Semin Ophthalmol
Corneal UlcerEye Infections, BacterialEye Infections, Fungal
Dr. Mark D. Ewald, MD
NPI1881899318PAC ID5597839019
- Medicare services, 2024
- 2,184
- Medicare patients, 2024
- 734
- Part D claims, 2024
- 2,021
- Publications
- 2
- Clinical trials
- 1
- Practice address
- 2400 Patterson St, Nashville, TN 37203
- Practice phone
- Call (615) 327-2111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The Endoscopy Center of Centennial LP
Nashville, Tennessee
Find Dr. Ewald'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. Mark D. Ewald is an ophthalmologist in Nashville, Tennessee
Dr. Ewald practices at The Endoscopy Center of Centennial LP in Nashville, Tennessee.
Dr. Ewald's NPI, 1881899318, was assigned on June 15, 2007. Dr. Ewald holds Tennessee license MD0000044819.
NPI and contact details
- NPI
- 1881899318NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597839019
- NPI enumeration date
- June 15, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (615) 327-2111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark D. Ewald practices at The Endoscopy Center of Centennial LP in Nashville, Tennessee
Dr. Ewald's primary practice is The Endoscopy Center of Centennial LP, at 2400 Patterson St, Nashville, TN 37203 in Davidson County. The practice phone is (615) 327-2111.
- The Endoscopy Center of Centennial LP2400 Patterson St, Nashville, TN 37203 · Davidson CountyPhone(615) 327-2111
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark D. Ewald is affiliated with 4 sites of care and 2 medical groups
Dr. Ewald's primary practice is The Endoscopy Center of Centennial LP in Nashville, Tennessee. Dr. Ewald is also affiliated with TriStar Centennial Medical Center. The medical group on file is Vanderbilt University Medical Center. Dmand AI also links Dr. Ewald to 2 more group practices and clinics and 1 medical group, each named with a free account.
The Endoscopy Center of Centennial LPPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark D. Ewald's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ewald practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Endoscopy Center of Centennial LP | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark D. Ewald is one of 310 ophthalmologists in Tennessee
Ophthalmology is Dr. Ewald's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Ewald is licensed in Tennessee.
Specialties and state licenses
- Ophthalmology, TennesseePrimary
Ophthalmologists near Dr. Ewald
Counts of ophthalmologists 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. Mark D. Ewald billed Medicare for 2,184 services in 2024
CMS data shows 2,184 Medicare services from Dr. Ewald across 16 procedure codes in 2024, for 734 Medicare patients. Medicare paid $199,445 for them.
Medicare services, 20242,184
Medicare patients734
Paid by Medicare$199,445
Procedure codes16
Dr. Ewald's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9462024: 8906%
- Tests and treatments
- 2023: 7432024: 7825%
- Surgery
- 2023: 2622024: 2796%
- Imaging
- 2023: 1752024: 14219%
- Lab and pathology
- 2023: 562024: 9163%
Where Dr. Ewald's Medicare services took place, 2024
- In an office1,96290%
- In a facility22210%
Dr. Ewald compared with the Tennessee median for ophthalmologists, 2024
- Dr. Ewald
- Tennessee median
- Medicare services
- 2,184vs 1,58438% above
- Medicare patients
- 734vs 63615% above
- Part D claims
- 1,921vs 6333.0 times
Medians across 333 ophthalmologists in Tennessee with Dmand AI profiles that report each measure.
Dr. Ewald'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. Ewald?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ewald and other ophthalmologists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark D. Ewald treated 734 Medicare patients in 2024, average age 74
CMS counts 734 Medicare patients who saw Dr. Ewald in 2024. The largest group is 65 to 74, with 372 patients. 74% of them have high blood pressure, and 74% have high cholesterol. 4% are also on Medicaid. Their average risk score is 1.01, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ewald's median patient age at 71, with 56% women.
Medicare patients, 2024734
Average age74
Average risk score1.01
Also on Medicaid4%
Dr. Ewald's Medicare patients by age, 2024
Dr. Ewald's Medicare patients by sex, 2024
- Women43059%
- Men30441%
Chronic conditions among Dr. Ewald's Medicare patients, 2024
- High blood pressure74%
- High cholesterol74%
- Arthritis44%
- Diabetes26%
- Ischemic heart disease25%
- Chronic kidney disease22%
- Anxiety20%
- Atrial fibrillation16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ewald's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark D. Ewald wrote 2,021 Medicare Part D claims in 2024
In 2024, Dr. Ewald wrote 2,021 Medicare Part D claims for 502 patients. 55% of them were for generic drugs. CMS names the drug for 1,921 of them, across 26 drugs with 11 or more claims each, at $222,553 in total drug cost. In 2023, CMS named 1,892 claims across 24 drugs.
