NPPES file of Aug 9, 2026

Diana E. Germosen, M.D.

Psychiatry Physician · Newark, DE

Diana E. Germosen, M.D. is a psychiatry physician with a practice address in Newark, Delaware, and NPI 1356582720, issued on Mar 16, 2009. Check the license (Delaware C1-0009965, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1356582720
Name
Diana E. Germosen
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
C1-0009965 DE
Self-reported in NPPES; status is on the state search
Practice location
100 Rockford Dr, Newark, DE 19713
Phone
(302) 996-5480
Enumerated
Mar 16, 2009
Record last updated
Aug 12, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20120803000055); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 100 Rockford Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Emily Bewley, LCSWClinical Social Worker1689106080
  2. Praful Desai, M.D.Psychiatry Physician1841383718
  3. Balfour GorePsychiatric/Mental Health Nurse Practitioner1154941029
  4. Alexander Jacobson, M.D.Psychiatry Physician1639199169
  5. Joshua MenardPsychiatric/Mental Health Registered Nurse1215368410
  6. Johanna Mojica, PHARMDPharmacist1124271135

Verify Diana E. Germosen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
    Search for license C1-0009965
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Delaware license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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75% fewer Medicare Part D claims than the average psychiatry physician in 2024

251 Medicare Part D claims for 49 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.

  1. Diana Germosen251
  2. Specialty average1,000

Most prescribed

  1. Aripiprazole18 claims
  2. Gabapentin16 claims
  3. Trazodone Hcl15 claims
  4. Quetiapine Fumarate13 claims
  5. Venlafaxine Hcl Er13 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.

Industry payments in 2024: $83.88

4 payments; by number, the most common kind was food and beverage; the largest payer was Indivior Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Diana Germosen$83.88
  2. Specialty average$4,954.93

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Uhs OF Rockford LLCNewark, DE

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Diana E. Germosen among 162 psychiatry physician records in Delaware

Diana E. Germosen, 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 2009, is newer than 55% of them.

  • NPI issued2009 · 55% of these records are older, 41% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 45% of these records are
  • Graduated1990 · median 2003 among the 73 with a school on file
  • Record last updated2016 · 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).

Psychiatry Physician providers in Delaware

There are 162 psychiatry physician records in Delaware.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Praful Desai, M.D.Newark, DE 197131841383718
  2. William Furey, DONewark, DE 197131326677972
  3. Saurabh Gupta, MDNewark, DE 197131740381334
  4. Alexander Jacobson, M.D.Newark, DE 197131639199169
  5. Saleem Khan, MDNewark, DE 197131487747358
  6. Salvatore Muleh, MDNewark, DE 197131578656443
  7. Parth Viroja, MDNewark, DE 197131639416019
  8. Nisha Withane, M.D.Newark, DE 197131407260177

Common questions

What is Diana E. Germosen, M.D.'s NPI number?

Diana E. Germosen, M.D.'s National Provider Identifier (NPI) is 1356582720, issued on Mar 16, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Diana E. Germosen, M.D. located?

The NPPES record lists a practice address at 100 Rockford Dr, Newark, DE, 19713. Phone: (302) 996-5480. Providers update this record themselves, so call before visiting.

How can I verify Diana E. Germosen, M.D.'s license?

NPPES lists Delaware license number C1-0009965, 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 Diana E. Germosen, M.D. prescribe under Medicare Part D?

In 2024, Diana E. Germosen, M.D. had 251 Medicare Part D claims for 49 beneficiaries; 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.