Dr. Conrad J. Duncan, MD
- Medicare services, 2024
- 291
- Medicare patients, 2024
- 146
- Part D claims, 2024
- 166
- Hospital affiliations
- 2
- Industry payments
- $8,539
- Practice address
- 900 Caton Avenue, Baltimore, MD 21229
- Practice phone
- Call (410) 368-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Duncan's professional email, personal email and mobile number
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Dr. Conrad J. Duncan is a gynecology physician in Baltimore, Maryland
Dr. Duncan practices at Ascension Saint Agnes Hospital in Baltimore, Maryland, part of Ascension Health Alliance.
Dr. Duncan's NPI, 1154390714, was assigned on March 16, 2006. Dr. Duncan graduated from Yale University School of Medicine in 1984. Dr. Duncan holds Maryland license D0045495.
- NPI
- 1154390714NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921049669
- NPI enumeration date
- March 16, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (410) 368-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Conrad J. Duncan practices at Ascension Saint Agnes Hospital in Baltimore, Maryland
Dr. Duncan's primary practice is Ascension Saint Agnes Hospital, at 900 Caton Avenue, Baltimore, MD 21229 in Baltimore City. The practice phone is (410) 368-6000.
- Ascension Saint Agnes Hospital900 Caton Avenue, Baltimore, MD 21229 · Baltimore CityPhone(410) 368-6000
Source: Dmand AI Affiliation Data
Dr. Conrad J. Duncan is affiliated with 3 sites of care and 1 medical group
Dr. Duncan's primary practice is Ascension Saint Agnes Hospital in Baltimore, Maryland, part of Ascension Health Alliance. Dr. Duncan is also affiliated with Johns Hopkins Howard County Medical Center. The medical group on file is Integrated Specialists Group. Dmand AI also links Dr. Duncan to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Conrad J. Duncan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Duncan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension Saint Agnes Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Ascension Health Alliance and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Conrad J. Duncan is one of 84 gynecology physicians in Maryland
Gynecology is Dr. Duncan's primary specialty in the NPI Registry, under taxonomy code 207VG0400X. Dr. Duncan is board certified in female pelvic medicine and reconstructive surgery by the American Board of Obstetrics and Gynecology. Dr. Duncan is licensed in Maryland.
Specialties and state licenses
- Gynecology, MarylandPrimary
Gynecology physicians near Dr. Duncan
Counts of gynecology 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. Conrad J. Duncan billed Medicare for 291 services in 2024
CMS data shows 291 Medicare services from Dr. Duncan across 6 procedure codes in 2024, for 146 Medicare patients. Medicare paid $41,269 for them.
Dr. Duncan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1932024: 15619%
- Surgery
- 2023: 842024: 9513%
- Lab and pathology
- 2023: 532024: 4025%
Where Dr. Duncan's Medicare services took place, 2024
- In an office19667%
- In a facility9533%
Dr. Duncan compared with the Maryland median for gynecology physicians, 2024
- Dr. Duncan
- Maryland median
- Medicare services
- 291vs 20443% above
- Medicare patients
- 146vs 10539% above
- Part D claims
- 76vs 4762% above
Medians across 71 gynecology physicians in Maryland with Dmand AI profiles that report each measure.
Dr. Duncan'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.
Need commercial claims for Dr. Duncan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Duncan and other gynecology physicians in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Conrad J. Duncan treated 146 Medicare patients in 2024, average age 73
CMS counts 146 Medicare patients who saw Dr. Duncan in 2024. The largest group is 65 to 74, with 65 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 15% are also on Medicaid. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Duncan's median patient age at 59, with 86% women.
Dr. Duncan's Medicare patients by age, 2024
Chronic conditions among Dr. Duncan's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis56%
- Mood disorders35%
- Anxiety34%
- Diabetes27%
- Depression25%
- Chronic kidney disease23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Duncan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women86%
- Men13%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Conrad J. Duncan wrote 166 Medicare Part D claims in 2024
In 2024, Dr. Duncan wrote 166 Medicare Part D claims for 77 patients. 69% of them were for generic drugs. CMS names the drug for 76 of them, across 2 drugs with 11 or more claims each, at $29,482 in total drug cost. In 2023, CMS named 110 claims across 5 drugs.
