Dr. Robert Edwin O' Sullivan, MD

  • Bridgeport, CT
  • OB-GYN
NPI1053751271PAC ID5496024655
Part D claims, 2024
41
Hospital affiliations
1
Industry payments
$67
Medical groups
2
State license
1
Practice address
982 East Main Street, Bridgeport, CT 06608
Practice phone
Call (203) 696-3260
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

OPTIMUS at East Main

FQHC - Main Site · Bridgeport, Connecticut

See all 5 affiliations

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Dr. Robert Edwin O' Sullivan is an OB-GYN in Bridgeport, Connecticut

Dr. O' Sullivan practices at OPTIMUS at East Main in Bridgeport, Connecticut.

Dr. O' Sullivan's NPI, 1053751271, was assigned on July 2, 2013. Dr. O' Sullivan graduated from University College Cork Faculty of Medicine in 2007. Dr. O' Sullivan holds Connecticut license 55690.

NPI and contact details
Medicare PAC ID
5496024655
NPI enumeration date
July 2, 2013
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(203) 696-3260
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
45
Medical school graduation
2007

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Robert Edwin O' Sullivan practices at OPTIMUS at East Main in Bridgeport, Connecticut

Dr. O' Sullivan's primary practice is OPTIMUS at East Main, at 982 East Main Street, Bridgeport, CT 06608 in Greater Bridgeport County. The practice phone is (203) 696-3260.

  • OPTIMUS at East Main
    982 East Main Street, Bridgeport, CT 06608 · Greater Bridgeport CountyPhone(203) 696-3260

Source: Dmand AI Affiliation Data

Dr. Robert Edwin O' Sullivan is affiliated with 3 sites of care and 2 medical groups

Dr. O' Sullivan's primary practice is OPTIMUS at East Main in Bridgeport, Connecticut. Dr. O' Sullivan is also affiliated with Bridgeport Hospital. The medical group on file is Northeast Medical Group. Dmand AI also links Dr. O' Sullivan to 1 more community health center and 1 medical group, each named with a free account. Dr. O' Sullivan's employer is on file too: a community health center (fqhc).

See all 5 affiliations for Dr. O' Sullivan

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Robert Edwin O' Sullivan's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O' Sullivan practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
OPTIMUS at East MainAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Robert Edwin O' Sullivan is one of 591 OB-GYNs in Connecticut

Obstetrics and gynecology is Dr. O' Sullivan's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. O' Sullivan is licensed in Connecticut.

Specialties and state licenses

  • Obstetrics and gynecology, ConnecticutPrimaryLicense 55690 · taxonomy 207V00000X

OB-GYNs near Dr. O' Sullivan

Counts of OB-GYNs with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Robert Edwin O' Sullivan's patients have a median age of 33

Across all payers, Dmand AI patient panel data puts Dr. O' Sullivan's median patient age at 33, with 100% women.

Dr. O' Sullivan's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 33

Patient panel by sex, all payers

  • Women100%
  • Men0%

Source: Dmand AI Patient Panel Data

Dr. Robert Edwin O' Sullivan wrote 41 Medicare Part D claims in 2024

In 2024, Dr. O' Sullivan wrote 41 Medicare Part D claims for 21 patients. 90% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $417 in total drug cost. In 2023, CMS named 12 claims across 1 drug.

Part D claims, 202441
Drugs named by CMS1
Total drug cost$417
Part D patients21

Dr. O' Sullivan's Part D claims by kind of drug, 2024

  • Generic37 claims90%
  • Brand-name and other4 claims10%

Dr. O' Sullivan's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 122024: 12No change

Drugs named by CMS: 1 in 2024, 1 in 2023.

See all prescribing by Dr. O' Sullivan

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. Robert Edwin O' Sullivan takes part in Medicare

Dr. O' Sullivan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Robert Edwin O' Sullivan received $67 in industry payments from 2022 to 2025

CMS Open Payments shows 4 general payments to Dr. O' Sullivan from 3 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. Exeltis, USA Inc. paid the most, $32.

General payments to Dr. O' Sullivan by program year, 2022 to 2025

Companies that paid Dr. O' Sullivan the most, 2022 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. O' Sullivan

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Robert Edwin O' Sullivan graduated from University College Cork Faculty of Medicine

Dr. O' Sullivan graduated from University College Cork Faculty of Medicine in 2007.

  1. Medical schoolUniversity College Cork Faculty of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Robert Edwin O' Sullivan's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Robert Edwin O' Sullivan

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Robert Edwin O' Sullivan's NPI number?

Dr. Robert Edwin O' Sullivan's NPI number is 1053751271. It was assigned on July 2, 2013, and it is active in the NPI Registry.

What kind of doctor is Dr. Robert Edwin O' Sullivan?

Dr. Robert Edwin O' Sullivan is an OB-GYN in Bridgeport, Connecticut. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).

Where does Dr. Robert Edwin O' Sullivan practice?

Dr. O' Sullivan practices at 982 East Main Street, Bridgeport, CT 06608. Dr. O' Sullivan's primary practice is OPTIMUS at East Main in Bridgeport, Connecticut. Dmand AI also links Dr. O' Sullivan to 1 community health center and 1 medical group.

What is Dr. Robert Edwin O' Sullivan's office phone number?

The practice phone on file for Dr. O' Sullivan is (203) 696-3260.

What is Dr. Robert Edwin O' Sullivan's medical license number?

Dr. O' Sullivan holds Connecticut license 55690.

Which hospitals is Dr. Robert Edwin O' Sullivan affiliated with?

Dr. O' Sullivan is affiliated with Bridgeport Hospital.

What medical group is Dr. Robert Edwin O' Sullivan part of?

Dr. O' Sullivan is linked to Northeast Medical Group. Dmand AI links Dr. O' Sullivan to 1 more medical group.

Does Dr. Robert Edwin O' Sullivan accept Medicare?

Yes. CMS lists Dr. O' Sullivan as accepting Medicare assignment.

Where did Dr. Robert Edwin O' Sullivan go to medical school?

Dr. O' Sullivan graduated from University College Cork Faculty of Medicine in 2007.

What drugs does Dr. Robert Edwin O' Sullivan prescribe most?

In 2024 Medicare Part D data, Dr. O' Sullivan's most prescribed drugs by claims were Medroxyprogesterone Acetate.

Has Dr. Robert Edwin O' Sullivan received payments from drug or device companies?

CMS Open Payments shows $67 in general payments to Dr. O' Sullivan from 3 companies from 2022 to 2025. The largest total came from Exeltis, USA Inc.

How long has Dr. Robert Edwin O' Sullivan been practicing?

Dr. O' Sullivan graduated from medical school in 2007, 19 years ago.

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