Doctor profile · Federal record

Dr. John Coalter, O.D.

Optometrist (CMS: Optometry) · Michigan City, IN

  • NPI 1942306311
  • Accepts Medicare
  • MIPS 90.4 / 100 · 2023
  • 40 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3701 Franklin St
Michigan City, IN 463607310
(219) 872-8844
fax (219) 874-2872
Mailing address
1950 Old Gallows RD Ste 520
Vienna, VA 221823970

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
October 25, 2021
Year of graduation
1986 — 40 yrs since
Specialty taxonomy
152W00000X — NUCC code
State license (1)
Indiana #18002563A 18002563B

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1942306311. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
326
Distinct HCPCS
9
Medicare allowed
$31,727
HCPCS Description Services Patients Avg allowed
92014 Established patient complete exam of visual system 67 66 $118
G2212 Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or 56 24 $30
99215 Established patient office or other outpatient visit, 40-54 minutes 46 34 $167
99204 New patient office or other outpatient visit, 45-59 minutes 40 40 $155
99214 Established patient office or other outpatient visit, 30-39 minutes 32 30 $119
92134 Imaging of retina 23 23 $38
92133 Imaging of optic nerve 22 21 $34
92012 Established patient problem focused exam of visual system 20 19 $83
92083 Exam of visual field with extended testing 20 20 $58

In context: peer comparison

Among 3 peers in this city , average services per provider: 55. This provider delivers 5.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$309
Transactions
4
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Apellis Pharmaceuticals, Inc. 1 $124.99
Ocular Therapeutix, Inc. 1 $90.95
Glaukos Corporation 1 $68.29
Tarsus Pharmaceuticals, Inc. 1 $24.46

By nature of payment

Food and Beverage
$309

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
30
Patients
0
Total drug cost
$619
Drug Type Claims Patients Total cost
Latanoprost Generic 30 0 $619

Frequently asked questions

Auto-generated from federal data
What is Dr. John Coalter's medical specialty?
Dr. John Coalter practices Optometrist in Michigan City, IN.
Where does Dr. John Coalter practice?
Dr. John Coalter practices at 3701 Franklin St, Michigan City, IN 463607310. Office phone: 2198728844.
What is Dr. John Coalter's NPI?
Dr. John Coalter's National Provider Identifier (NPI) is 1942306311, issued by NPPES.
Does Dr. John Coalter accept Medicare assignment?
Yes. Dr. John Coalter accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Coalter commonly perform?
Top Medicare-reported procedures in 2023: Established patient complete exam of visual system (HCPCS 92014); Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (HCPCS G2212); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.