Dr. Anna Marie Marren, MD
- Medicare services, 2024
- 874
- Medicare patients, 2024
- 297
- Part D claims, 2024
- 570
- Hospital affiliations
- 4
- Medical groups
- 4
- Practice address
- 1301 S Main Street, Ottawa, KS 66067
- Practice phone
- Call (785) 229-8200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Anna Marie Marren is an internist in Ottawa, Kansas
Dr. Marren practices at AdventHealth Ottawa in Ottawa, Kansas, part of AdventHealth.
Dr. Marren's NPI, 1215420369, was assigned on June 13, 2018. Dr. Marren graduated from University of Kansas School of Med (KC/Wich/Sal) in 2018. Dr. Marren holds Illinois license 125.072691.
- NPI
- 1215420369NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557610045
- NPI enumeration date
- June 13, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (785) 229-8200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Anna Marie Marren practices at AdventHealth Ottawa in Ottawa, Kansas
Dr. Marren's primary practice is AdventHealth Ottawa, at 1301 S Main Street, Ottawa, KS 66067 in Franklin County. The practice phone is (785) 229-8200.
- AdventHealth Ottawa1301 S Main Street, Ottawa, KS 66067 · Franklin CountyPhone(785) 229-8200
Source: Dmand AI Affiliation Data
Dr. Anna Marie Marren is affiliated with 4 sites of care and 4 medical groups
Dr. Marren's primary practice is AdventHealth Ottawa in Ottawa, Kansas, part of AdventHealth. Dr. Marren is also affiliated with AdventHealth Shawnee Mission. The medical group on file is TeamHealth. Dmand AI also links Dr. Marren to 2 more hospitals and 3 medical groups, 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. Anna Marie Marren's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marren practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| AdventHealth Ottawa | Available with a free account |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Anna Marie Marren is one of 866 internists in Kansas
Internal medicine is Dr. Marren's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Marren is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Internists near Dr. Marren
Counts of internists 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. Anna Marie Marren billed Medicare for 874 services in 2024
CMS data shows 874 Medicare services from Dr. Marren across 6 procedure codes in 2024, for 297 Medicare patients. Medicare paid $65,532 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Marren's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5592024: 87456%
Dr. Marren compared with the Kansas median for internists, 2024
- Dr. Marren
- Kansas median
- Medicare services
- 874vs 68128% above
- Medicare patients
- 297vs 25317% above
- Part D claims
- 342vs 17991% above
Medians across 820 internists in Kansas with Dmand AI profiles that report each measure.
Dr. Marren'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Anna Marie Marren treated 297 Medicare patients in 2024, average age 78
CMS counts 297 Medicare patients who saw Dr. Marren in 2024. The largest group is 75 to 84, with 96 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 1.81, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Marren's median patient age at 70, with 61% women.
Dr. Marren's Medicare patients by age, 2024
Dr. Marren's Medicare patients by sex, 2024
- Women18663%
- Men11137%
Chronic conditions among Dr. Marren's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis64%
- Ischemic heart disease55%
- Mood disorders55%
- Depression52%
- Anxiety51%
- Heart failure49%
Share of Medicare patients with each condition. A patient can have several.
Dr. Marren's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Anna Marie Marren wrote 570 Medicare Part D claims in 2024
In 2024, Dr. Marren wrote 570 Medicare Part D claims for 205 patients. 89% of them were for generic drugs. CMS names the drug for 342 of them, across 16 drugs with 11 or more claims each, at $11,426 in total drug cost. In 2023, CMS named 239 claims across 10 drugs.
Dr. Marren's Part D claims by kind of drug, 2024
- Generic507 claims89%
- Brand-name52 claims9%
- Other11 claims2%
Dr. Marren'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. Marren's Part D claims, 2024
- Opioids5%30 of 570 claims
- Antibiotics27%153 of 570 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: 2392024: 34243%
Drugs named by CMS: 16 in 2024, 10 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. Anna Marie Marren takes part in Medicare
Dr. Marren 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. Anna Marie Marren graduated from University of Kansas School of Med (KC/Wich/Sal)
Dr. Marren graduated from University of Kansas School of Med (KC/Wich/Sal) in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Anna Marie Marren'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) |
| 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. Anna Marie Marren
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. Anna Marie Marren's NPI number?
Dr. Anna Marie Marren's NPI number is 1215420369. It was assigned on June 13, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Anna Marie Marren?
Dr. Anna Marie Marren is an internist in Ottawa, Kansas. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Anna Marie Marren practice?
Dr. Marren practices at 1301 S Main Street, Ottawa, KS 66067. Dr. Marren's primary practice is AdventHealth Ottawa in Ottawa, Kansas, part of AdventHealth. Dmand AI also links Dr. Marren to 2 hospitals and 3 medical groups.
What is Dr. Anna Marie Marren's office phone number?
The practice phone on file for Dr. Marren is (785) 229-8200.
What is Dr. Anna Marie Marren's medical license number?
Dr. Marren holds Illinois license 125.072691.
Which hospitals is Dr. Anna Marie Marren affiliated with?
Dr. Marren practices at AdventHealth Ottawa in Ottawa, Kansas. Dr. Marren is also affiliated with AdventHealth Shawnee Mission. Dmand AI links Dr. Marren to 2 more hospitals.
What medical group is Dr. Anna Marie Marren part of?
Dr. Marren is linked to TeamHealth. Dmand AI links Dr. Marren to 3 more medical groups.
Does Dr. Anna Marie Marren accept Medicare?
Yes. CMS data shows Dr. Marren billed Medicare for 874 services in 2024, and Dr. Marren accepts Medicare assignment.
How many Medicare patients does Dr. Anna Marie Marren see?
CMS counts 297 Medicare patients who saw Dr. Marren in 2024, with an average age of 78.
What services does Dr. Anna Marie Marren bill to Medicare?
In 2024, Dr. Marren's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99238) and hospital inpatient care (99223).
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Where did Dr. Anna Marie Marren go to medical school?
Dr. Marren graduated from University of Kansas School of Med (KC/Wich/Sal) in 2018.
What drugs does Dr. Anna Marie Marren prescribe most?
In 2024 Medicare Part D data, Dr. Marren's most prescribed drugs by claims were Prednisone, Cefdinir and Amoxicillin-Clavulanate Potass.
How long has Dr. Anna Marie Marren been practicing?
Dr. Marren graduated from medical school in 2018, 8 years ago.
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