Dr. Katheryn M. Warren, MD
- Medicare services, 2024
- 99
- Medicare patients, 2024
- 87
- Part D claims, 2024
- 41
- Hospital affiliations
- 1
- Industry payments
- $4,495
- Practice address
- 4755 Ogletown Stanton Road, Newark, DE 19713
- Practice phone
- Call (302) 320-2926
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
ChristianaCare Adult Outpatient Psychiatry & Therapy
Outpatient Mental Health Clinic · Newark, Delaware
Find Dr. Warren's professional email, personal email and mobile number
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Dr. Katheryn M. Warren is a plastic surgeon in Newark, Delaware
Dr. Warren practices at ChristianaCare Adult Outpatient Psychiatry & Therapy in Newark, Delaware.
Dr. Warren's NPI, 1265549380, was assigned on August 24, 2006. Dr. Warren graduated from University of Connecticut School of Medicine in 1989. Dr. Warren holds Delaware license C10004472.
- NPI
- 1265549380NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8022184191
- NPI enumeration date
- August 24, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (302) 320-2926
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Katheryn M. Warren practices at ChristianaCare Adult Outpatient Psychiatry & Therapy in Newark, Delaware
Dr. Warren's primary practice is ChristianaCare Adult Outpatient Psychiatry & Therapy, at 4755 Ogletown Stanton Road, Newark, DE 19713. The practice phone is (302) 320-2926.
- ChristianaCare Adult Outpatient Psychiatry & Therapy4755 Ogletown Stanton Road, Newark, DE 19713Phone(302) 320-2926
Source: Dmand AI Affiliation Data
Dr. Katheryn M. Warren is affiliated with 4 sites of care
Dr. Warren's primary practice is ChristianaCare Adult Outpatient Psychiatry & Therapy in Newark, Delaware. Dr. Warren is also affiliated with Christiana Hospital. Dmand AI also links Dr. Warren to 1 more physician office and 1 hospice, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Katheryn M. Warren's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Warren practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ChristianaCare Adult Outpatient Psychiatry & Therapy | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Katheryn M. Warren is one of 21 plastic surgeons in Delaware
Plastic surgery is Dr. Warren's primary specialty in the NPI Registry, under taxonomy code 208200000X. Dr. Warren is licensed in Delaware.
Specialties and state licenses
- Plastic surgery, DelawarePrimary
Plastic surgeons near Dr. Warren
Counts of plastic surgeons 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. Katheryn M. Warren billed Medicare for 99 services in 2024
CMS data shows 99 Medicare services from Dr. Warren across 2 procedure codes in 2024, all of them office visits, for 87 Medicare patients. Medicare paid $6,430 for them. Every service was in an office.
Dr. Warren's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 892024: 9911%
Dr. Warren compared with the Delaware median for plastic surgeons, 2024
- Dr. Warren
- Delaware median
- Medicare services
- 99vs 12420% below
- Medicare patients
- 87vs 947% below
- Part D claims
- 18vs 3040% below
Medians across 18 plastic surgeons in Delaware with Dmand AI profiles that report each measure.
Dr. Warren'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. Warren and other plastic surgeons in Delaware.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Katheryn M. Warren treated 87 Medicare patients in 2024, average age 72
CMS counts 87 Medicare patients who saw Dr. Warren in 2024. The largest group is 65 to 74, with 44 patients. 75% of them have high cholesterol, and 69% have high blood pressure. Their average risk score is 0.94, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Warren's median patient age at 58, with 87% women.
Dr. Warren's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Warren's Medicare patients by sex, 2024
- Women7485%
- Men1315%
Chronic conditions among Dr. Warren's Medicare patients, 2024
- High cholesterol75%
- High blood pressure69%
- Arthritis61%
- Cancer56%
- Anxiety31%
- Mood disorders30%
- Depression29%
- Diabetes26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Warren's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women87%
- Men12%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Katheryn M. Warren wrote 41 Medicare Part D claims in 2024
In 2024, Dr. Warren wrote 41 Medicare Part D claims for 27 patients. 93% of them were for generic drugs. CMS names the drug for 18 of them, across 1 drug with 11 or more claims each, at $36 in total drug cost. In 2023, CMS named 23 claims across 1 drug.
