Steven E. Diamond, D.O.
Family Medicine Physician · Wilmington, DE
Steven E. Diamond, D.O. is a family medicine physician with a practice address in Wilmington, Delaware, and NPI 1043323033, issued on Aug 16, 2006. Check the license (Delaware C2-0002978, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Steven E. Diamond
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- C2-0002978 DE
Self-reported in NPPES; status is on the state search - Practice location
- 900 Foulk RD, Wilmington, DE 19803
- Phone
- (302) 655-8868
- Enumerated
- Aug 16, 2006
- Record last updated
- Oct 31, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (302) 655-3744
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 518 in Delaware → Look up another NPI →
Also registered at 900 Foulk RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sohaib Usmani, DMDDentist1194882761
Verify Steven E. Diamond 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 C2-0002978Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average family medicine physician in 2024
54 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Santyl13 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.
Steven E. Diamond among 518 family medicine physician records in Delaware
Steven E. Diamond, D.O. is one of 518 family medicine physician records with a practice address in Delaware. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 49% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2012 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
163 family medicine physician records list a practice address in Wilmington
They are 163 of the 6,291 NPPES records with a practice address in Wilmington, and 518 family medicine physician records in Delaware.
All 518 in Delaware → Every provider in Wilmington → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- David Bercaw, MDWilmington, DE 198031205814241
- Heather Bittner-Fagan, MDWilmington, DE 198031013995059
- David Estock, M.D.Wilmington, DE 198031275533135
- Lawrence Markman, MDWilmington, DE 198031154313179
- Lisa Maxwell, MDWilmington, DE 198031316978786
- M Metzger, M.D.Wilmington, DE 198031275564957
- Matthew O'Brien, M.D.Wilmington, DE 198031417996935
- James Salva, M.D.Wilmington, DE 198031538104856
Common questions
What is Steven E. Diamond, D.O.'s NPI number?
Steven E. Diamond, D.O.'s National Provider Identifier (NPI) is 1043323033, issued on Aug 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Steven E. Diamond, D.O. located?
The NPPES record lists a practice address at 900 Foulk RD, Wilmington, DE, 19803. Phone: (302) 655-8868. Providers update this record themselves, so call before visiting.
How can I verify Steven E. Diamond, D.O.'s license?
NPPES lists Delaware license number C2-0002978, 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 Steven E. Diamond, D.O. prescribe under Medicare Part D?
In 2024, Steven E. Diamond, D.O. had 54 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.