Physician Profile
Unclaimed ProfileAbout LANCASTER
John M. Lancaster, O.D. practices optometry in New Lenox, IL. John is a 1973 graduate of Illinois College of Optometry at Chicago. John is also listed as specializing in optometrist. According to Medicare claims data, John cared for 320 Medicare patients across 1,933 services.
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. Lancaster specialize in?
Dr. Lancaster is an optometry in New Lenox, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPTOMETRY”.
NPI registry
Where is Dr. Lancaster located?
Dr. Lancaster is listed at 402 E LINCOLN HWY, New Lenox, IL 60451. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Lancaster's phone number?
The number on file is (815) 485-3431. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Lancaster's NPI number?
Dr. Lancaster's National Provider Identifier is 1609951474. 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. Lancaster go to medical school?
Dr. Lancaster attended Illinois College of Optometry at Chicago, graduating in 1973. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Lancaster been practicing?
Dr. Lancaster has 53 years experience. Calculated from a graduation year of 1973, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Lancaster do most often?
According to Medicare billing data, Dr. Lancaster performs procedures including removal of cataract with insertion of prosthetic lens; provides treatments such as established patient complete exam of visual system and photography of the retina. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Lancaster confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Lancaster. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (815) 485-3431
- Email not available
Practice Locations
402 E LINCOLN HWY
New Lenox, IL 60451
Procedures Most Often Billed to Medicare
1,933 services · 320 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
1,617 |
| Established patient complete exam of visual system | Treatment | 92014 |
203 |
| Photography of the retina | Treatment | 92250 |
84 |
| Established patient problem focused exam of visual system | Treatment | 92012 |
29 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 1
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 New Lenox 7
Same specialty, same city.
Trained at Illinois College of Optometry at Chicago 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1973 at Illinois College of Optometry at Chicago 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of cataract with insertion of prosthetic lens 8
Providers in IL 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.