Phyllis Margaret Smoyer, M.D.
Psychiatry Physician · Claymont, DE
Phyllis Margaret Smoyer, M.D. is a psychiatry physician with a practice address in Claymont, Delaware, and NPI 1487773891, issued on Mar 28, 2007. Check the license (Delaware MD C10000866, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Phyllis Margaret Smoyer
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD C10000866 DE
Self-reported in NPPES; status is on the state search - Practice location
- 3301 Green St, Claymont, DE 19703
- Phone
- (302) 792-2757
- Enumerated
- Mar 28, 2007
- Record last updated
- May 20, 2026
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 162 in Delaware → Look up another NPI →
Also registered at 3301 Green St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gloria Boyd, RNSchool Registered Nurse1073863072
- Susan Cropper, RNRegistered Nurse1497199111
- Pamela DavisAddiction (Substance Use Disorder) Counselor1588990816
- Justin FoxFamily Nurse Practitioner1710841747
- Gena HartCounselor1821413824
- Tanya Johnson, MAProfessional Counselor1356745038
Verify Phyllis Margaret Smoyer 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 MD C10000866Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average psychiatry physician in 2024
100 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.
Most prescribed
- Alprazolam14 claims
- Amitriptyline Hcl13 claims
- Olanzapine13 claims
- Perphenazine13 claims
- Thioridazine Hcl12 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.
Phyllis Margaret Smoyer among 162 psychiatry physician records in Delaware
Phyllis Margaret Smoyer, 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 updated2026 · 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).
2 psychiatry physician records list a practice address in Claymont
They are 2 of the 243 NPPES records with a practice address in Claymont, and 162 psychiatry physician records in Delaware.
All 162 in Delaware → Every provider in Claymont → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Scott Houser, M.D.Claymont, DE 197031093844771
- Panna Jolapara, MDNewark, DE 197021033146204
- Jay Weisberg, MDNewark, DE 197021669441648
- Sharon Zwillinger, MDHockessin, DE 197071558450940
- Patricia Figgs, M.D.Middletown, DE 197091437449667
- Dilipkumar Joshi, M.D.Newark, DE 197111669565537
- Jeet Joshi, M.D.Newark, DE 197111356634901
- Praful Desai, M.D.Newark, DE 197131841383718
Common questions
What is Phyllis Margaret Smoyer, M.D.'s NPI number?
Phyllis Margaret Smoyer, M.D.'s National Provider Identifier (NPI) is 1487773891, issued on Mar 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Phyllis Margaret Smoyer, M.D. located?
The NPPES record lists a practice address at 3301 Green St, Claymont, DE, 19703. Phone: (302) 792-2757. Providers update this record themselves, so call before visiting.
How can I verify Phyllis Margaret Smoyer, M.D.'s license?
NPPES lists Delaware license number MD C10000866, 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 Phyllis Margaret Smoyer, M.D. prescribe under Medicare Part D?
In 2024, Phyllis Margaret Smoyer, M.D. had 100 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.