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Edit this profileAt a glance
- 555 N Duke St, Lancaster, PA 17602
About Dr. Derderian
John K. Derderian, DO is a healthcare provider in Lancaster, PA specializing in internal medicine. John trained at Philadelphia College of Osteopathic Medicine, graduating in 2000. This provider record is associated with NPI 1477595445.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (717) 544-5511
- Email not available
Practice Locations
555 N DUKE ST
Lancaster, PA 17602
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 internists at this location 3
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 — 21 related providers in 3 groups
Other internists in Lancaster 5
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 2000 at Philadelphia College of Osteopathic Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Derderian's specialty?
Dr. Derderian is an internist in Lancaster, PA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where can I find Dr. Derderian?
Dr. Derderian is listed at 555 N Duke St, Lancaster, PA 17602. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Derderian?
The number on file is (717) 544-5511. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Derderian?
Dr. Derderian's National Provider Identifier is 1477595445. 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. Derderian's medical education?
Dr. Derderian attended Philadelphia College of Osteopathic Medicine, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Derderian have?
Dr. Derderian has 26 years experience. Calculated from a graduation year of 2000, reported in the CMS National Downloadable File.
CMS public data
Is Dr. Derderian's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Derderian. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.