Ronald Nellen, DDS
NPI 1992719280 · Oral and Maxillofacial Surgery (Dentist) · Greenfield, WI
Ronald Nellen, DDS is a Oral and Maxillofacial Surgery (Dentist) provider in Greenfield, WI (NPI 1992719280).
Provider details
- NPI number
- 1992719280
- Entity type
- Individual
- Primary specialty
- Oral and Maxillofacial Surgery (Dentist)Dental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- Yes
- License
- 2699 (WI)
Specialties & taxonomies
Dental Providers
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
- 2006-07-29
- Last updated
- 2007-07-09
Frequently asked questions
- What is Ronald Nellen's NPI number?
- Ronald Nellen's National Provider Identifier (NPI) is 1992719280, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Nellen's specialty?
- Ronald Nellen is listed in the NPPES registry with a primary specialty of Oral and Maxillofacial Surgery (Dentist) (Dental Providers).
- Where is Ronald Nellen located?
- Ronald Nellen's practice location on file with NPPES is 4811 S 76th St, Greenfield, WI 53220-4364.
- What is Ronald Nellen's phone number?
- The practice phone number listed in the NPPES registry for Ronald Nellen is (414) 281-3344.
- Is Ronald Nellen's NPI active?
- Yes — Ronald Nellen's NPI (1992719280) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.