William Harlan, DO
NPI 1225089998 · Emergency Medicine Physician · Greenville, OH
William Harlan, DO is a Emergency Medicine Physician provider in Greenville, OH (NPI 1225089998).
Provider details
- NPI number
- 1225089998
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 34004345H (OH)
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
- 2006-05-15
- Last updated
- 2011-05-13
Frequently asked questions
- What is William Harlan's NPI number?
- William Harlan's National Provider Identifier (NPI) is 1225089998, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Harlan's specialty?
- William Harlan is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Harlan located?
- William Harlan's practice location on file with NPPES is 835 Sweitzer St, Greenville, OH 45331-1007.
- What is William Harlan's phone number?
- The practice phone number listed in the NPPES registry for William Harlan is (937) 548-1141.
- Is William Harlan's NPI active?
- Yes — William Harlan's NPI (1225089998) is active in the NPPES registry as of the last update on 2011-05-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.