Melissa Knudson-Johnson, M.D.
NPI 1518124114 · Internal Medicine Physician · Casper, WY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Melissa Knudson-Johnson, M.D. is a Internal Medicine Physician provider in Casper, WY (NPI 1518124114).
Provider details
- NPI number
- 1518124114
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 10050A (WY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
- 2008-05-21
- Last updated
- 2021-06-07
- Certified
- 2021-06-07
Frequently asked questions
- What is Melissa Knudson-Johnson's NPI number?
- Melissa Knudson-Johnson's National Provider Identifier (NPI) is 1518124114, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Knudson-Johnson's specialty?
- Melissa Knudson-Johnson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Melissa Knudson-Johnson located?
- Melissa Knudson-Johnson's practice location on file with NPPES is 940 E 3rd St Ste 203, Casper, WY 82601-3251.
- What is Melissa Knudson-Johnson's phone number?
- The practice phone number listed in the NPPES registry for Melissa Knudson-Johnson is (307) 333-6940.
- Does Melissa Knudson-Johnson accept Medicare?
- Melissa Knudson-Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Melissa Knudson-Johnson's NPI active?
- Yes — Melissa Knudson-Johnson's NPI (1518124114) is active in the NPPES registry as of the last update on 2021-06-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.