IndividualActive
Cathleen Ruff, PA
NPI 1336281039 · Physician Assistant · Denver, CO
Cathleen Ruff, PA is a Physician Assistant provider in Denver, CO (NPI 1336281039).
Provider details
- NPI number
- 1336281039
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- 858 (CO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
1400 Jackson St
Denver, CO 80206-2761
Phone: (303) 388-4461
Fax: (303) 270-2174
Street-level locationGet directions
Mailing address
1400 Jackson St
Denver, CO 80206-2761
Registry dates
- Enumerated
- 2007-02-12
- Last updated
- 2007-07-09
Frequently asked questions
- What is Cathleen Ruff's NPI number?
- Cathleen Ruff's National Provider Identifier (NPI) is 1336281039, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cathleen Ruff's specialty?
- Cathleen Ruff is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cathleen Ruff located?
- Cathleen Ruff's practice location on file with NPPES is 1400 Jackson St, Denver, CO 80206-2761.
- What is Cathleen Ruff's phone number?
- The practice phone number listed in the NPPES registry for Cathleen Ruff is (303) 388-4461.
- Is Cathleen Ruff's NPI active?
- Yes — Cathleen Ruff's NPI (1336281039) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.