Katharine Markham, RDN
NPI 1255958112 · Registered Dietitian · Missoula, MT
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katharine Markham, RDN is a Registered Dietitian provider in Missoula, MT (NPI 1255958112).
Provider details
- NPI number
- 1255958112
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RDN
- Sex
- Female
- Sole proprietor
- No
- License
- 88245 (MT)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 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
- 2020-06-26
- Last updated
- 2025-05-19
- Certified
- 2025-05-19
Frequently asked questions
- What is Katharine Markham's NPI number?
- Katharine Markham's National Provider Identifier (NPI) is 1255958112, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katharine Markham's specialty?
- Katharine Markham is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Katharine Markham located?
- Katharine Markham's practice location on file with NPPES is 725 W Alder St Ste 28, Missoula, MT 59802-4026.
- What is Katharine Markham's phone number?
- The practice phone number listed in the NPPES registry for Katharine Markham is (406) 239-0078.
- Does Katharine Markham accept Medicare?
- Katharine Markham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katharine Markham's NPI active?
- Yes — Katharine Markham's NPI (1255958112) is active in the NPPES registry as of the last update on 2025-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.