Frederick Zwartverwer, M.D.
NPI 1538192950 · Pediatrics Physician · Klamath Falls, OR
Frederick Zwartverwer, M.D. is a Pediatrics Physician provider in Klamath Falls, OR (NPI 1538192950).
Provider details
- NPI number
- 1538192950
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- OR11378 (OR)
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
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
- 2006-07-09
- Last updated
- 2013-04-18
Frequently asked questions
- What is Frederick Zwartverwer's NPI number?
- Frederick Zwartverwer's National Provider Identifier (NPI) is 1538192950, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Zwartverwer's specialty?
- Frederick Zwartverwer is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Frederick Zwartverwer located?
- Frederick Zwartverwer's practice location on file with NPPES is 3001 Daggett Ave, Klamath Falls, OR 97601-1114.
- What is Frederick Zwartverwer's phone number?
- The practice phone number listed in the NPPES registry for Frederick Zwartverwer is (541) 851-4800.
- Is Frederick Zwartverwer's NPI active?
- Yes — Frederick Zwartverwer's NPI (1538192950) is active in the NPPES registry as of the last update on 2013-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.