Richard Mcmahon, MD
NPI 1255315578 · Hematology & Oncology Physician · Littleton, CO
Richard Mcmahon, MD is a Hematology & Oncology Physician provider in Littleton, CO (NPI 1255315578).
Provider details
- NPI number
- 1255315578
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 21567 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2005-11-30
- Last updated
- 2008-12-11
Frequently asked questions
- What is Richard Mcmahon's NPI number?
- Richard Mcmahon's National Provider Identifier (NPI) is 1255315578, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Richard Mcmahon's specialty?
- Richard Mcmahon is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Richard Mcmahon located?
- Richard Mcmahon's practice location on file with NPPES is 22 West Dry Creek Circle, Littleton, CO 80120.
- What is Richard Mcmahon's phone number?
- The practice phone number listed in the NPPES registry for Richard Mcmahon is (303) 730-4700.
- Is Richard Mcmahon's NPI active?
- Yes — Richard Mcmahon's NPI (1255315578) is active in the NPPES registry as of the last update on 2008-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.