NPPES file of Aug 9, 2026

Gerber De Leon, MD

Internal Medicine Physician · Bridgeport, CT

Gerber De Leon, MD is an internal medicine physician with a practice address in Bridgeport, Connecticut, and NPI 1609496348, issued on Apr 22, 2020. Check the license (Connecticut 73604, as entered in NPPES) on the Connecticut Medical Examining Board; 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
1609496348
Name
Gerber De Leon
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
73604 CT
Self-reported in NPPES; status is on the state search
Practice location
267 Grant St, Bridgeport, CT 06610
Phone
(203) 688-1734
Enumerated
Apr 22, 2020
Record last updated
Aug 1, 2023
Medicare enrollment
Enrolled (PECOS I20230728001119); 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 267 Grant St

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

  1. Justin AbbateCertified Registered Nurse Anesthetist1811780497
  2. Mahmoud AbdelhadiHospitalist Physician1376116574
  3. Shaun AbidStudent in an Organized Health Care Education/Training Program1194428565
  4. Kwame Adjei-SefahStudent in an Organized Health Care Education/Training Program1306648589
  5. Khashayar AfshariStudent in an Organized Health Care Education/Training Program1942002092
  6. Shadi Afyouni, MDStudent in an Organized Health Care Education/Training Program1023811031

Verify Gerber De Leon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 73604
    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 Connecticut 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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93% fewer Medicare Part D claims than the average internal medicine physician in 2024

212 Medicare Part D claims for 78 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Gerber De Leon212
  2. Specialty average3,176

Most prescribed

  1. Prednisone17 claims
  2. Amlodipine Besylate16 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.

Bills Medicare through 2 group practices

  1. Cogent Medical Care PCNyack, NY
  2. Northeast Medical Group IncBridgeport, CT

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

Gerber De Leon among 2,623 internal medicine physician records in Connecticut

Gerber De Leon, MD is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 88% of them.

  • NPI issued2020 · 88% of these records are older, 9% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2020 · median 2004 among the 1,646 with a school on file
  • Record last updated2023 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

130 internal medicine physician records list a practice address in Bridgeport

They are 130 of the 2,980 NPPES records with a practice address in Bridgeport, and 2,623 internal medicine physician records in Connecticut.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Yaw Adjepong, MDBridgeport, CT 066101831168996
  2. Frederick Apiado, M.D.Bridgeport, CT 066101225211097
  3. Vivian ArgentoBridgeport, CT 066101285684720
  4. Freda Boateng, M.D.Bridgeport, CT 066101386832848
  5. Doru Bordea, M.D.Bridgeport, CT 066101912945429
  6. Nicholas Dainiak, M.D.Bridgeport, CT 066101396713467
  7. Angelapia Degirolamo, M.D.Bridgeport, CT 066101023087996
  8. Warren Heller, M.D.Bridgeport, CT 066101578529228

Common questions

What is Gerber De Leon, MD's NPI number?

Gerber De Leon, MD's National Provider Identifier (NPI) is 1609496348, issued on Apr 22, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Gerber De Leon, MD located?

The NPPES record lists a practice address at 267 Grant St, Bridgeport, CT, 06610. Phone: (203) 688-1734. Providers update this record themselves, so call before visiting.

How can I verify Gerber De Leon, MD's license?

NPPES lists Connecticut license number 73604, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gerber De Leon, MD prescribe under Medicare Part D?

In 2024, Gerber De Leon, MD had 212 Medicare Part D claims for 78 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.