Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

John Karstens

Individual provider Internal Medicine Physician · NPI 1457938169

John Karstens is a Sleep Medicine in Erie, Pennsylvania. Graduated from New York College of Osteo Medicine of New York Institute of Technology in 2021, 5 years ago. Practices with St Vincent Medical Education and Research Institute Inc, a 299-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Pennsylvania.

Years since qualifying
5
Trained at
New York College of Osteo Medicine of New York Institute of Technology
Licensed in
PA
In the registry since
2021
Specialties on file
2
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Practice location Address checks out

204 W 26th St
Erie, PA 16508-1806
Phone: (814) 868-7581
Fax: (814) 866-3580
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Sleep Medicine (Internal Medicine) Physician (primary) Taxonomy 207RS0012X · Licence OS023662 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence OS023662 (PA)

Record details

NPI number1457938169
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMarch 27, 2021
Last updated in NPPESAugust 22, 2025
Certification dateAugust 22, 2025

Medicare enrollment

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

Medicare specialtySLEEP MEDICINE
Medical schoolNEW YORK COLLEGE OF OSTEO MEDICINE OF NEW YORK INSTITUTE OF TECHNOLOGY
Graduated 2021 (5 years in practice)
Group practice St Vincent Medical Education And Research Institute Inc — 299 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Erie