Katharine Lopez Weymouth, M.D.
Psychiatry Physician · Wilmington, DE
Katharine Lopez Weymouth, M.D. is a psychiatry physician with a practice address in Wilmington, Delaware, and NPI 1376735522, issued on Aug 13, 2007. Check the license (Delaware C1-0008326, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Katharine Lopez Weymouth
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- C1-0008326 DE
Self-reported in NPPES; status is on the state search - Practice location
- 4001 Kennett Pike Ste 244, Wilmington, DE 19807
- Phone
- (302) 566-5020
- Enumerated
- Aug 13, 2007
- Record last updated
- Sep 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (302) 300-4666
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 162 in Delaware → Look up another NPI →
Also registered at 4001 Kennett Pike Ste 244
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Angela Granquist-Bowman, LPCMHMental Health Counselor1780148882
Verify Katharine Lopez Weymouth in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
Search for license C1-0008326Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average psychiatry physician in 2024
40 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Katharine Lopez Weymouth among 162 psychiatry physician records in Delaware
Katharine Lopez Weymouth, M.D. is one of 162 psychiatry physician records with a practice address in Delaware. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 38% of them.
- NPI issued2007 · 38% of these records are older, 49% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2021 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
83 psychiatry physician records list a practice address in Wilmington
They are 83 of the 6,291 NPPES records with a practice address in Wilmington, and 162 psychiatry physician records in Delaware.
All 162 in Delaware → Every provider in Wilmington → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Joseph Bryer, M.D.Wilmington, DE 198061619904331
- Jack Castro, M.D.Wilmington, DE 198061619319985
- Nicoleta Coconcea, M.D.Wilmington, DE 198081285729624
- Robert Cohn, M.D.Wilmington, DE 198061346315504
- Alexander Dever, M.D.Wilmington, DE 198061568444396
- Nidia Deyanez, MDWilmington, DE 198061851371447
- Kendall Dupree, MDWilmington, DE 198081730336603
- Sarah Falgowski, M.D.Wilmington, DE 198061851519797
Common questions
What is Katharine Lopez Weymouth, M.D.'s NPI number?
Katharine Lopez Weymouth, M.D.'s National Provider Identifier (NPI) is 1376735522, issued on Aug 13, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Katharine Lopez Weymouth, M.D. located?
The NPPES record lists a practice address at 4001 Kennett Pike Ste 244, Wilmington, DE, 19807. Phone: (302) 566-5020. Providers update this record themselves, so call before visiting.
How can I verify Katharine Lopez Weymouth, M.D.'s license?
NPPES lists Delaware license number C1-0008326, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katharine Lopez Weymouth, M.D. prescribe under Medicare Part D?
In 2024, Katharine Lopez Weymouth, M.D. had 40 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions 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.