Frederick Oeltjen, PH.D.
NPI 1942348487 · Clinical Psychologist · Rockville, MD
Frederick Oeltjen, PH.D. is a Clinical Psychologist provider in Rockville, MD (NPI 1942348487).
Provider details
- NPI number
- 1942348487
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 01189 (MD)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
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
- 2007-02-04
- Last updated
- 2007-07-08
Frequently asked questions
- What is Frederick Oeltjen's NPI number?
- Frederick Oeltjen's National Provider Identifier (NPI) is 1942348487, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Oeltjen's specialty?
- Frederick Oeltjen is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Frederick Oeltjen located?
- Frederick Oeltjen's practice location on file with NPPES is 20 Courthouse Sq, Rockville, MD 20850-2336.
- What is Frederick Oeltjen's phone number?
- The practice phone number listed in the NPPES registry for Frederick Oeltjen is (301) 424-6955.
- Is Frederick Oeltjen's NPI active?
- Yes — Frederick Oeltjen's NPI (1942348487) 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.