Frederick Ergen, M.D.
NPI 1518927466 · Emergency Medicine Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frederick Ergen, M.D. is a Emergency Medicine Physician provider in Knoxville, TN (NPI 1518927466).
Provider details
- NPI number
- 1518927466
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- 012250 (TN)
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
- 2006-03-24
- Last updated
- 2007-07-08
Frequently asked questions
- What is Frederick Ergen's NPI number?
- Frederick Ergen's National Provider Identifier (NPI) is 1518927466, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Ergen's specialty?
- Frederick Ergen is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Frederick Ergen located?
- Frederick Ergen's practice location on file with NPPES is 900 E Oak Hill Ave, Knoxville, TN 37917-4522.
- What is Frederick Ergen's phone number?
- The practice phone number listed in the NPPES registry for Frederick Ergen is (865) 545-8000.
- Does Frederick Ergen accept Medicare?
- Frederick Ergen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frederick Ergen's NPI active?
- Yes — Frederick Ergen's NPI (1518927466) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.