Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Madelyn E. Rosenthal, MD

Pulmonary Disease Physician in Aspen, CO · enumerated 2013.

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

National Provider Identifier

1124461439

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Registry record

Entity type Individual (Type 1)

Name Madelyn E. Rosenthal

Credential MD

Sex Female

Practice address 802 E Cooper Ave Apt 2, Aspen, CO, 81611

Phone (817) 271-1212

Fax (970) 616-6742

Enumeration date Apr 17, 2013

Last updated in NPPES Aug 25, 2025

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 35.136808 (OH) Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License T0910 (TX) Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License DR.0071947 (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

Is NPI 1124461439 active?

Yes, as of the latest NPPES snapshot, NPI 1124461439 is active (record last updated 2025-08-25).

How do I verify Madelyn Rosenthal's NPI record?

Cross-check NPI 1124461439 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-25.