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

Dr. John Daniel Rosenberger, MD

Individual provider Internal Medicine Physician · NPI 1467448050

Dr. John Daniel Rosenberger, MD is an Internal Medicine in Westfield, New York. Qualified in 1981, 45 years ago. Practices with Chautauqua Medical Practice PC, a 100-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New York and Pennsylvania.

Years since qualifying
45
Licensed in
NY, PA
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

158 E Main St
Westfield, NY 14787-1155
Phone: (716) 326-4686
Fax: (716) 326-4628
Show map & directions

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

Additional practice locations (1)

  • 4950 Buffalo Rd, Erie, PA 16510-2304 — (814) 899-7000

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 156606-1 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD482302 (PA)

Record details

NPI number1467448050
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 20, 2005
Last updated in NPPESNovember 10, 2023
Certification dateNovember 10, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1981 (45 years in practice)
Group practice Chautauqua Medical Practice Pc — 100 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare