Dr. Gerard Stephen O'Connor, MD
- Medicare services, 2024
- 479
- Medicare patients, 2024
- 323
- Part D claims, 2024
- 408
- Hospital affiliations
- 1
- Industry payments
- $1,997
- Practice address
- 7416 Church Hill Rd, Chestertown, MD 21620
- Practice phone
- Call (570) 872-4533
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Eastern Shore Urgent Care
Chestertown, Maryland
Find Dr. O'Connor's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Gerard Stephen O'Connor is a family medicine physician in Chestertown, Maryland
Dr. O'Connor practices at Eastern Shore Urgent Care in Chestertown, Maryland.
Dr. O'Connor's NPI, 1609879873, was assigned on May 23, 2005. Dr. O'Connor graduated from Georgetown University School of Medicine in 1978. Dr. O'Connor holds Maryland license D0030368.
- NPI
- 1609879873NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214019082
- NPI enumeration date
- May 23, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (570) 872-4533
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gerard Stephen O'Connor practices at Eastern Shore Urgent Care in Chestertown, Maryland
Dr. O'Connor's primary practice is Eastern Shore Urgent Care, at 7416 Church Hill Rd, Chestertown, MD 21620 in Kent County. The practice phone is (570) 872-4533.
- Eastern Shore Urgent Care7416 Church Hill Rd, Chestertown, MD 21620 · Kent CountyPhone(570) 872-4533
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gerard Stephen O'Connor is affiliated with 2 sites of care and 1 medical group
Dr. O'Connor's primary practice is Eastern Shore Urgent Care in Chestertown, Maryland. Dr. O'Connor is also affiliated with University of Maryland Shore Medical Center at Chestertown. The medical group on file is Eastern Shore Urgent Care.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gerard Stephen O'Connor's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Connor practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Eastern Shore Urgent Care | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gerard Stephen O'Connor is one of 1,698 family medicine physicians in Maryland
Family medicine is Dr. O'Connor's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. O'Connor is licensed in Maryland.
Specialties and state licenses
- Family medicine, MarylandPrimary
Family medicine physicians near Dr. O'Connor
Counts of family medicine physicians 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. Gerard Stephen O'Connor billed Medicare for 479 services in 2024
CMS data shows 479 Medicare services from Dr. O'Connor across 9 procedure codes in 2024, for 323 Medicare patients. Medicare paid $27,421 for them. Every service was in an office.
Dr. O'Connor's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3302024: 3455%
- Lab and pathology
- 2023: 1562024: 13414%
- Drugs given in the office
- 2023: 112024: 0100%
- Imaging
- 2023: 252024: 0100%
- Tests and treatments
- 2023: 252024: 0100%
- Surgery
- 2023: 172024: 0100%
Dr. O'Connor compared with the Maryland median for family medicine physicians, 2024
- Dr. O'Connor
- Maryland median
- Medicare services
- 479vs 5167% below
- Medicare patients
- 323vs 20855% above
- Part D claims
- 248vs 75167% below
Medians across 1,659 family medicine physicians in Maryland with Dmand AI profiles that report each measure.
Dr. O'Connor's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. O'Connor and other family medicine physicians in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gerard Stephen O'Connor treated 323 Medicare patients in 2024, average age 73
CMS counts 323 Medicare patients who saw Dr. O'Connor in 2024. The largest group is 65 to 74, with 154 patients. 75% of them have high cholesterol, and 70% have high blood pressure. 10% are also on Medicaid. Their average risk score is 0.81, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. O'Connor's median patient age at 37, with 61% women.
Dr. O'Connor's Medicare patients by age, 2024
Dr. O'Connor's Medicare patients by sex, 2024
- Women19761%
- Men12639%
Chronic conditions among Dr. O'Connor's Medicare patients, 2024
- High cholesterol75%
- High blood pressure70%
- Arthritis46%
- Anxiety23%
- Diabetes20%
- Mood disorders20%
- Ischemic heart disease19%
- Depression18%
Share of Medicare patients with each condition. A patient can have several.
