NPPES file of Aug 9, 2026

Constance S. Gerassimakis, MD

General Practice Physician · Middletown, DE

Constance S. Gerassimakis, MD is a general practice physician with a practice address in Middletown, Delaware, and NPI 1588696058, issued on Jul 7, 2006. Check the license (Delaware C1-0003051, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1588696058
Name
Constance S. Gerassimakis
Credential
MD
Primary taxonomy
General Practice Physician 208D00000X
License numbers
C1-0003051 DE
D0065586 MD
35-067475 OH
35.067475 OH
Self-reported in NPPES; status is on the state search
Practice location
119 Cassina Dr, Middletown, DE 19709
Phone
(302) 378-6017
Enumerated
Jul 7, 2006
Record last updated
May 13, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
0264422 OH
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Constance S. Gerassimakis 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 C1-0003051
    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

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Constance S. Gerassimakis among 49 general practice physician records in Delaware

Constance S. Gerassimakis, MD is one of 49 general practice physician records with a practice address in Delaware. 37% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 37% newer
  • In a Medicare fileNo · 37% of these records are
  • In the CMS Doctors and Clinicians fileNo · 14% of these records are
  • Record last updated2021 · 82% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

General Practice Physician providers in Delaware

There are 49 general practice physician records in Delaware. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 general practice physician records with the nearest ZIP codes

  1. Gerard Kuhn, MDMiddletown, DE 197091851482236
  2. Gary Lytle, MDMiddletown, DE 197091760573141
  3. Vincent Schaller, MDHockessin, DE 197071730180696
  4. Ralph Burdick, D.O.Delaware City, DE 197061033225321
  5. Velma Scantlebury, MDNewark, DE 197131487608667
  6. Xin Liu, M.D.Claymont, DE 197031518129154
  7. Justin D'Antuono, MDNewark, DE 197021669676219
  8. Anna Kolano, D.O.Newark, DE 197021043301427

Common questions

What is Constance S. Gerassimakis, MD's NPI number?

Constance S. Gerassimakis, MD's National Provider Identifier (NPI) is 1588696058, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Constance S. Gerassimakis, MD located?

The NPPES record lists a practice address at 119 Cassina Dr, Middletown, DE, 19709. Phone: (302) 378-6017. Providers update this record themselves, so call before visiting.

How can I verify Constance S. Gerassimakis, MD's license?

NPPES lists Delaware license number C1-0003051, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.