Dr. Darren Lemar Johnson, MD
- Medicare services, 2024
- 545
- Medicare patients, 2024
- 394
- Part D claims, 2024
- 301
- Hospital affiliations
- 2
- Industry payments
- $521
- Practice address
- 1265 Union Ave Suite 700, Memphis, TN 38104
- Practice phone
- Call (901) 516-8274
- 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
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Dr. Darren Lemar Johnson is an emergency medicine physician in Memphis, Tennessee
Dr. Johnson practices at Methodist University Hospital in Memphis, Tennessee, part of Methodist Le Bonheur Healthcare.
Dr. Johnson's NPI, 1164452223, was assigned on July 4, 2006. Dr. Johnson graduated from University of Tennessee, Hsc, College of Medicine in 2003. Dr. Johnson holds Tennessee license 39030.
- NPI
- 1164452223NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436115987
- NPI enumeration date
- July 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (901) 516-8274
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Darren Lemar Johnson practices at Methodist University Hospital in Memphis, Tennessee
Dr. Johnson's primary practice is Methodist University Hospital, at 1265 Union Ave Suite 700, Memphis, TN 38104 in Shelby County. The practice phone is (901) 516-8274.
- Methodist University Hospital1265 Union Ave Suite 700, Memphis, TN 38104 · Shelby CountyPhone(901) 516-8274
Source: Dmand AI Affiliation Data
Dr. Darren Lemar Johnson is affiliated with 2 sites of care and 8 medical groups
Dr. Johnson's primary practice is Methodist University Hospital in Memphis, Tennessee, part of Methodist Le Bonheur Healthcare. Dr. Johnson is also affiliated with Select Specialty Hospital - Memphis. The medical group on file is Southeastern Emergency Physicians. Dmand AI also links Dr. Johnson to 7 more medical groups, 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. Darren Lemar Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Methodist University Hospital | Available with a free account |
| +1 more site and 7 medical groups | 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 Methodist Le Bonheur Healthcare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Darren Lemar Johnson is one of 1,088 emergency medicine physicians in Tennessee
Emergency medicine is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Johnson is licensed in Tennessee.
Specialties and state licenses
- Emergency medicine, TennesseePrimary
Emergency medicine physicians near Dr. Johnson
Counts of emergency medicine 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. Darren Lemar Johnson billed Medicare for 545 services in 2024
CMS data shows 545 Medicare services from Dr. Johnson across 4 procedure codes in 2024, for 394 Medicare patients. Medicare paid $50,573 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Johnson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6562024: 41237%
- Tests and treatments
- 2023: 2862024: 13353%
Dr. Johnson compared with the Tennessee median for emergency medicine physicians, 2024
- Dr. Johnson
- Tennessee median
- Medicare services
- 545vs 2662.0 times
- Medicare patients
- 394vs 25753% above
- Part D claims
- 139vs 9349% above
Medians across 1,079 emergency medicine physicians in Tennessee 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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Darren Lemar Johnson treated 394 Medicare patients in 2024, average age 73
CMS counts 394 Medicare patients who saw Dr. Johnson in 2024. The largest group is 65 to 74, with 151 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 32% are also on Medicaid. Their average risk score is 2.40, 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. Johnson's median patient age at 67, with 58% women.
Dr. Johnson's Medicare patients by age, 2024
Dr. Johnson's Medicare patients by sex, 2024
- Women20652%
- Men18848%
Chronic conditions among Dr. Johnson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Diabetes51%
- Ischemic heart disease48%
- Chronic kidney disease44%
- Heart failure41%
- Anxiety36%
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 67
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Darren Lemar Johnson wrote 301 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 301 Medicare Part D claims for 194 patients. 92% of them were for generic drugs. CMS names the drug for 139 of them, across 6 drugs with 11 or more claims each, at $813 in total drug cost. In 2023, CMS named 140 claims across 6 drugs.
Dr. Johnson's Part D claims by kind of drug, 2024
- Generic278 claims92%
- Brand-name and other23 claims8%
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
- Opioids17%52 of 301 claims
- Antibiotics35%104 of 301 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: 1402024: 1391%
Drugs named by CMS: 6 in 2024, 6 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. Darren Lemar 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. Darren Lemar Johnson received $521 in industry payments from 2016 to 2022
CMS Open Payments shows 13 general payments to Dr. Johnson from 6 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $164.
General payments to Dr. Johnson by program year, 2016 to 2022
Companies that paid Dr. Johnson the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Darren Lemar Johnson graduated from University of Tennessee, Hsc, College of Medicine
Dr. Johnson graduated from University of Tennessee, Hsc, College of Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Darren Lemar 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. Darren Lemar 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. Darren Lemar Johnson's NPI number?
Dr. Darren Lemar Johnson's NPI number is 1164452223. It was assigned on July 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Darren Lemar Johnson?
Dr. Darren Lemar Johnson is an emergency medicine physician in Memphis, Tennessee. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Darren Lemar Johnson practice?
Dr. Johnson practices at 1265 Union Ave Suite 700, Memphis, TN 38104. Dr. Johnson's primary practice is Methodist University Hospital in Memphis, Tennessee, part of Methodist Le Bonheur Healthcare. Dmand AI also links Dr. Johnson to 7 medical groups.
What is Dr. Darren Lemar Johnson's office phone number?
The practice phone on file for Dr. Johnson is (901) 516-8274.
What is Dr. Darren Lemar Johnson's medical license number?
Dr. Johnson holds Tennessee license 39030.
Which hospitals is Dr. Darren Lemar Johnson affiliated with?
Dr. Johnson practices at Methodist University Hospital in Memphis, Tennessee. Dr. Johnson is also affiliated with Select Specialty Hospital - Memphis.
What medical group is Dr. Darren Lemar Johnson part of?
Dr. Johnson is linked to Southeastern Emergency Physicians. Dmand AI links Dr. Johnson to 7 more medical groups.
Does Dr. Darren Lemar Johnson accept Medicare?
Yes. CMS data shows Dr. Johnson billed Medicare for 545 services in 2024, and Dr. Johnson accepts Medicare assignment.
How many Medicare patients does Dr. Darren Lemar Johnson see?
CMS counts 394 Medicare patients who saw Dr. Johnson in 2024, with an average age of 73.
What services does Dr. Darren Lemar Johnson bill to Medicare?
In 2024, Dr. Johnson's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Show 4 more questionsShow fewer questions
Where did Dr. Darren Lemar Johnson go to medical school?
Dr. Johnson graduated from University of Tennessee, Hsc, College of Medicine in 2003.
What drugs does Dr. Darren Lemar Johnson prescribe most?
In 2024 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Oxycodone-Acetaminophen, Amoxicillin-Clavulanate Potass and Ondansetron HCl.
Has Dr. Darren Lemar Johnson received payments from drug or device companies?
CMS Open Payments shows $521 in general payments to Dr. Johnson from 6 companies from 2016 to 2022. The largest total came from Pfizer Inc.
How long has Dr. Darren Lemar Johnson been practicing?
Dr. Johnson graduated from medical school in 2003, 23 years ago.
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