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

JOHN E ERTL MD
NPI 1316928633
Pediatrics in Danbury, CT

Q: What is John Ertl's NPI number?

The NPI number for John Ertl is 1316928633. It was assigned to this individual provider in the NPPES registry on November 14, 2005.

Q: What is John Ertl's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for John Ertl 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 26 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.

Active since November 14, 2005

41 GERMANTOWN RD, DANBURY, CT 06810(203) 744-1680(203) 792-6510 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About John E Ertl Md NPPES

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

JOHN E ERTL MD (NPI 1316928633) is an individual pediatrics provider in Danbury, Connecticut, licensed in Connecticut (020601) and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1316928633

Entity TypeIndividualMale

Primary Taxonomy208000000X

Provider Legal NameJOHN E ERTLCredential: MD

Location Address41 GERMANTOWN RDDanbury, CT 06810-4087

Mailing Address41 Germantown RdDanbury, CT 06810-4087 · (203) 744-1680 · Fax (203) 792-6510

Phone(203) 744-1680

Fax(203) 792-6510

Sole ProprietorNo

Enumeration DateNovember 14, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1316928633 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians

Taxonomy Code208000000X

License✔ Licensed in CT · 020601

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.

41 GERMANTOWN RD, Danbury, CT 06810

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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.

LEON A BACZESKI MD

Pediatrics

41 GERMANTOWN RD
DANBURY, CT 06810

Western Connecticut Planning Region (203) 744-1680

MS. LINDA A OSIKA PA-C

Physician Assistant

41 GERMANTOWN RD, SUITE B01
DANBURY, CT 06810

Western Connecticut Planning Region (203) 207-3300

AIDA DERVISEVIC M.D.

Internal Medicine

41 GERMANTOWN RD
DANBURY, CT 06810

Western Connecticut Planning Region (203) 743-9797

BRUCE W COHEN MD

Pediatrics

41 GERMANTOWN RD
DANBURY, CT 06810

Western Connecticut Planning Region (203) 744-1680

MRS. NICOLE ANN WOERING NP-C

Nurse Practitioner (Family)

41 GERMANTOWN RD
DANBURY, CT 06810

Western Connecticut Planning Region (203) 744-1680

ANDREA M. GALELLA P.A.

Physician Assistant

41 GERMANTOWN RD, SUITE 201 PEDIATRIC ASSOCIATES OF WESTERN CT
DANBURY, CT 06810

Western Connecticut Planning Region (203) 744-1680

ALEC FRANK KROSSER MD

Surgery (Vascular Surgery)

41 GERMANTOWN RD
DANBURY, CT 06810

Western Connecticut Planning Region (203) 794-5680

KATHLEEN MAXFIELD MD

Surgery (Vascular Surgery)

41 GERMANTOWN RD
DANBURY, CT 06810

Western Connecticut Planning Region (203) 399-0399

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 John Ertl's NPI number?

The NPI number for John Ertl is 1316928633. It was assigned to this individual provider in the NPPES registry on November 14, 2005.

Where is John Ertl located?

John Ertl practices at 41 Germantown Rd, Danbury, CT 06810. The listed phone number is (203) 744-1680.

What is John Ertl'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 John Ertl 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 26 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.