NPPES file of Aug 9, 2026

Patrick Paul Mastroianni, M.D.

Specialist · Bridgeport, CT

Patrick Paul Mastroianni, M.D. is a specialist with a practice address in Bridgeport, Connecticut, and NPI 1073539367, issued on Jul 13, 2006. Check the license (Connecticut 023870, as entered in NPPES) with the Connecticut board that licenses this profession; 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
1073539367
Name
Patrick Paul Mastroianni
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
023870 CT
Self-reported in NPPES; status is on the state search
Practice location
340 Capitol Ave, Bridgeport, CT 06606
Phone
(203) 336-3306
Enumerated
Jul 13, 2006
Record last updated
Apr 19, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(203) 336-5802
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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8 nearest specialist records → All 397 in Connecticut → Look up another NPI →

Also registered at 340 Capitol Ave

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

  1. James Berg, MSPTPhysical Therapist1407875370
  2. Kathleen Carius, APRNPsychiatric/Mental Health Nurse Practitioner1558489161
  3. Daniel Nijensohn, M.D.Neurological Surgery Physician1164452413
  4. Michael Opalak, MDNeurological Surgery Physician1699783647

Verify Patrick Paul Mastroianni in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
    Search for license 023870    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
Find the Connecticut license search

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93% fewer Medicare Part D claims than the average specialist in 2024

100 Medicare Part D claims, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.

  1. Patrick Mastroianni100
  2. Specialty average1,380

Most prescribed

  1. Amitriptyline Hcl13 claims
  2. Metformin Hcl Er13 claims
  3. Metoprolol Succinate11 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.

Patrick Paul Mastroianni among 397 specialist records in Connecticut

Patrick Paul Mastroianni, M.D. is one of 397 specialist records with a practice address in Connecticut. 25% 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 14% of them.

  • NPI issued2006 · 14% of these records are older, 55% newer
  • In a Medicare fileYes · 25% of these records are
  • In the CMS Doctors and Clinicians fileNo · 15% of these records are
  • Record last updated2010 · 81% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in Connecticut

There are 397 specialist records in Connecticut.

All 397 in Connecticut → Every provider in Bridgeport → Specialist nationwide →

The 8 specialist records with the nearest ZIP codes

  1. Richard Link, M.D.Bridgeport, CT 066061750314712
  2. Tjuana StewartBridgeport, CT 066061386193993
  3. Justin Shay, L.M.TBridgeport, CT 066051134406382
  4. Rafael Mediavilla, M.S-ESLBridgeport, CT 066041225379449
  5. Terrence Robinson-Brown, MSBridgeport, CT 066081306193651
  6. David Stickney, MS, ATC, PESBridgeport, CT 066041770817876
  7. Zosimo Adefuin, MDBridgeport, CT 066101598763252
  8. Sarah Allen, M.D.Bridgeport, CT 066101376854141

Common questions

What is Patrick Paul Mastroianni, M.D.'s NPI number?

Patrick Paul Mastroianni, M.D.'s National Provider Identifier (NPI) is 1073539367, issued on Jul 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Patrick Paul Mastroianni, M.D. located?

The NPPES record lists a practice address at 340 Capitol Ave, Bridgeport, CT, 06606. Phone: (203) 336-3306. Providers update this record themselves, so call before visiting.

How can I verify Patrick Paul Mastroianni, M.D.'s license?

NPPES lists Connecticut license number 023870, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Patrick Paul Mastroianni, M.D. prescribe under Medicare Part D?

In 2024, Patrick Paul Mastroianni, M.D. had 100 Medicare Part D claims; the average among specialist prescribers was 1,380. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.