Dr. Catharine Roos, MD
- Medicare patients, 2024
- 26
- Part D claims, 2024
- 108
- Hospital affiliations
- 1
- Industry payments
- $34
- Medical groups
- 2
- Practice address
- 1234 Napier Avenue, Saint Joseph, MI 49085
- Practice phone
- Call (269) 983-8300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Roos' 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. Catharine Roos is an OB-GYN in Saint Joseph, Michigan
Dr. Roos practices at Corewell Health Lakeland Hospitals - Saint Joseph Hospital in Saint Joseph, Michigan, part of Corewell Health.
Dr. Roos' NPI, 1982867883, was assigned on July 10, 2008. Dr. Roos graduated from Loma Linda University School of Medicine in 2008. Dr. Roos holds Michigan license 4301505323.
- NPI
- 1982867883NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638320864
- NPI enumeration date
- July 10, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (269) 983-8300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Catharine Roos practices at Corewell Health Lakeland Hospitals - Saint Joseph Hospital in Saint Joseph, Michigan
Dr. Roos' primary practice is Corewell Health Lakeland Hospitals - Saint Joseph Hospital, at 1234 Napier Avenue, Saint Joseph, MI 49085 in Berrien County. The practice phone is (269) 983-8300.
- Corewell Health Lakeland Hospitals - Saint Joseph Hospital1234 Napier Avenue, Saint Joseph, MI 49085 · Berrien CountyPhone(269) 983-8300
Source: Dmand AI Affiliation Data
Dr. Catharine Roos is affiliated with 2 sites of care and 2 medical groups
Dr. Roos' primary practice is Corewell Health Lakeland Hospitals - Saint Joseph Hospital in Saint Joseph, Michigan, part of Corewell Health. The medical group on file is Corewell Health Medical Group South. Dmand AI also links Dr. Roos to 1 more group practice or clinic and 1 medical group, 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. Catharine Roos' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Roos practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Corewell Health Lakeland Hospitals - Saint Joseph Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Catharine Roos is one of 1,457 OB-GYNs in Michigan
Obstetrics and gynecology is Dr. Roos' primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Roos is licensed in Michigan.
Specialties and state licenses
- Obstetrics and gynecology, MichiganPrimary
OB-GYNs near Dr. Roos
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. Catharine Roos treated 26 Medicare patients in 2024, average age 70
CMS counts 26 Medicare patients who saw Dr. Roos in 2024. The largest group is 65 to 74, with 13 patients. 69% of them have high cholesterol, and 62% have high blood pressure. Their average risk score is 0.71, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Roos' median patient age at 34, with 99% women.
Dr. Roos' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Roos' Medicare patients, 2024
- High cholesterol69%
- High blood pressure62%
Share of Medicare patients with each condition. A patient can have several.
Dr. Roos' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 34
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. Catharine Roos wrote 108 Medicare Part D claims in 2024
In 2024, Dr. Roos wrote 108 Medicare Part D claims for 40 patients. 72% of them were for generic drugs. CMS names the drug for 45 of them, across 3 drugs with 11 or more claims each, at $4,041 in total drug cost.
Dr. Roos' Part D claims by kind of drug, 2024
- Generic78 claims72%
- Brand-name30 claims28%
Dr. Roos' 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.
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. Catharine Roos takes part in Medicare
Dr. Roos 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. Catharine Roos received $34 in industry payments in 2024
CMS Open Payments shows 2 general payments to Dr. Roos from 2 drug and device companies in 2024. Food and beverage make up the largest share, 100% of the total. Daiichi Sankyo Inc. paid the most, $19.
Companies that paid Dr. Roos the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Catharine Roos graduated from Loma Linda University School of Medicine
Dr. Roos graduated from Loma Linda University School of Medicine in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Catharine Roos'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 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. Catharine Roos
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. Catharine Roos' NPI number?
Dr. Catharine Roos' NPI number is 1982867883. It was assigned on July 10, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Catharine Roos?
Dr. Catharine Roos is an OB-GYN in Saint Joseph, Michigan. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Catharine Roos practice?
Dr. Roos practices at 1234 Napier Avenue, Saint Joseph, MI 49085. Dr. Roos' primary practice is Corewell Health Lakeland Hospitals - Saint Joseph Hospital in Saint Joseph, Michigan, part of Corewell Health. Dmand AI also links Dr. Roos to 1 group practice or clinic and 1 medical group.
What is Dr. Catharine Roos' office phone number?
The practice phone on file for Dr. Roos is (269) 983-8300.
What is Dr. Catharine Roos' medical license number?
Dr. Roos holds Michigan license 4301505323.
Which hospitals is Dr. Catharine Roos affiliated with?
Dr. Roos practices at Corewell Health Lakeland Hospitals - Saint Joseph Hospital in Saint Joseph, Michigan.
What medical group is Dr. Catharine Roos part of?
Dr. Roos is linked to Corewell Health Medical Group South. Dmand AI links Dr. Roos to 1 more medical group.
Does Dr. Catharine Roos accept Medicare?
Yes. CMS lists Dr. Roos as accepting Medicare assignment.
How many Medicare patients does Dr. Catharine Roos see?
CMS counts 26 Medicare patients who saw Dr. Roos in 2024, with an average age of 70.
Where did Dr. Catharine Roos go to medical school?
Dr. Roos graduated from Loma Linda University School of Medicine in 2008.
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What drugs does Dr. Catharine Roos prescribe most?
In 2024 Medicare Part D data, Dr. Roos' most prescribed drugs by claims were Estradiol, Clobetasol Propionate and Combipatch.
Has Dr. Catharine Roos received payments from drug or device companies?
CMS Open Payments shows $34 in general payments to Dr. Roos from 2 companies from 2024 to 2024. The largest total came from Daiichi Sankyo Inc.
How long has Dr. Catharine Roos been practicing?
Dr. Roos graduated from medical school in 2008, 18 years ago.
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