Mark Ewald, M.D.
NPI 1881899318 · Ophthalmology Physician · Nashville, TN
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Ewald, M.D. is a Ophthalmology Physician provider in Nashville, TN (NPI 1881899318).
Provider details
- NPI number
- 1881899318
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD0000044819 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,184 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 443 | $120 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 282 | $86 |
| Imaging of Retina92134 | 258 | $37 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 200 | $500 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 180 | $38 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 500 | 266 |
| Moxifloxacin Hclbrand: Moxifloxacin | 245 | 127 |
| Latanoprost | 212 | 64 |
| Timolol Maleate | 181 | 58 |
| Bromfenac Sodium | 131 | 90 |
| Valacyclovir Hclbrand: Valacyclovir | 98 | 25 |
| Ofloxacin | 51 | 40 |
| Dorzolamide Hcl/Timolol Maleat |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$753 across 37 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-06-15
- Last updated
- 2024-12-19
- Certified
- 2024-12-19
Frequently asked questions
- What is Mark Ewald's NPI number?
- Mark Ewald's National Provider Identifier (NPI) is 1881899318, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Ewald's specialty?
- Mark Ewald is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Ewald located?
- Mark Ewald's practice location on file with NPPES is 335 24th Ave N Ste 600, Nashville, TN 37203-1503.
- What is Mark Ewald's phone number?
- The practice phone number listed in the NPPES registry for Mark Ewald is (615) 320-7200.
- Does Mark Ewald accept Medicare?
- Mark Ewald is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Ewald's NPI active?
- Yes — Mark Ewald's NPI (1881899318) is active in the NPPES registry as of the last update on 2024-12-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.