Part D claims, 20242,021
Drugs named by CMS26
Total drug cost$222,553
Part D patients502
Dr. Ewald's Part D claims by kind of drug, 2024
- Generic1,112 claims55%
- Brand-name909 claims45%
Dr. Ewald'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. Ewald's Part D claims, 2024
- Antibiotics1%20 of 2,021 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: 1,8922024: 1,9212%
Drugs named by CMS: 26 in 2024, 24 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
Dr. Mark D. Ewald ranks in the 90th percentile for cataract surgery in Medicare
Dr. Ewald accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 321 procedures of cataract surgery by Dr. Ewald, more than 90% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Ewald ranks in Medicare procedure volume
- Cataract surgery
- 90th percentile321 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mark D. Ewald has 2 publications on record
Dmand AI links 2 papers to Dr. Ewald in 2016. Dr. Ewald's most frequent co-authors are Erich B. Groos, MD and Kenneth John Taubenslag, MD.
Papers2
Dr. Ewald's most frequent co-authors
Recent publications by Dr. Ewald
J Cataract Refract Surg
Ciliary BodyDevice RemovalLens Capsule, Crystalline
See who Dr. Ewald researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ewald works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark D. Ewald has worked on 1 clinical trial
Dmand AI links Dr. Ewald to 1 clinical trial. Conditions studied include Herpes Zoster Ophthalmicus and Chickenpox.
Conditions in Dr. Ewald's trials
- Herpes Zoster Ophthalmicus
- Chickenpox
Investigators on the most trials with Dr. Ewald
Recent clinical trials with Dr. Ewald
Zoster Eye Disease Study (opens in a new tab)
CompletedPhase 4
Herpes Zoster OphthalmicusChickenpoxMasked Oral Valacyclovir
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Mark D. Ewald received $7,839 in industry payments from 2016 to 2025
CMS Open Payments shows 268 general payments to Dr. Ewald from 31 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 77% of the total. Visionary Optics LLC paid the most, $1,090.
General payments to Dr. Ewald by program year, 2016 to 2025
General payments to Dr. Ewald by kind, 2016 to 2025
$7.8Kin total
- Food and beverage$5,99977%
- Gifts$1,09014%
- Consulting fees$75010%
Companies that paid Dr. Ewald the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark D. Ewald's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mark D. Ewald
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. Mark D. Ewald's NPI number?
Dr. Mark D. Ewald's NPI number is 1881899318. It was assigned on June 15, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark D. Ewald?
Dr. Mark D. Ewald is an ophthalmologist in Nashville, Tennessee. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Mark D. Ewald practice?
Dr. Ewald practices at 2400 Patterson St, Nashville, TN 37203. Dr. Ewald's primary practice is The Endoscopy Center of Centennial LP in Nashville, Tennessee. Dmand AI also links Dr. Ewald to 2 group practices and clinics and 1 medical group.
What is Dr. Mark D. Ewald's office phone number?
The practice phone on file for Dr. Ewald is (615) 327-2111.
What is Dr. Mark D. Ewald's medical license number?
Dr. Ewald holds Tennessee license MD0000044819.
Which hospitals is Dr. Mark D. Ewald affiliated with?
Dr. Ewald is affiliated with TriStar Centennial Medical Center.
What medical group is Dr. Mark D. Ewald part of?
Dr. Ewald is linked to Vanderbilt University Medical Center. Dmand AI links Dr. Ewald to 1 more medical group.
Does Dr. Mark D. Ewald accept Medicare?
Yes. CMS data shows Dr. Ewald billed Medicare for 2,184 services in 2024, and Dr. Ewald accepts Medicare assignment.
How many Medicare patients does Dr. Mark D. Ewald see?
CMS counts 734 Medicare patients who saw Dr. Ewald in 2024, with an average age of 74.
What services does Dr. Mark D. Ewald bill to Medicare?
In 2024, Dr. Ewald's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and eye exam or test (92134).
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What drugs does Dr. Mark D. Ewald prescribe most?
In 2024 Medicare Part D data, Dr. Ewald's most prescribed drugs by claims were Prednisolone Acetate, Moxifloxacin and Latanoprost.
Has Dr. Mark D. Ewald received payments from drug or device companies?
CMS Open Payments shows $7,839 in general payments to Dr. Ewald from 31 companies from 2016 to 2025. The largest total came from Visionary Optics LLC.
How long has Dr. Mark D. Ewald been practicing?
Dr. Ewald graduated from medical school in 2004, 22 years ago.
Does Dr. Mark D. Ewald do research?
Dmand AI links 2 publications to Dr. Ewald. Dr. Ewald has worked on 1 clinical trial.
Who does Dr. Mark D. Ewald publish with?
Dr. Ewald's most frequent co-authors are Erich B. Groos, MD (1 shared paper) and Kenneth John Taubenslag, MD (1 shared paper).
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