Dr. Warren's Part D claims by kind of drug, 2024
- Generic38 claims93%
- Brand-name and other3 claims7%
Dr. Warren'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. Warren's Part D claims, 2024
- Opioids56%23 of 41 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: 232024: 1822%
Drugs named by CMS: 1 in 2024, 1 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
Dr. Katheryn M. Warren ranks in the 71st percentile for melanoma (skin cancer) excision in Medicare
Dr. Warren accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 16 procedures of melanoma (skin cancer) excision by Dr. Warren, more than 71% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Warren ranks in Medicare procedure volume
- Melanoma (skin cancer) excision
- 71st percentile16 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Mastectomy: 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. Katheryn M. Warren received $4,495 in industry payments from 2016 to 2025
CMS Open Payments shows 63 general payments to Dr. Warren from 11 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 60% of the total. Medical Device Business Services, Inc. paid the most, $1,356.
General payments to Dr. Warren by program year, 2016 to 2025
General payments to Dr. Warren by kind, 2016 to 2025
- Travel and lodging$2,71760%
- Food and beverage$1,77840%
Companies that paid Dr. Warren 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. Katheryn M. Warren graduated from University of Connecticut School of Medicine
Dr. Warren graduated from University of Connecticut School of Medicine in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Katheryn M. Warren'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. Katheryn M. Warren
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. Katheryn M. Warren's NPI number?
Dr. Katheryn M. Warren's NPI number is 1265549380. It was assigned on August 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Katheryn M. Warren?
Dr. Katheryn M. Warren is a plastic surgeon in Newark, Delaware. The primary specialty in the NPI Registry is Plastic Surgery Physician (taxonomy code 208200000X).
Where does Dr. Katheryn M. Warren practice?
Dr. Warren practices at 4755 Ogletown Stanton Road, Newark, DE 19713. Dr. Warren's primary practice is ChristianaCare Adult Outpatient Psychiatry & Therapy in Newark, Delaware. Dmand AI also links Dr. Warren to 1 physician office and 1 hospice.
What is Dr. Katheryn M. Warren's office phone number?
The practice phone on file for Dr. Warren is (302) 320-2926.
What is Dr. Katheryn M. Warren's medical license number?
Dr. Warren holds Delaware license C10004472.
Which hospitals is Dr. Katheryn M. Warren affiliated with?
Dr. Warren is affiliated with Christiana Hospital.
Does Dr. Katheryn M. Warren accept Medicare?
Yes. CMS data shows Dr. Warren billed Medicare for 99 services in 2024, and Dr. Warren accepts Medicare assignment.
How many Medicare patients does Dr. Katheryn M. Warren see?
CMS counts 87 Medicare patients who saw Dr. Warren in 2024, with an average age of 72.
What services does Dr. Katheryn M. Warren bill to Medicare?
In 2024, Dr. Warren's most billed Medicare services were office visit, established patient (99213) and office visit, new patient (99203).
Where did Dr. Katheryn M. Warren go to medical school?
Dr. Warren graduated from University of Connecticut School of Medicine in 1989.
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What drugs does Dr. Katheryn M. Warren prescribe most?
In 2024 Medicare Part D data, Dr. Warren's most prescribed drugs by claims were Oxycodone HCl.
Has Dr. Katheryn M. Warren received payments from drug or device companies?
CMS Open Payments shows $4,495 in general payments to Dr. Warren from 11 companies from 2016 to 2025. The largest total came from Medical Device Business Services, Inc.
How long has Dr. Katheryn M. Warren been practicing?
Dr. Warren graduated from medical school in 1989, 37 years ago.
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