Richard Mullen
NPI 1275289878 · Psychiatric/Mental Health Registered Nurse · Denver, CO
Richard Mullen is a Psychiatric/Mental Health Registered Nurse provider in Denver, CO (NPI 1275289878).
Provider details
- NPI number
- 1275289878
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Registered NurseNursing Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- RN.1670316 (CO)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 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
Mailing address
Registry dates
- Enumerated
- 2022-02-23
- Last updated
- 2022-02-23
- Certified
- 2022-02-23
Frequently asked questions
- What is Richard Mullen's NPI number?
- Richard Mullen's National Provider Identifier (NPI) is 1275289878, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Richard Mullen's specialty?
- Richard Mullen is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Registered Nurse (Nursing Service Providers).
- Where is Richard Mullen located?
- Richard Mullen's practice location on file with NPPES is 2929 W 10th Ave, Denver, CO 80204-3363.
- What is Richard Mullen's phone number?
- The practice phone number listed in the NPPES registry for Richard Mullen is (303) 504-6500.
- Is Richard Mullen's NPI active?
- Yes — Richard Mullen's NPI (1275289878) is active in the NPPES registry as of the last update on 2022-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.