Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jennifer K Ess, MD

Pediatrics Physician in Denver, CO · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1114919644

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Jennifer K Ess

Credential MD

Sex Female

Practice address 301 W 6th Ave, Denver, CO, 80204

Phone (303) 436-6000

Enumeration date Aug 19, 2005

Last updated in NPPES Feb 7, 2024

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License DR.0071587 (CO) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Jennifer Ess?

Jennifer Ess is registered in NPPES with the primary taxonomy of Pediatrics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-07.