Dr. Michael Nolen Johnston, MD
- Medicare services, 2024
- 220
- Medicare patients, 2024
- 231
- Part D claims, 2024
- 20
- Hospital affiliations
- 1
- Industry payments
- $73
- Practice address
- 1211 Medical Center Drive, Nashville, TN 37232
- Practice phone
- Call (615) 322-3454
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Johnston's professional email, personal email and mobile number
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Dr. Michael Nolen Johnston is an emergency medicine physician in Nashville, Tennessee
Dr. Johnston practices at Vanderbilt University Medical Center in Nashville, Tennessee, part of Vanderbilt University Medical Center.
Dr. Johnston's NPI, 1487698361, was assigned on June 15, 2006. Dr. Johnston graduated from University of Alabama School of Medicine in 1994. Dr. Johnston holds Tennessee license 41119.
- NPI
- 1487698361NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628162179
- NPI enumeration date
- June 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (615) 322-3454
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Nolen Johnston practices at Vanderbilt University Medical Center in Nashville, Tennessee
Dr. Johnston's primary practice is Vanderbilt University Medical Center, at 1211 Medical Center Drive, Nashville, TN 37232 in Davidson County. The practice phone is (615) 322-3454.
- Vanderbilt University Medical Center1211 Medical Center Drive, Nashville, TN 37232 · Davidson CountyPhone(615) 322-3454
Source: Dmand AI Affiliation Data
Dr. Michael Nolen Johnston is affiliated with 3 sites of care and 2 medical groups
Dr. Johnston's primary practice is Vanderbilt University Medical Center in Nashville, Tennessee, part of Vanderbilt University Medical Center. The medical group on file is Vanderbilt University Medical Center. Dmand AI also links Dr. Johnston to 2 more group practices and clinics 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. Michael Nolen Johnston's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnston practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Vanderbilt University Medical Center | Available with a free account |
| +2 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 Vanderbilt University Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Michael Nolen Johnston is one of 1,088 emergency medicine physicians in Tennessee
Emergency medicine is Dr. Johnston's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Johnston's licenses on file in 3 states: Tennessee, Alabama and Louisiana.
Specialties and state licenses
- Emergency medicine, TennesseePrimary
- Pediatric emergency medicine (pediatrics), Alabama
- Louisiana license
Emergency medicine physicians near Dr. Johnston
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. Michael Nolen Johnston billed Medicare for 220 services in 2024
CMS data shows 220 Medicare services from Dr. Johnston across 3 procedure codes in 2024, for 231 Medicare patients. Medicare paid $27,113 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Johnston's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2392024: 2208%
Dr. Johnston compared with the Tennessee median for emergency medicine physicians, 2024
- Dr. Johnston
- Tennessee median
- Medicare services
- 220vs 26617% below
- Medicare patients
- 231vs 25710% below
- Part D claims
- 11vs 9388% below
Medians across 1,079 emergency medicine physicians in Tennessee with Dmand AI profiles that report each measure.
Dr. Johnston'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. Johnston and other emergency medicine physicians in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Nolen Johnston treated 231 Medicare patients in 2024, average age 69
CMS counts 231 Medicare patients who saw Dr. Johnston in 2024. The largest group is 65 to 74, with 100 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 16% are also on Medicaid. Their average risk score is 2.29, 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. Johnston's median patient age at 50, with 53% women.
Dr. Johnston's Medicare patients by age, 2024
Dr. Johnston's Medicare patients by sex, 2024
- Women12152%
- Men11048%
Chronic conditions among Dr. Johnston's Medicare patients, 2024
- High blood pressure75%
- High cholesterol72%
- Arthritis55%
- Chronic kidney disease44%
- Ischemic heart disease44%
- Anxiety42%
- Diabetes42%
- Mood disorders40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Johnston's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 50
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael Nolen Johnston wrote 20 Medicare Part D claims in 2024
In 2024, Dr. Johnston wrote 20 Medicare Part D claims for 12 patients. 95% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $15,923 in total drug cost.
Dr. Johnston's Part D claims by kind of drug, 2024
- Generic19 claims95%
- Brand-name and other1 claims5%
Dr. Johnston'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.
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. Michael Nolen Johnston takes part in Medicare
Dr. Johnston 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. Michael Nolen Johnston received $73 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Johnston from 1 drug or device company in 2016. Education make up the largest share, 100% of the total. The Medicines Company paid the most, $73.
Companies that paid Dr. Johnston the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael Nolen Johnston graduated from University of Alabama School of Medicine
Dr. Johnston graduated from University of Alabama School of Medicine in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael Nolen Johnston'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. Michael Nolen Johnston
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. Michael Nolen Johnston's NPI number?
Dr. Michael Nolen Johnston's NPI number is 1487698361. It was assigned on June 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Nolen Johnston?
Dr. Michael Nolen Johnston is an emergency medicine physician in Nashville, Tennessee. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Michael Nolen Johnston practice?
Dr. Johnston practices at 1211 Medical Center Drive, Nashville, TN 37232. Dr. Johnston's primary practice is Vanderbilt University Medical Center in Nashville, Tennessee, part of Vanderbilt University Medical Center. Dmand AI also links Dr. Johnston to 2 group practices and clinics and 1 medical group.
What is Dr. Michael Nolen Johnston's office phone number?
The practice phone on file for Dr. Johnston is (615) 322-3454.
What is Dr. Michael Nolen Johnston's medical license number?
Dr. Johnston holds Tennessee license 41119, one of the licenses on file in 3 states.
Which states has Dr. Michael Nolen Johnston been licensed in?
Dmand AI has state licenses on file for Dr. Johnston in Tennessee, Alabama and Louisiana.
Which hospitals is Dr. Michael Nolen Johnston affiliated with?
Dr. Johnston practices at Vanderbilt University Medical Center in Nashville, Tennessee.
What medical group is Dr. Michael Nolen Johnston part of?
Dr. Johnston is linked to Vanderbilt University Medical Center. Dmand AI links Dr. Johnston to 1 more medical group.
Does Dr. Michael Nolen Johnston accept Medicare?
Yes. CMS data shows Dr. Johnston billed Medicare for 220 services in 2024, and Dr. Johnston accepts Medicare assignment.
How many Medicare patients does Dr. Michael Nolen Johnston see?
CMS counts 231 Medicare patients who saw Dr. Johnston in 2024, with an average age of 69.
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What services does Dr. Michael Nolen Johnston bill to Medicare?
In 2024, Dr. Johnston's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
Where did Dr. Michael Nolen Johnston go to medical school?
Dr. Johnston graduated from University of Alabama School of Medicine in 1994.
What drugs does Dr. Michael Nolen Johnston prescribe most?
In 2020 Medicare Part D data, Dr. Johnston's most prescribed drugs by claims were Lamotrigine ER.
Has Dr. Michael Nolen Johnston received payments from drug or device companies?
CMS Open Payments shows $73 in general payments to Dr. Johnston from 1 company from 2016 to 2016. The largest total came from The Medicines Company.
How long has Dr. Michael Nolen Johnston been practicing?
Dr. Johnston graduated from medical school in 1994, 32 years ago.
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