Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Caitlan Maura Ratterman, M.D.

Emergency Medicine Physician in Littleton, CO · enumerated 2013.

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

National Provider Identifier

1811333982

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Registry record

Entity type Individual (Type 1)

Name Dr. Caitlan Maura Ratterman

Credential M.D.

Sex Female

Practice address 9670 W. Coal Mine Ave. Suite 100, Suite 100, Littleton, CO, 80123

Phone (303) 725-5010

Fax (212) 263-6826

Enumeration date May 16, 2013

Last updated in NPPES May 14, 2019

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License DR0058076 (CO) Primary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License DR.0058076 (CO) Secondary

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

How do I verify Caitlan Ratterman's NPI record?

Cross-check NPI 1811333982 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1811333982 active?

Yes, as of the latest NPPES snapshot, NPI 1811333982 is active (record last updated 2019-05-14).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-05-14.