Dr. Ramona C. Marsh, MD
- Medicare services, 2024
- 58
- Medicare patients, 2024
- 60
- Part D claims, 2024
- 73
- MIPS score, 2024
- 96
- Hospital affiliations
- 1
- Practice address
- 1800 N Main St, Wheaton, IL 60187
- Practice phone
- Call (630) 933-3300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northwestern Medicine Regional Medical Group
Wheaton, Illinois
Find Dr. Marsh'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. Ramona C. Marsh is an OB-GYN in Wheaton, Illinois
Dr. Marsh practices at Northwestern Medicine Regional Medical Group in Wheaton, Illinois.
Dr. Marsh's NPI, 1821109877, was assigned on August 31, 2006. Dr. Marsh graduated from Wayne State University School of Medicine in 1986. Dr. Marsh holds Illinois license 036-076115.
- NPI
- 1821109877NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658515903
- NPI enumeration date
- August 31, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (630) 933-3300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ramona C. Marsh practices at Northwestern Medicine Regional Medical Group in Wheaton, Illinois
Dr. Marsh's primary practice is Northwestern Medicine Regional Medical Group, at 1800 N Main St, Wheaton, IL 60187 in Dupage County. The practice phone is (630) 933-3300.
- Northwestern Medicine Regional Medical Group1800 N Main St, Wheaton, IL 60187 · Dupage CountyPhone(630) 933-3300
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ramona C. Marsh is affiliated with 4 sites of care and 1 medical group
Dr. Marsh's primary practice is Northwestern Medicine Regional Medical Group in Wheaton, Illinois. Dr. Marsh is also affiliated with Northwestern Medicine Central DuPage Hospital. The medical group on file is Northwestern Medicine Regional Medical Group. Dmand AI also links Dr. Marsh to 1 more physician office and 1 group practice or clinic, 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. Ramona C. Marsh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marsh practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Medicine Regional Medical Group | 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. Ramona C. Marsh is one of 1,665 OB-GYNs in Illinois
Obstetrics and gynecology is Dr. Marsh's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Marsh is licensed in Illinois.
Specialties and state licenses
- Obstetrics and gynecology, IllinoisPrimary
OB-GYNs near Dr. Marsh
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. Ramona C. Marsh billed Medicare for 58 services in 2024
CMS data shows 58 Medicare services from Dr. Marsh across 3 procedure codes in 2024, for 60 Medicare patients. Medicare paid $3,676 for them. Every service was in an office.
Dr. Marsh's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 442024: 3423%
- Other services
- 2023: 262024: 248%
Dr. Marsh compared with the Illinois median for OB-GYNs, 2024
- Dr. Marsh
- Illinois median
- Medicare services
- 58vs 4821% above
- Medicare patients
- 60vs 4436% above
- Part D claims
- 13vs 2854% below
Medians across 1,360 OB-GYNs in Illinois with Dmand AI profiles that report each measure.
Dr. Marsh'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. Marsh and other OB-GYNs in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ramona C. Marsh treated 60 Medicare patients in 2024, average age 70
CMS counts 60 Medicare patients who saw Dr. Marsh in 2024. The largest group is 65 to 74, with 35 patients. 67% of them have high cholesterol, and 53% have high blood pressure. Their average risk score is 0.88, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Marsh's median patient age at 38, with 99% women.
Dr. Marsh's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Marsh's Medicare patients, 2024
- High cholesterol67%
- High blood pressure53%
- Arthritis48%
- Mood disorders33%
- Depression30%
- Osteoporosis28%
- Anxiety27%
- Cancer22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Marsh's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 38
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. Ramona C. Marsh wrote 73 Medicare Part D claims in 2024
In 2024, Dr. Marsh wrote 73 Medicare Part D claims for 28 patients. 71% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $660 in total drug cost. In 2021, CMS named 13 claims across 1 drug.
Dr. Marsh's Part D claims by kind of drug, 2024
- Generic52 claims71%
- Brand-name21 claims29%
Dr. Marsh's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2023
- 2021
- 2023
- Claims for drugs CMS names
- 2021: 132023: 13No change
Drugs named by CMS: 1 in 2023, 1 in 2021.
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. Ramona C. Marsh scored 96 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 96 out of 100 for Dr. Marsh for performance year 2024, reported through an alternative payment model (APM). Dr. Marsh accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Marsh's MIPS scores, performance year 2024
- 96of 100Final score
- 88.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Ramona C. Marsh received $14 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Marsh from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. CooperSurgical, Inc. paid the most, $14.
Companies that paid Dr. Marsh the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ramona C. Marsh graduated from Wayne State University School of Medicine
Dr. Marsh graduated from Wayne State University School of Medicine in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ramona C. Marsh'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)Clinician Public Reporting: Overall MIPS Performance (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. Ramona C. Marsh
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. Ramona C. Marsh's NPI number?
Dr. Ramona C. Marsh's NPI number is 1821109877. It was assigned on August 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ramona C. Marsh?
Dr. Ramona C. Marsh is an OB-GYN in Wheaton, Illinois. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Ramona C. Marsh practice?
Dr. Marsh practices at 1800 N Main St, Wheaton, IL 60187. Dr. Marsh's primary practice is Northwestern Medicine Regional Medical Group in Wheaton, Illinois. Dmand AI also links Dr. Marsh to 1 physician office and 1 group practice or clinic.
What is Dr. Ramona C. Marsh's office phone number?
The practice phone on file for Dr. Marsh is (630) 933-3300.
What is Dr. Ramona C. Marsh's medical license number?
Dr. Marsh holds Illinois license 036-076115.
Which hospitals is Dr. Ramona C. Marsh affiliated with?
Dr. Marsh is affiliated with Northwestern Medicine Central DuPage Hospital.
What medical group is Dr. Ramona C. Marsh part of?
Dr. Marsh is linked to Northwestern Medicine Regional Medical Group.
Does Dr. Ramona C. Marsh accept Medicare?
Yes. CMS data shows Dr. Marsh billed Medicare for 58 services in 2024, and Dr. Marsh accepts Medicare assignment.
What is Dr. Ramona C. Marsh's MIPS score?
Dr. Marsh's MIPS final score for performance year 2024 is 96 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Ramona C. Marsh see?
CMS counts 60 Medicare patients who saw Dr. Marsh in 2024, with an average age of 70.
Show 5 more questionsShow fewer questions
What services does Dr. Ramona C. Marsh bill to Medicare?
In 2024, Dr. Marsh's most billed Medicare services were medicare service (G0101), office visit, established patient (99213) and office visit, new patient (99203).
Where did Dr. Ramona C. Marsh go to medical school?
Dr. Marsh graduated from Wayne State University School of Medicine in 1986.
What drugs does Dr. Ramona C. Marsh prescribe most?
In 2023 Medicare Part D data, Dr. Marsh's most prescribed drugs by claims were Progesterone.
Has Dr. Ramona C. Marsh received payments from drug or device companies?
CMS Open Payments shows $14 in general payments to Dr. Marsh from 1 company from 2025 to 2025. The largest total came from CooperSurgical, Inc.
How long has Dr. Ramona C. Marsh been practicing?
Dr. Marsh graduated from medical school in 1986, 40 years ago.
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