Provider Profile
John Douglas Coalter, O.D.
Unclaimed ProfileAbout Dr. Coalter
Based in Michigan City, IN, John Douglas Coalter, O.D. is listed in the NPI registry under optometry. John is also listed as specializing in optometrist. Medicare claims data shows John provided 355 services to 318 patients.
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
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (219) 872-8844
- Email not available
Practice Locations
3701 FRANKLIN ST
Michigan City, IN 46360
Conditions Commonly Evaluated or Treated
Within Optometry generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Procedures & services
Most searched procedures
Procedures Most Often Billed to Medicare
355 services · 318 patients · 8 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Imaging of retina | Treatment | 92134 |
49 |
| Imaging of optic nerve | Treatment | 92133 |
40 |
| Exam of visual field with extended testing | Treatment | 92083 |
22 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
98 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
56 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
47 |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
22 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
21 |
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 1
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 Michigan City 3
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1986 at Other 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.
Common questions
What is Dr. Coalter's specialty?
Dr. Coalter is an optometry in Michigan City, IN. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPTOMETRY”.
NPI registry
Where can I find Dr. Coalter?
Dr. Coalter is listed at 3701 FRANKLIN ST, Michigan City, IN 46360. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Coalter?
The number on file is (219) 872-8844. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Coalter?
Dr. Coalter's National Provider Identifier is 1942306311. 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
What is Dr. Coalter's medical education?
Dr. Coalter attended Other, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Coalter have?
Dr. Coalter has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Coalter known for?
According to Medicare billing data, Dr. Coalter provides treatments such as imaging of retina and imaging of optic nerve, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Coalter's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Coalter. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.