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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JONATHAN CHARLES KLONTZ M.D.
NPI 1730150418
Pediatrics in Olney, MD

Active since January 30, 2006
18109 PRINCE PHILIP DR, SUITE 375, OLNEY, MD 20832(301) 774-5800 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Jonathan Charles Klontz M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JONATHAN CHARLES KLONTZ M.D. (NPI 1730150418) is an individual pediatrics provider in Olney, Maryland, licensed in Maryland (H40842) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1730150418
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. JONATHAN CHARLES KLONTZCredential: M.D.
Location Address18109 PRINCE PHILIP DR, SUITE 375Olney, MD 20832-1519
Mailing Address18109 Prince Philip Dr, Suite 375Olney, MD 20832-1519 · (301) 774-5800
Phone(301) 774-5800
Sole ProprietorNo
Enumeration DateJanuary 30, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1730150418 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in MD · H40842
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
18109 PRINCE PHILIP DR, Olney, MD 20832
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SHAWN CHONG PA-C
Physician Assistant (Surgical)
18109 PRINCE PHILIP DR, SUITE 300
OLNEY, MD 20832
Montgomery County (301) 570-8554
DR. JOSHUA LOMKE DDS
Dentist
18109 PRINCE PHILIP DR, SUITE 270
OLNEY, MD 20832
Montgomery County (301) 260-0700
MARY PAT P HULTENG PTA
Physical Therapy Assistant
18109 PRINCE PHILIP DR
OLNEY, MD 20832
Montgomery County (301) 540-6140
MERCEDES BRITO PTA
Physical Therapy Assistant
18109 PRINCE PHILIP DR
OLNEY, MD 20832
Montgomery County (301) 540-6140
ANDREA MARIE GERACI NP
Nurse Practitioner (Family)
18109 PRINCE PHILIP DR, SUITE B200
OLNEY, MD 20832
Montgomery County (301) 875-1494
JUSTICE LYNAEE MCFARLAND
Student in an Organized Health Care Education/Training Program
18109 PRINCE PHILIP DR
OLNEY, MD 20832
Montgomery County (240) 559-5350
DR. CARTER WALLACE MITCHELL M.D.
Orthopaedic Surgery (Sports Medicine)
18109 PRINCE PHILIP DR, SUITE 325
OLNEY, MD 20832
Montgomery County (301) 774-8958
MARIA ELENA MARCOS ESPINA P.A.-C
Physician Assistant (Surgical)
18109 PRINCE PHILIP DR, SUITE 300
OLNEY, MD 20832
Montgomery County (301) 570-7203

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Jonathan Klontz's NPI number?

The NPI number for Jonathan Klontz is 1730150418. It was assigned to this individual provider in the NPPES registry on January 30, 2006.

Where is Jonathan Klontz located?

Jonathan Klontz practices at 18109 Prince Philip Dr Suite 375, Olney, MD 20832. The listed phone number is (301) 774-5800.

What is Jonathan Klontz's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

When was this NPI record last updated?

The NPPES record for Jonathan Klontz was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.