Dr. O'Connor's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 37
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gerard Stephen O'Connor wrote 408 Medicare Part D claims in 2024
In 2024, Dr. O'Connor wrote 408 Medicare Part D claims for 235 patients. 92% of them were for generic drugs. CMS names the drug for 248 of them, across 7 drugs with 11 or more claims each, at $1,756 in total drug cost. In 2023, CMS named 228 claims across 8 drugs.
Dr. O'Connor's Part D claims by kind of drug, 2024
- Generic374 claims92%
- Brand-name and other34 claims8%
Dr. O'Connor'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.
Drug classes CMS tracks in Dr. O'Connor's Part D claims, 2024
- Antibiotics38%155 of 408 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2282024: 2489%
Drugs named by CMS: 7 in 2024, 8 in 2023.
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. Gerard Stephen O'Connor takes part in Medicare
Dr. O'Connor 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. Gerard Stephen O'Connor received $1,997 in industry payments from 2016 to 2025
CMS Open Payments shows 24 general payments to Dr. O'Connor from 6 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 66% of the total. Davol Inc. paid the most, $1,702.
General payments to Dr. O'Connor by program year, 2016 to 2025
General payments to Dr. O'Connor by kind, 2016 to 2025
- Travel and lodging$1,31166%
- Food and beverage$68634%
Companies that paid Dr. O'Connor the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gerard Stephen O'Connor graduated from Georgetown University School of Medicine
Dr. O'Connor graduated from Georgetown University School of Medicine in 1978.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gerard Stephen O'Connor's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gerard Stephen O'Connor
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. Gerard Stephen O'Connor's NPI number?
Dr. Gerard Stephen O'Connor's NPI number is 1609879873. It was assigned on May 23, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Gerard Stephen O'Connor?
Dr. Gerard Stephen O'Connor is a family medicine physician in Chestertown, Maryland. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Gerard Stephen O'Connor practice?
Dr. O'Connor practices at 7416 Church Hill Rd, Chestertown, MD 21620. Dr. O'Connor's primary practice is Eastern Shore Urgent Care in Chestertown, Maryland.
What is Dr. Gerard Stephen O'Connor's office phone number?
The practice phone on file for Dr. O'Connor is (570) 872-4533.
What is Dr. Gerard Stephen O'Connor's medical license number?
Dr. O'Connor holds Maryland license D0030368.
Which hospitals is Dr. Gerard Stephen O'Connor affiliated with?
Dr. O'Connor is affiliated with University of Maryland Shore Medical Center at Chestertown.
What medical group is Dr. Gerard Stephen O'Connor part of?
Dr. O'Connor is linked to Eastern Shore Urgent Care.
Does Dr. Gerard Stephen O'Connor accept Medicare?
Yes. CMS data shows Dr. O'Connor billed Medicare for 479 services in 2024, and Dr. O'Connor accepts Medicare assignment.
How many Medicare patients does Dr. Gerard Stephen O'Connor see?
CMS counts 323 Medicare patients who saw Dr. O'Connor in 2024, with an average age of 73.
What services does Dr. Gerard Stephen O'Connor bill to Medicare?
In 2024, Dr. O'Connor's most billed Medicare services were office visit, new patient (99203), office visit, established patient (99212) and office visit, established patient (99213).
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Where did Dr. Gerard Stephen O'Connor go to medical school?
Dr. O'Connor graduated from Georgetown University School of Medicine in 1978.
What drugs does Dr. Gerard Stephen O'Connor prescribe most?
In 2024 Medicare Part D data, Dr. O'Connor's most prescribed drugs by claims were Methylprednisolone, Azithromycin and Doxycycline Hyclate.
Has Dr. Gerard Stephen O'Connor received payments from drug or device companies?
CMS Open Payments shows $1,997 in general payments to Dr. O'Connor from 6 companies from 2016 to 2025. The largest total came from Davol Inc.
How long has Dr. Gerard Stephen O'Connor been practicing?
Dr. O'Connor graduated from medical school in 1978, 48 years ago.
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