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

Dr. Stephen G. Diamantoni, MD

Individual provider Family Medicine Physician · NPI 1831240100

Dr. Stephen G. Diamantoni, MD is a Family Practice in Lancaster, Pennsylvania. Graduated from Hahnemann University College of Medicine in 1982, 44 years ago. Practices with Stephen G. Diamantoni MD and Associates Family Practice, PC, a 6-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Pennsylvania.

Years since qualifying
44
Trained at
Hahnemann University College of Medicine
Licensed in
PA
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

734 N Franklin St
Lancaster, PA 17602-2176
Phone: (717) 295-2323
Fax: (717) 295-7294
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MD029374E (PA)

Record details

NPI number1831240100
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 15, 2007
Last updated in NPPESJune 7, 2011
Mailing address734 N Franklin St, Lancaster, PA 17602-2176

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolHAHNEMANN UNIVERSITY COLLEGE OF MEDICINE
Graduated 1982 (44 years in practice)
Group practice Stephen G. Diamantoni Md And Associates Family Practice, P.C. — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Other providers in Lancaster