Physician Profile
Unclaimed ProfileAbout LOMASNEY
Jon Lomasney, MD is a healthcare provider in Chicago, IL specializing in pathology. Jon trained at Geisel School of Medicine at Dartmouth, graduating in 1987. According to Medicare claims data, Jon cared for 368 Medicare patients across 496 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
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (312) 695-9797
- Email not available
Practice Locations
680 N LAKE SHORE DR SUITE 1000
Chicago, IL 60611
Procedures Most Often Billed to Medicare
496 services · 368 patients · 6 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
246 |
| Special stained specimen slides to examine tissue including interpretation and report | Lab test | 88313 |
93 |
| Pathology examination of tissue using a microscope, moderately high complexity | Lab test | 88307 |
76 |
| Antibody evaluation, initial single antibody stain procedure | Lab test | 88346 |
35 |
| Pathology examination of tissue using a microscope, limited examination | Lab test | 88300 |
31 |
| Pathology examination of tissue using a microscope, moderately low complexity | Lab test | 88304 |
15 |
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 pathology specialists at this location 3
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 pathology specialists in Chicago 7
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Geisel School of Medicine at Dartmouth 8
Other providers in the same specialty who trained at the same institution.
Class of 1987 at Geisel School of Medicine at Dartmouth 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Lomasney specialize in?
Dr. Lomasney is a pathology in Chicago, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PATHOLOGY”.
NPI registry
Where is Dr. Lomasney located?
Dr. Lomasney is listed at 680 N LAKE SHORE DR SUITE 1000, Chicago, IL 60611. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Lomasney's phone number?
The number on file is (312) 695-9797. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Lomasney's NPI number?
Dr. Lomasney's National Provider Identifier is 1346269966. 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. Lomasney go to medical school?
Dr. Lomasney attended Geisel School of Medicine at Dartmouth, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Lomasney been practicing?
Dr. Lomasney has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Lomasney do most often?
According to Medicare billing data, Dr. Lomasney the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Lomasney confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Lomasney. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.