What is Catherine Grinnell's NPI number?

Catherine Grinnell's National Provider Identifier (NPI) is 1871134528, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Catherine Grinnell's specialty?

Catherine Grinnell is listed in the NPPES registry with a primary specialty of Advanced Practice Midwife (Physician Assistants & Advanced Practice Nursing Providers).

Where is Catherine Grinnell located?

Catherine Grinnell's practice location on file with NPPES is 790 Delaware St, Denver, CO 80204-4532.

What is Catherine Grinnell's phone number?

The practice phone number listed in the NPPES registry for Catherine Grinnell is (303) 436-4949.

Does Catherine Grinnell accept Medicare?

Catherine Grinnell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Catherine Grinnell's NPI active?

Yes — Catherine Grinnell's NPI (1871134528) is active in the NPPES registry as of the last update on 2024-06-05.

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Catherine Grinnell, CNM

NPI 1871134528 · Advanced Practice Midwife · Denver, CO

Catherine Grinnell, CNM is a Advanced Practice Midwife provider in Denver, CO (NPI 1871134528).

Provider details

NPI number: 1871134528
Entity type: Individual
Primary specialty: Advanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers
Credential: CNM
Sex: Female
Sole proprietor: No

Practice location

790 Delaware St

Denver, CO 80204-4532

Phone: (303) 436-4949

Street-level locationGet directions

More CO providers

Mailing address

777 Bannock St

Denver, CO 80204-4597

Specialties & taxonomies

Advanced Practice MidwifePrimary367A00000XLicense APN.0995992-CNM (CO)
Physician Assistants & Advanced Practice Nursing Providers
Advanced Practice Midwife367A00000X
Physician Assistants & Advanced Practice Nursing Providers
Advanced Practice Midwife367A00000X
Physician Assistants & Advanced Practice Nursing Providers

Additional practice locations (1)

1508 Division St Ste 205
Oregon City, OR 97045-1585
Phone: (503) 657-1071
Fax: (503) 657-3321

Enrolled with Medicare as Practitioner - Certified Nurse Midwife (cnm) · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(64/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
7 yrs in NPPES registry
Profile completeness38% of score
83% of core fields populated
Practice footprint23% of score
2 documented practice locations

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Enumerated: 2019-10-03
Last updated: 2024-06-05
Certified: 2024-06-05

Frequently asked questions

What is Catherine Grinnell's NPI number?: Catherine Grinnell's National Provider Identifier (NPI) is 1871134528, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Catherine Grinnell's specialty?: Catherine Grinnell is listed in the NPPES registry with a primary specialty of Advanced Practice Midwife (Physician Assistants & Advanced Practice Nursing Providers).
Where is Catherine Grinnell located?: Catherine Grinnell's practice location on file with NPPES is 790 Delaware St, Denver, CO 80204-4532.
What is Catherine Grinnell's phone number?: The practice phone number listed in the NPPES registry for Catherine Grinnell is (303) 436-4949.
Does Catherine Grinnell accept Medicare?: Catherine Grinnell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Catherine Grinnell's NPI active?: Yes — Catherine Grinnell's NPI (1871134528) is active in the NPPES registry as of the last update on 2024-06-05.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Additional practice locations (1)

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (1)

Profile Score

Frequently asked questions