Stephen Merrill, MD
NPI 1144246489 · Emergency Medicine Physician · Janesville, WI
Stephen Merrill, MD is a Emergency Medicine Physician provider in Janesville, WI (NPI 1144246489).
Provider details
- NPI number
- 1144246489
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036049241 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
19 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
- 2006-07-13
- Last updated
- 2011-11-14
Frequently asked questions
- What is Stephen Merrill's NPI number?
- Stephen Merrill's National Provider Identifier (NPI) is 1144246489, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Merrill's specialty?
- Stephen Merrill is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Merrill located?
- Stephen Merrill's practice location on file with NPPES is 3524 E Milwaukee St, Janesville, WI 53546-1626.
- What is Stephen Merrill's phone number?
- The practice phone number listed in the NPPES registry for Stephen Merrill is (608) 756-7100.
- Is Stephen Merrill's NPI active?
- Yes — Stephen Merrill's NPI (1144246489) is active in the NPPES registry as of the last update on 2011-11-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.