IndividualActive
Frederick Knapp, D.O.
NPI 1972605939 · Ophthalmology Physician · Oceanside, CA
Frederick Knapp, D.O. is a Ophthalmology Physician provider in Oceanside, CA (NPI 1972605939).
Provider details
- NPI number
- 1972605939
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A4950 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
2420 Vista Way Ste 101
Oceanside, CA 92054-6190
Phone: (760) 722-5900
Fax: (760) 722-5999
Street-level locationGet directions
Mailing address
2420 Vista Way Ste 101
Oceanside, CA 92054-6190
Registry dates
- Enumerated
- 2006-09-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Frederick Knapp's NPI number?
- Frederick Knapp's National Provider Identifier (NPI) is 1972605939, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Knapp's specialty?
- Frederick Knapp is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Frederick Knapp located?
- Frederick Knapp's practice location on file with NPPES is 2420 Vista Way Ste 101, Oceanside, CA 92054-6190.
- What is Frederick Knapp's phone number?
- The practice phone number listed in the NPPES registry for Frederick Knapp is (760) 722-5900.
- Is Frederick Knapp's NPI active?
- Yes — Frederick Knapp's NPI (1972605939) 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.