Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Martha E Merrill-Hall, CNM

Advanced Practice Midwife in Denver, CO · enumerated 2005.

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

National Provider Identifier

1164411906

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Registry record

Entity type Individual (Type 1)

Name Mrs. Martha E Merrill-Hall

Credential CNM

Sex Female

Practice address 1960 Ogden St, Suite320, Denver, CO, 80218

Phone (303) 318-2620

Fax (303) 318-2629

Enumeration date Oct 14, 2005

Last updated in NPPES Jun 26, 2020

Taxonomy & licenses

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License 235953 (CA) Secondary

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License 51684 (CO) Primary

CNM · Certified Nurse Midwife: An advanced practice nurse specializing in pregnancy, childbirth, and reproductive care. About the CNM credential

Other identifiers

Identifier	Type	State	Issuer
7516842	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

What is the NPI number for Martha Merrill-Hall?

The National Provider Identifier (NPI) for Martha Merrill-Hall is 1164411906, a Type 1 (individual) record in the CMS NPPES registry.

Where does Martha Merrill-Hall practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-26.