Physician Profile
Unclaimed ProfileAbout MARNEJON
Thomas Paul Marnejon, DO is a healthcare provider in Youngstown, OH specialising in internal medicine. Thomas trained at Philadelphia College of Osteopathic Medicine, graduating in 1987.
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 is Dr. Marnejon's specialty?
Dr. Marnejon is an internal medicine in Youngstown, OH. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where can I find Dr. Marnejon?
Dr. Marnejon is listed at 1001 COVINGTON ST, Youngstown, OH 44510. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Marnejon?
The number on file is (330) 480-2616. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Marnejon?
Dr. Marnejon's National Provider Identifier is 1891898607. 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. Marnejon's medical education?
Dr. Marnejon attended Philadelphia College of Osteopathic Medicine, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Marnejon have?
Dr. Marnejon has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Marnejon known for?
According to Medicare billing data, Dr. Marnejon 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
Is Dr. Marnejon's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Marnejon. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (330) 480-2616
- Email not available
Practice Locations
1001 COVINGTON ST
Youngstown, OH 44510
Procedures Most Often Billed to Medicare
49 services · 44 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
30 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
19 |
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 internal medicines at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 24 related providers in 3 groups
Other internal medicines in Youngstown 8
Same specialty, same city.
Trained at Philadelphia College of Osteopathic Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1987 at Philadelphia College of Osteopathic Medicine 8
Providers who graduated from the same medical school in the same year.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.