Physician Profile
Unclaimed ProfileAbout MARK
Jon E Mark, O.D. is a healthcare provider in Warsaw, IN specialising in optometry. Jon trained at Indiana University - School of Optometry, graduating in 1986. Jon is also listed as specialising in optometrist.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Mark specialise in?
Dr. Mark is an optometry in Warsaw, IN. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPTOMETRY”.
NPI registry
Where is Dr. Mark located?
Dr. Mark is listed at 2251 DUBOIS DR, Warsaw, IN 46580. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Mark's phone number?
The number on file is (574) 269-2777. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Mark's NPI number?
Dr. Mark's National Provider Identifier is 1508869942. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Mark go to medical school?
Dr. Mark attended Indiana University - School of Optometry, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Mark been practising?
Dr. Mark has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Mark do most often?
According to Medicare billing data, Dr. Mark provides treatments such as imaging of retina and exam of visual field with extended testing, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Mark confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mark. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (574) 269-2777
- Email not available
Practice Locations
2251 DUBOIS DR
Warsaw, IN 46580
Procedures Most Often Billed to Medicare
1,225 services · 887 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Imaging of retina | Treatment | 92134 |
225 |
| Exam of visual field with extended testing | Treatment | 92083 |
96 |
| Imaging of optic nerve | Treatment | 92133 |
94 |
| Exam of the internal drainage system of eye | Treatment | 92020 |
15 |
| Extended exam of the back part of the eye with retinal drawing | Treatment | 92201 |
11 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
649 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
80 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
31 |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
13 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
11 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other optometry specialists at this location 4
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other optometry specialists in Warsaw 4
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Indiana University - School of Optometry 8
Other providers in the same specialty who trained at the same institution.
Class of 1986 at Indiana University - School of Optometry 8
Providers who graduated from the same medical school in the same year.
Also performs Imaging of retina 8
Providers in IN who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.