Dr. Duncan's Part D claims by kind of drug, 2024
- Generic114 claims69%
- Brand-name52 claims31%
Dr. Duncan'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. Duncan's Part D claims, 2024
- Antibiotics23%38 of 166 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: 1102024: 7631%
Drugs named by CMS: 2 in 2024, 5 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. Conrad J. Duncan takes part in Medicare
Dr. Duncan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of the uterus: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Conrad J. Duncan received $8,539 in industry payments from 2016 to 2025
CMS Open Payments shows 130 general payments to Dr. Duncan from 31 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 36% of the total. Acell, Inc. paid the most, $3,412.
General payments to Dr. Duncan by program year, 2016 to 2025
General payments to Dr. Duncan by kind, 2016 to 2025
- Food and beverage$3,03836%
- Education speaker fees$2,69032%
- Speaker and faculty fees$1,35016%
- Travel and lodging$1,01912%
- Education$4425%
Companies that paid Dr. Duncan 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. Conrad J. Duncan graduated from Yale University School of Medicine
Dr. Duncan graduated from Yale University School of Medicine in 1984.
- Medical school
- Board certified in female pelvic medicine and reconstructive surgery
Source: Dmand AI Professional Profile Data
Sources for Dr. Conrad J. Duncan'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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)Doctors and Clinicians Utilization Data (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. Conrad J. Duncan
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. Conrad J. Duncan's NPI number?
Dr. Conrad J. Duncan's NPI number is 1154390714. It was assigned on March 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Conrad J. Duncan?
Dr. Conrad J. Duncan is a gynecology physician in Baltimore, Maryland. The primary specialty in the NPI Registry is Gynecology Physician (taxonomy code 207VG0400X).
Where does Dr. Conrad J. Duncan practice?
Dr. Duncan practices at 900 Caton Avenue, Baltimore, MD 21229. Dr. Duncan's primary practice is Ascension Saint Agnes Hospital in Baltimore, Maryland, part of Ascension Health Alliance. Dmand AI also links Dr. Duncan to 1 group practice or clinic.
What is Dr. Conrad J. Duncan's office phone number?
The practice phone on file for Dr. Duncan is (410) 368-6000.
What is Dr. Conrad J. Duncan's medical license number?
Dr. Duncan holds Maryland license D0045495.
Which hospitals is Dr. Conrad J. Duncan affiliated with?
Dr. Duncan practices at Ascension Saint Agnes Hospital in Baltimore, Maryland. Dr. Duncan is also affiliated with Johns Hopkins Howard County Medical Center.
What medical group is Dr. Conrad J. Duncan part of?
Dr. Duncan is linked to Integrated Specialists Group.
Does Dr. Conrad J. Duncan accept Medicare?
Yes. CMS data shows Dr. Duncan billed Medicare for 291 services in 2024, and Dr. Duncan accepts Medicare assignment.
How many Medicare patients does Dr. Conrad J. Duncan see?
CMS counts 146 Medicare patients who saw Dr. Duncan in 2024, with an average age of 73.
Is Dr. Conrad J. Duncan board certified?
Yes. Dr. Duncan is board certified in female pelvic medicine and reconstructive surgery by the American Board of Obstetrics and Gynecology.
Show 5 more questionsShow fewer questions
What services does Dr. Conrad J. Duncan bill to Medicare?
In 2024, Dr. Duncan's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and surgery: female reproductive system (57267).
Where did Dr. Conrad J. Duncan go to medical school?
Dr. Duncan graduated from Yale University School of Medicine in 1984.
What drugs does Dr. Conrad J. Duncan prescribe most?
In 2024 Medicare Part D data, Dr. Duncan's most prescribed drugs by claims were Myrbetriq and Estradiol.
Has Dr. Conrad J. Duncan received payments from drug or device companies?
CMS Open Payments shows $8,539 in general payments to Dr. Duncan from 31 companies from 2016 to 2025. The largest total came from Acell, Inc.
How long has Dr. Conrad J. Duncan been practicing?
Dr. Duncan graduated from medical school in 1984, 42 years ago.
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