DR. GERARD STEPHEN O'CONNOR M.D.
NPI 1609879873
Family Medicine in Chestertown, MD

Q: What is Gerard O'connor's NPI number?

The NPI number for Gerard O'connor is 1609879873. It was assigned to this individual provider in the NPPES registry on May 23, 2005.

Q: What is Gerard O'connor's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Gerard O'connor was last updated on June 5, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 23, 2005PECOS EnrolledAccepts Medicare Assignment

100 BROWN ST, CHESTERTOWN, MD 21620(410) 778-6303(410) 778-6306 Get Directions Write a Review

NPPES record last updated: June 5, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Dr. Gerard Stephen O'connor M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GERARD STEPHEN O'CONNOR M.D. (NPI 1609879873) is an individual family medicine provider in Chestertown, Maryland, licensed in Maryland (D0030368) and active in the NPI registry since May 2005. He is enrolled in Medicare PECOS, is affiliated with University Of Md Shore Medical Ctr At Chestertown, and is a graduate of Georgetown University School Of Medicine (1978).

NPPES Registry Identity

NPI1609879873

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameDR. GERARD STEPHEN O'CONNORCredential: M.D.

Location Address100 BROWN STChestertown, MD 21620-1435

Mailing Address100 Brown StChestertown, MD 21620-1435 · (410) 778-6303 · Fax (410) 778-6306

Phone(410) 778-6303

Fax(410) 778-6306

Sole ProprietorYes

Medical School CMSGeorgetown University School Of MedicineGraduated 1978

Enumeration DateMay 23, 2005

Last NPPES UpdateJune 5, 2023

NPPES CertifiedJune 5, 2023

✔ NPI 1609879873 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in MD · D0030368

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

Also ListedSpecialistTaxonomy 174400000X · License D0030368 (MD)

100 BROWN ST, Chestertown, MD 21620

Open in Google Maps ↗

Other Identifiers 4

OtherKBH8MD · Md Blue Cross Group #

OtherW251DC · Carefirst Group #

Medicaid390710400MD

Other39849601MD · Blue Cross Rendering #

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gerard Stephen O'connor M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7214019082

PECOS Enrollment IDI20090527000305

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Gerard O'connor reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Eastern Shore Urgent Care LLC

0.9 mi

Urgent Care

7416 CHURCH HILL RD
Chestertown, MD 21620

Reassigned Medicare billing, Maryland enrollment
10 clinicians in this Medicare group

NPI 1548924988 (570) 872-4533

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

95 services95 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

91 services83 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

70 services65 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

50 services50 patients

Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza 87428

This test uses a method called immunoassay to identify severe acute respiratory syndrome coronavirus and influenza. It works by detecting specific proteins (antigens) in a sample, like a nasal swab. It's a powerful tool in diagnosing these viral infections.

42 services40 patients

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

41 services38 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Of MD Shore Medical Ctr At Chestertown

Acute Care Hospitals · Chestertown, MD

OwnershipVoluntary non-profit - Private

CMS Certification Number210030

Location100 Brown StreetChestertown, MD 21620 · Kent County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21620 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$89.75 typical visit price

range $57.99 – $175.57

Typical copayment $22.43 (range $14.49 – $43.89)

Most-billed visit code 99203

Established Patient

$102.11 typical visit price

range $18.66 – $143.02

Typical copayment $25.52 (range $4.66 – $35.75)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RENAL TREATMENT CENTERS MID ATLANTIC INC

Clinic/Center (End-Stage Renal Disease (ESRD) Treatment)