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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Rayna Lin Trietsch, M.D.

Obstetrics & Gynecology Physician in Littleton, CO · enumerated 2017 · practices at Ob-Gyn Affiliates.

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

National Provider Identifier

1891221859

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Registry record

Entity type Individual (Type 1)
Name Rayna Lin Trietsch
Credential M.D.
Sex Female
Practice address 7720 S Broadway Ste 440, Littleton, CO, 80122
Phone (303) 795-3568
Enumeration date May 11, 2017
Last updated in NPPES Aug 25, 2021

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License DR.0065878 (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.

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Frequently asked questions

Is NPI 1891221859 active?
Yes, as of the latest NPPES snapshot, NPI 1891221859 is active (record last updated 2021-08-25).
How do I verify Rayna Trietsch's NPI record?
Cross-check NPI 1891221859 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-25.