Janet Merfeld, MD
NPI 1639165087 · Radiation Oncology Physician · Cedar Rapids, IA
Janet Merfeld, MD is a Radiation Oncology Physician provider in Cedar Rapids, IA (NPI 1639165087).
Provider details
- NPI number
- 1639165087
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 29948 (IA)
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
- 2005-09-21
- Last updated
- 2017-06-07
Frequently asked questions
- What is Janet Merfeld's NPI number?
- Janet Merfeld's National Provider Identifier (NPI) is 1639165087, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janet Merfeld's specialty?
- Janet Merfeld is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Janet Merfeld located?
- Janet Merfeld's practice location on file with NPPES is 701 10th Sest, Cedar Rapids, IA 52403-1251.
- What is Janet Merfeld's phone number?
- The practice phone number listed in the NPPES registry for Janet Merfeld is (319) 398-6180.
- Is Janet Merfeld's NPI active?
- Yes — Janet Merfeld's NPI (1639165087) is active in the NPPES registry as of the last update on 2017-06-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.