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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. STEPHEN A HEMMERLY MD
NPI 1205585338
Pediatrics in Aurora, CO

Active since March 23, 2022
13123 E 16TH AVE, AURORA, CO 80045(720) 777-6181 Get Directions Write a Review

NPPES record last updated: July 12, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 12, 2026, Jul 1, 2025 (2 updates tracked since 2025).

About Dr. Stephen A Hemmerly Md NPPES

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

DR. STEPHEN A HEMMERLY MD (NPI 1205585338) is an individual pediatrics provider in Aurora, Colorado, licensed in Colorado (DR.0077657) and active in the NPI registry since March 2022.

NPPES Registry Identity

NPI1205585338
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. STEPHEN A HEMMERLYCredential: MD
Location Address13123 E 16TH AVEAurora, CO 80045-7106
Mailing Address13123 E 16th Ave, Mail Stop B395Aurora, CO 80045-7106 · (615) 574-5141
Phone(720) 777-6181
Sole ProprietorNo
Enumeration DateMarch 23, 2022
Last NPPES UpdateJuly 12, 20262 updates tracked since enumeration
NPPES CertifiedJuly 12, 2026
✔ NPI 1205585338 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CO · DR.0077657
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.
13123 E 16TH AVE, Aurora, CO 80045
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.Insurance ›

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.

ERIN TERAVEST PA
Physician Assistant (Surgical)
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-1234
MELISSA KAY FRAZER AA-C
Anesthesiologist Assistant
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-1234
RACHEL MARIE RANWEILER
Registered Nurse (Neonatal Intensive Care)
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-6857
DR. KATHRYN LYN PEGAN AU.D.
Audiologist
13123 E 16TH AVE, 2ND FLOOR OUTPATIENT PAVILION - AUDIOLOGY
AURORA, CO 80045
Adams County (720) 777-1961
MRS. KRISTEN L HOLDER FNP-C, APRN-BC
Nurse Practitioner (Psychiatric/Mental Health)
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-1234
MRS. JILL M MARKS RN, APN
Nurse Practitioner (Pediatrics)
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-1234
MRS. WENDELYN M BARRETT NNP
Registered Nurse (Neonatal Intensive Care)
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-6857
DR. TIMOTHY OWEN VANDERKOOY MD
Emergency Medicine (Pediatric Emergency Medicine)
13123 E 16TH AVE, AURORA, CO 80045-7106
AURORA, CO 80045
Adams County (720) 777-1234

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 Stephen Hemmerly's NPI number?

The NPI number for Stephen Hemmerly is 1205585338. It was assigned to this individual provider in the NPPES registry on March 23, 2022.

Where is Stephen Hemmerly located?

Stephen Hemmerly practices at 13123 E 16th Ave, Aurora, CO 80045. The listed phone number is (720) 777-6181.

What is Stephen Hemmerly's specialty?

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

What insurance does Stephen Hemmerly accept?

Health plans from Blue Cross and Blue Shield of Texas list Stephen Hemmerly as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Stephen Hemmerly was last updated on July 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 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.