Katherine K. Elder, PHD
Clinical Psychologist · Lewes, DE
Katherine K. Elder, PHD is a clinical psychologist with a practice address in Lewes, Delaware, and NPI 1316244700, issued on Feb 21, 2011. Check the license (Delaware B1-0001075, as entered in NPPES) with the Delaware board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine K. Elder
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License numbers
- B1-0001075 DE
PC0000534 DE
Self-reported in NPPES; status is on the state search - Practice location
- 31502 Heron Cir, Lewes, DE 19958
- Phone
- (609) 517-1529
- Enumerated
- Feb 21, 2011
- Record last updated
- Oct 7, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (302) 827-4856
- Medicare enrollment
- Enrolled (PECOS I20251023000188); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 168 in Delaware → Look up another NPI →
Verify Katherine K. Elder in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Delaware board licenses this profession
Search for license B1-0001075Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Delaware Psychological Services LLCLewes, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine K. Elder among 168 clinical psychologist records in Delaware
Katherine K. Elder, PHD is one of 168 clinical psychologist records with a practice address in Delaware. 18% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 53% of them.
- NPI issued2011 · 53% of these records are older, 43% newer
- In a Medicare fileYes · 18% of these records are
- In the CMS Doctors and Clinicians fileYes · 30% of these records are
- Graduated2013 · median 2007 among the 51 with a school on file
- Record last updated2016 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Psychologist providers in Delaware
There are 168 clinical psychologist records in Delaware.
All 168 in Delaware → Every provider in Lewes → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Peter Appel, PH.D.Lewes, DE 199581073616967
- John Billig, PH.D., ABPPLewes, DE 199581619992658
- Kelli Deiaco, PH.D.Lewes, DE 199581699945766
- Lindsay Haston, PSYDLewes, DE 199581871207969
- Deborah Stokes, PH.D.Lewes, DE 199581346497880
- Richard Todd, PH.DLewes, DE 199581154520393
- Mary Vaughn Moor, PSY.D.Lewes, DE 199581558648519
- Edward Wilson, PH.D.Lewes, DE 199581194837500
Common questions
What is Katherine K. Elder, PHD's NPI number?
Katherine K. Elder, PHD's National Provider Identifier (NPI) is 1316244700, issued on Feb 21, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Katherine K. Elder, PHD located?
The NPPES record lists a practice address at 31502 Heron Cir, Lewes, DE, 19958. Phone: (609) 517-1529. Providers update this record themselves, so call before visiting.
How can I verify Katherine K. Elder, PHD's license?
NPPES lists Delaware license number B1-0001075, as entered by the provider. Search the Delaware board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.