Tracey Glenn O'Brien, MD
Critical Care Medicine (Internal Medicine) Physician · Bridgeport, CT
Tracey Glenn O'Brien, MD is a critical care medicine (internal medicine) physician with a practice address in Bridgeport, Connecticut, and NPI 1467914630, issued on Apr 4, 2019. Check the license (Connecticut 077052, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Tracey Glenn O'Brien
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- 077052 CT
Self-reported in NPPES; status is on the state search - Practice location
- 2800 Main St, Bridgeport, CT 06606
- Phone
- (475) 210-5663
- Enumerated
- Apr 4, 2019
- Record last updated
- May 10, 2024
- Fax
- (475) 210-4079
- Medicare enrollment
- Enrolled (PECOS I20240517001643); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 40 in Connecticut → Look up another NPI →
Also registered at 2800 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Erica Acquarulo, PA-CPhysician Assistant1982468799
- Adekola Adedeji, MD, MPHInfectious Disease Physician1285190843
- Jite Adeniran, M.D.Internal Medicine Physician1073965562
- Edin AdilovicHospitalist Physician1962993592
- Monica Ahern Lockwood, MDInternal Medicine Physician1487834917
Verify Tracey Glenn O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 077052Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $50.11
2 payments; by number, the most common kind was food and beverage; the largest payer was Ambu Inc. The 2,708 providers of this specialty with any payment received $2,958.68 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Hartford Healthcare Medical Group Specialists PLLCBridgeport, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tracey Glenn O'Brien among 40 critical care medicine (internal medicine) physician records in Connecticut
Tracey Glenn O'Brien, MD is one of 40 critical care medicine (internal medicine) physician records with a practice address in Connecticut. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 88% of them.
- NPI issued2019 · 88% of these records are older, 8% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 88% of these records are
- Graduated2019 · median 2004 among the 35 with a school on file
- Record last updated2024 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Connecticut
There are 40 critical care medicine (internal medicine) physician records in Connecticut.
All 40 in Connecticut → Every provider in Bridgeport → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Robbert Crusio, MDBridgeport, CT 066061316132962
- William Fitzgerald, M.D.Bridgeport, CT 066061356485999
- Alexander Fleming-NouriBridgeport, CT 066061083279954
- Zaffar Haque, M.D.Bridgeport, CT 066061912059502
- Yanxi Jiang-NastBridgeport, CT 066061649899170
- Ishan Malhotra, M.B.B.S.Bridgeport, CT 066061083960934
- David Kaufman, MDBridgeport, CT 066101629000849
- Sandra Patrucco Reyes, MDBridgeport, CT 066101336644715
Common questions
What is Tracey Glenn O'Brien, MD's NPI number?
Tracey Glenn O'Brien, MD's National Provider Identifier (NPI) is 1467914630, issued on Apr 4, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Tracey Glenn O'Brien, MD located?
The NPPES record lists a practice address at 2800 Main St, Bridgeport, CT, 06606. Phone: (475) 210-5663. Providers update this record themselves, so call before visiting.
How can I verify Tracey Glenn O'Brien, MD's license?
NPPES lists Connecticut license number 077052, 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.
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.