr. Johnson in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. David M. Johnson bill to Medicare?
In 2024, Dr. Johnson's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G0438).
Where did Dr. David M. Johnson go to medical school?
Dr. Johnson graduated from Loma Linda University School of Medicine in 1993.
What drugs does Dr. David M. Johnson prescribe most?
In 2024 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Rosuvastatin Calcium.
Has Dr. David M. Johnson received payments from drug or device companies?
CMS Open Payments shows $1,929 in general payments to Dr. Johnson from 19 companies from 2016 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. David M. Johnson been practicing?
Dr. Johnson graduated from medical school in 1993, 33 years ago.
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