Dr. John L. Elfervig, MD
- Medicare services, 2019
- 1,691
- Part D claims, 2020
- 239
- Industry payments
- $7,569
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 825 Ridge Lake Blvd, Memphis, TN 38120-9411
- Practice phone
- Call (901) 685-2200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Cvi
Eye care practice · Memphis, Tennessee
Find Dr. Elfervig'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. John L. Elfervig is a retina specialist (ophthalmology) physician in Southaven, Mississippi
Dr. Elfervig practices at Cvi in Memphis, Tennessee.
Dr. Elfervig's NPI, 1619910544, was assigned on June 14, 2006. Dr. Elfervig holds Tennessee license 9929.
- NPI
- 1619910544NPI Registry (opens in a new tab)
- NPI enumeration date
- June 14, 2006
- NPI status
- Active
- Practice phone
- (901) 685-2200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John L. Elfervig practices in Memphis and Southaven
Dr. Elfervig's primary practice is Cvi, at 825 Ridge Lake Blvd, Memphis, TN 38120-9411. The practice phone is (901) 685-2200. The NPI Registry lists Dr. Elfervig's practice address as 7601 Southcrest Pkwy, Southaven, MS 38671.
- CviPrimary825 Ridge Lake Blvd, Memphis, TN 38120-9411Phone(901) 685-2200
- NPI Registry address7601 Southcrest Pkwy, Southaven, MS 38671 · Desoto CountyPhone(901) 685-2200
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. John L. Elfervig is affiliated with 1 site of care and 1 medical group
Dr. Elfervig's primary practice is Cvi in Memphis, Tennessee. Dmand AI also links Dr. Elfervig to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. John L. Elfervig's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Elfervig practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cvi | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John L. Elfervig is one of 11 retina specialist (ophthalmology) physicians in Mississippi
Retina specialist is Dr. Elfervig's primary specialty in the NPI Registry, under taxonomy code 207WX0107X. Dmand AI has Dr. Elfervig's licenses on file in 3 states: Tennessee, Arkansas and Mississippi.
Specialties and state licenses
- Retina specialist (ophthalmology), TennesseePrimary
- Arkansas license
- Mississippi license
Retina specialist (ophthalmology) physicians near Dr. Elfervig
Counts of retina specialist (ophthalmology) 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. John L. Elfervig billed Medicare for 1,691 services in 2019
CMS data shows 1,691 Medicare services from Dr. Elfervig across 12 procedure codes in 2019. Medicare paid $89,969 for them.
Dr. Elfervig's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Tests and treatments
- 2018: 2,4792019: 91263%
- Office and hospital visits
- 2018: 1,5372019: 69755%
- Surgery
- 2018: 1382019: 8241%
- Imaging
- 2018: 152019: 0100%
Where Dr. Elfervig's Medicare services took place, 2019
- In an office1,60995%
- In a facility825%
Dr. Elfervig compared with the Mississippi median for retina specialist (ophthalmology) physicians, 2019
- Dr. Elfervig
- Mississippi median
- Medicare services
- 1,691vs 19,17491% below
- Part D claims
- 239vs 73267% below
Medians across 11 retina specialist (ophthalmology) physicians in Mississippi with Dmand AI profiles that report each measure.
Dr. Elfervig's most billed Medicare procedure codes, 2019
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. Elfervig?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Elfervig and other retina specialist (ophthalmology) physicians in Mississippi.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John L. Elfervig's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Elfervig's median patient age at 73, with 57% women.
Dr. Elfervig's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
Dr. John L. Elfervig wrote 239 Medicare Part D claims in 2020
In 2020, Dr. Elfervig wrote 239 Medicare Part D claims. They cover 9 drugs, with $26,103 in total drug cost. In 2019, CMS named 1,248 claims across 18 drugs.
Dr. Elfervig'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: 1,2482020: 23981%
Drugs named by CMS: 9 in 2020, 18 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. John L. Elfervig received $7,569 in industry payments from 2016 to 2023
CMS Open Payments shows 100 general payments to Dr. Elfervig from 22 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 80% of the total. Allergan Inc. paid the most, $2,262. It also lists 1 research payment totaling $2,292 in 2017.
General payments to Dr. Elfervig by program year, 2016 to 2023
General payments to Dr. Elfervig by kind, 2016 to 2023
- Food and beverage$6,03280%
- Gifts$1,43919%
- Entertainment$901%
- Education$90%
Companies that paid Dr. Elfervig the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John L. Elfervig'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. John L. Elfervig
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. John L. Elfervig's NPI number?
Dr. John L. Elfervig's NPI number is 1619910544. It was assigned on June 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John L. Elfervig?
Dr. John L. Elfervig is a retina specialist (ophthalmology) physician in Southaven, Mississippi. The primary specialty in the NPI Registry is Retina Specialist (Ophthalmology) Physician (taxonomy code 207WX0107X).
Where does Dr. John L. Elfervig practice?
Dr. Elfervig practices at 825 Ridge Lake Blvd, Memphis, TN 38120-9411. Dr. Elfervig also practices at 7601 Southcrest Pkwy, Southaven, MS 38671. Dr. Elfervig's primary practice is Cvi in Memphis, Tennessee. Dmand AI also links Dr. Elfervig to 1 medical group.
What is Dr. John L. Elfervig's office phone number?
The practice phone on file for Dr. Elfervig is (901) 685-2200.
What is Dr. John L. Elfervig's medical license number?
Dr. Elfervig holds Tennessee license 9929, one of the licenses on file in 3 states.
Which states has Dr. John L. Elfervig been licensed in?
Dmand AI has state licenses on file for Dr. Elfervig in Tennessee, Arkansas and Mississippi.
Does Dr. John L. Elfervig accept Medicare?
Yes. CMS data shows Dr. Elfervig billed Medicare for 1,691 services in 2019.
What services does Dr. John L. Elfervig bill to Medicare?
In 2019, Dr. Elfervig's most billed Medicare services were eye exam or test (92134), office visit, established patient (99213) and office visit, established patient (99214).
What drugs does Dr. John L. Elfervig prescribe most?
In 2020 Medicare Part D data, Dr. Elfervig's most prescribed drugs by claims were Latanoprost, Lumigan and Brimonidine Tartrate.
Has Dr. John L. Elfervig received payments from drug or device companies?
CMS Open Payments shows $7,569 in general payments to Dr. Elfervig from 22 companies from 2016 to 2023. The largest total came from Allergan Inc.
How long has Dr. John L. Elfervig been practicing?
Dr. Elfervig's NPI was assigned in 2006.
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