Dr. Stefanie N. Marshall, DO
- Medicare services, 2024
- 640
- Medicare patients, 2024
- 302
- Part D claims, 2024
- 286
- Hospital affiliations
- 3
- Industry payments
- $3,284
- Practice address
- 4745 Ogletown Stanton Rd, Newark, DE 19713
- Practice phone
- Call (800) 845-2785
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Lifeline Medical Associates
Newark, Delaware
Find Dr. Marshall'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. Stefanie N. Marshall is an OB-GYN in Newark, Delaware
Dr. Marshall practices at Lifeline Medical Associates in Newark, Delaware.
Dr. Marshall's NPI, 1184691156, was assigned on March 8, 2006. Dr. Marshall graduated from Rowan University School of Osteopathic Medicine in 2001. Dr. Marshall holds Delaware license C20007561.
- NPI
- 1184691156NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628000189
- NPI enumeration date
- March 8, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (800) 845-2785
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stefanie N. Marshall practices at Lifeline Medical Associates in Newark, Delaware
Dr. Marshall's primary practice is Lifeline Medical Associates, at 4745 Ogletown Stanton Rd, Newark, DE 19713 in New Castle County. The practice phone is (800) 845-2785.
- Lifeline Medical Associates4745 Ogletown Stanton Rd, Newark, DE 19713 · New Castle CountyPhone(800) 845-2785
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Stefanie N. Marshall is affiliated with 7 sites of care and 5 medical groups
Dr. Marshall's primary practice is Lifeline Medical Associates in Newark, Delaware. Dr. Marshall is also affiliated with Christiana Hospital. The medical group on file is Lifeline Medical Associates. Dmand AI also links Dr. Marshall to 2 more hospitals, 4 medical groups and 3 group practices and clinics, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Stefanie N. Marshall's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marshall practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lifeline Medical Associates | Available with a free account |
| +6 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stefanie N. Marshall is one of 128 OB-GYNs in Delaware
Obstetrics and gynecology is Dr. Marshall's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Marshall is licensed in Delaware.
Specialties and state licenses
- Obstetrics and gynecology, DelawarePrimary
OB-GYNs near Dr. Marshall
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. Stefanie N. Marshall billed Medicare for 640 services in 2024
CMS data shows 640 Medicare services from Dr. Marshall across 8 procedure codes in 2024, for 302 Medicare patients. Medicare paid $19,031 for them. Every service was in an office.
Dr. Marshall's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 3972024: 26434%
- Tests and treatments
- 2023: 02024: 220
- Office and hospital visits
- 2023: 1162024: 1078%
- Imaging
- 2023: 462024: 497%
Dr. Marshall compared with the Delaware median for OB-GYNs, 2024
- Dr. Marshall
- Delaware median
- Medicare services
- 640vs 917.0 times
- Medicare patients
- 302vs 704.3 times
- Part D claims
- 175vs 345.1 times
Medians across 107 OB-GYNs in Delaware with Dmand AI profiles that report each measure.
Dr. Marshall'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. Marshall and other OB-GYNs in Delaware.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stefanie N. Marshall treated 302 Medicare patients in 2024, average age 71
CMS counts 302 Medicare patients who saw Dr. Marshall in 2024. The largest group is 65 to 74, with 221 patients. 75% of them have high cholesterol, and 56% have high blood pressure. Their average risk score is 0.69, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Marshall's median patient age at 54, with 99% women.
Dr. Marshall's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Marshall's Medicare patients, 2024
- High cholesterol75%
- High blood pressure56%
- Arthritis42%
- Diabetes21%
- Anxiety20%
- Mood disorders20%
- Osteoporosis20%
- Depression18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Marshall's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women99%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stefanie N. Marshall wrote 286 Medicare Part D claims in 2024
In 2024, Dr. Marshall wrote 286 Medicare Part D claims for 115 patients. 92% of them were for generic drugs. CMS names the drug for 175 of them, across 6 drugs with 11 or more claims each, at $10,945 in total drug cost. In 2023, CMS named 202 claims across 7 drugs.
Dr. Marshall's Part D claims by kind of drug, 2024
- Generic262 claims92%
- Brand-name24 claims8%
Dr. Marshall'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. Marshall's Part D claims, 2024
- Antibiotics5%14 of 286 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: 2022024: 17513%
Drugs named by CMS: 6 in 2024, 7 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. Stefanie N. Marshall takes part in Medicare
Dr. Marshall 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. Stefanie N. Marshall received $3,284 in industry payments from 2016 to 2025
CMS Open Payments shows 166 general payments to Dr. Marshall from 38 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. Amgen Inc. paid the most, $637.
General payments to Dr. Marshall by program year, 2016 to 2025
General payments to Dr. Marshall by kind, 2016 to 2025
- Food and beverage$3,18297%
- Education$1023%
Companies that paid Dr. Marshall 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. Stefanie N. Marshall graduated from Rowan University School of Osteopathic Medicine
Dr. Marshall graduated from Rowan University School of Osteopathic Medicine in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stefanie N. Marshall'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 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. Stefanie N. Marshall
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. Stefanie N. Marshall's NPI number?
Dr. Stefanie N. Marshall's NPI number is 1184691156. It was assigned on March 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stefanie N. Marshall?
Dr. Stefanie N. Marshall is an OB-GYN in Newark, Delaware. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Stefanie N. Marshall practice?
Dr. Marshall practices at 4745 Ogletown Stanton Rd, Newark, DE 19713. Dr. Marshall's primary practice is Lifeline Medical Associates in Newark, Delaware. Dmand AI also links Dr. Marshall to 2 hospitals, 4 medical groups and 3 group practices and clinics.
What is Dr. Stefanie N. Marshall's office phone number?
The practice phone on file for Dr. Marshall is (800) 845-2785.
What is Dr. Stefanie N. Marshall's medical license number?
Dr. Marshall holds Delaware license C20007561.
Which hospitals is Dr. Stefanie N. Marshall affiliated with?
Dr. Marshall is affiliated with Christiana Hospital. Dmand AI links Dr. Marshall to 2 more hospitals.
What medical group is Dr. Stefanie N. Marshall part of?
Dr. Marshall is linked to Lifeline Medical Associates. Dmand AI links Dr. Marshall to 4 more medical groups.
Does Dr. Stefanie N. Marshall accept Medicare?
Yes. CMS data shows Dr. Marshall billed Medicare for 640 services in 2024, and Dr. Marshall accepts Medicare assignment.
How many Medicare patients does Dr. Stefanie N. Marshall see?
CMS counts 302 Medicare patients who saw Dr. Marshall in 2024, with an average age of 71.
What services does Dr. Stefanie N. Marshall bill to Medicare?
In 2024, Dr. Marshall's most billed Medicare services were medicare service (G0101), health assessment (96127) and medicare temporary code (Q0091).
Show 4 more questionsShow fewer questions
Where did Dr. Stefanie N. Marshall go to medical school?
Dr. Marshall graduated from Rowan University School of Osteopathic Medicine in 2001.
What drugs does Dr. Stefanie N. Marshall prescribe most?
In 2024 Medicare Part D data, Dr. Marshall's most prescribed drugs by claims were Estradiol, Alendronate Sodium and Valacyclovir.
Has Dr. Stefanie N. Marshall received payments from drug or device companies?
CMS Open Payments shows $3,284 in general payments to Dr. Marshall from 38 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Stefanie N. Marshall been practicing?
Dr. Marshall graduated from medical school in 2001, 25 years ago.
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