Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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John David Schaefer, MD

Individual provider Otolaryngology Physician · NPI 1841227816

John David Schaefer, MD practises Otolaryngology in Ogdensburg, New York. Qualified in 1975, 51 years ago. Practices with Claxton-Hepburn Medical Center, a 78-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
51
Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3 Lyon Pl Ste 302
Ogdensburg, NY 13669-2546
Phone: (315) 393-7955
Fax: (888) 369-9340
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence 230224-1 (NY)

Record details

NPI number1841227816
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2006
Last updated in NPPESApril 22, 2022
Certification dateApril 22, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOTOLARYNGOLOGY
Medical schoolOTHER
Graduated 1975 (51 years in practice)
Group practice Claxton-Hepburn Medical Center — 78 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Melanoma (skin cancer) excision 1–10 times
Skin biopsy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients347
Services billed 604 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Claxton-Hepburn Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 78 clinicians in the practice; 12 are shown here.

Other providers in Ogdensburg