Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Erica R Drennen, MD

Obstetrics & Gynecology Physician in Parker, CO · enumerated 2007.

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

National Provider Identifier

1982804837

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Registry record

Entity type Individual (Type 1)

Name Dr. Erica R Drennen

Credential MD

Sex Female

Practice address 9403 Crown Crest Blvd Ste 200, Parker, CO, 80138

Phone (720) 721-1670

Fax (720) 721-8117

Enumeration date Jul 19, 2007

Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 50069 (CO) Primary

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

Other identifiers

Identifier	Type	State	Issuer
33584281	Medicaid	CO	-

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

Where does Erica Drennen practice?

The practice location on file with NPPES is in Parker, CO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Erica Drennen?

The National Provider Identifier (NPI) for Erica Drennen is 1982804837, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.