Dr. Rohan Raju Rengen, DO
- Medicare services, 2024
- 3,555
- Medicare patients, 2024
- 814
- Part D claims, 2024
- 2,112
- Hospital affiliations
- 2
- Industry payments
- $40,968
- Practice address
- 5205 Chairsmans Court, Suite 101, Frederick, MD 21703
- Practice phone
- Call (301) 662-6572
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
DaVita Ballenger Creek Dialysis
Dialysis Center - Independent · Frederick, Maryland
Find Dr. Rengen'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. Rohan Raju Rengen is a nephrologist in Frederick, Maryland
Dr. Rengen practices at DaVita Ballenger Creek Dialysis in Frederick, Maryland.
Dr. Rengen's NPI, 1609067792, was assigned on August 5, 2007. Dr. Rengen holds Maryland license H0065835.
- NPI
- 1609067792NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678667490
- NPI enumeration date
- August 5, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (301) 662-6572
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rohan Raju Rengen practices at DaVita Ballenger Creek Dialysis in Frederick, Maryland
Dr. Rengen's primary practice is DaVita Ballenger Creek Dialysis, at 5205 Chairsmans Court, Suite 101, Frederick, MD 21703 in Frederick County. The practice phone is (301) 662-6572.
- DaVita Ballenger Creek Dialysis5205 Chairsmans Court, Suite 101, Frederick, MD 21703 · Frederick CountyPhone(301) 662-6572
Source: Dmand AI Affiliation Data
Dr. Rohan Raju Rengen is affiliated with 6 sites of care and 1 medical group
Dr. Rengen's primary practice is DaVita Ballenger Creek Dialysis in Frederick, Maryland. Dr. Rengen is also affiliated with Frederick Health Hospital. The medical group on file is Frederick Kidney Care Associates. Dmand AI also links Dr. Rengen to 1 more hospital, 2 dialysis centers and 1 group practice or clinic, 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. Rohan Raju Rengen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rengen practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| DaVita Ballenger Creek Dialysis | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Rohan Raju Rengen is one of 279 nephrologists in Maryland
Nephrology is Dr. Rengen's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Rengen is licensed in Maryland.
Specialties and state licenses
- Nephrology, MarylandPrimary
Nephrologists near Dr. Rengen
Counts of nephrologists 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. Rohan Raju Rengen billed Medicare for 3,555 services in 2024
CMS data shows 3,555 Medicare services from Dr. Rengen across 14 procedure codes in 2024, for 814 Medicare patients. Medicare paid $293,024 for them.
Dr. Rengen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2,6132024: 3,15621%
- Tests and treatments
- 2023: 3522024: 39913%
Where Dr. Rengen's Medicare services took place, 2024
- In an office2,90582%
- In a facility65018%
Dr. Rengen compared with the Maryland median for nephrologists, 2024
- Dr. Rengen
- Maryland median
- Medicare services
- 3,555vs 1,3922.6 times
- Medicare patients
- 814vs 41795% above
- Part D claims
- 1,843vs 4723.9 times
Medians across 268 nephrologists in Maryland with Dmand AI profiles that report each measure.
Dr. Rengen'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.
Need commercial claims for Dr. Rengen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Rengen and other nephrologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Rohan Raju Rengen treated 814 Medicare patients in 2024, average age 76
CMS counts 814 Medicare patients who saw Dr. Rengen in 2024. The largest group is 75 to 84, with 361 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 11% are also on Medicaid. Their average risk score is 2.53, 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. Rengen's median patient age at 73, with 43% women.
Dr. Rengen's Medicare patients by age, 2024
Dr. Rengen's Medicare patients by sex, 2024
- Women37446%
- Men44054%
Chronic conditions among Dr. Rengen's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes55%
- Ischemic heart disease52%
- Arthritis51%
- Mood disorders32%
- Atrial fibrillation30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Rengen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women43%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rohan Raju Rengen wrote 2,112 Medicare Part D claims in 2024
In 2024, Dr. Rengen wrote 2,112 Medicare Part D claims for 358 patients. 85% of them were for generic drugs. CMS names the drug for 1,843 of them, across 40 drugs with 11 or more claims each, at $255,838 in total drug cost. In 2023, CMS named 1,588 claims across 37 drugs.
Dr. Rengen's Part D claims by kind of drug, 2024
- Generic1,792 claims85%
- Brand-name320 claims15%
Dr. Rengen'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. Rengen's Part D claims, 2024
- Antibiotics2%39 of 2,112 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: 1,5882024: 1,84316%
Drugs named by CMS: 40 in 2024, 37 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. Rohan Raju Rengen offers telehealth to Medicare patients
Dr. Rengen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Rengen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Rohan Raju Rengen received $40,968 in industry payments from 2016 to 2025
CMS Open Payments shows 755 general payments to Dr. Rengen from 41 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 46% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $25,353.
General payments to Dr. Rengen by program year, 2016 to 2025
General payments to Dr. Rengen by kind, 2016 to 2025
- Speaker and faculty fees$18,67846%
- Food and beverage$15,32237%
- Travel and lodging$4,73912%
- Honoraria$1,9005%
- Education$3281%
Companies that paid Dr. Rengen the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Rohan Raju Rengen'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Rohan Raju Rengen
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. Rohan Raju Rengen's NPI number?
Dr. Rohan Raju Rengen's NPI number is 1609067792. It was assigned on August 5, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Rohan Raju Rengen?
Dr. Rohan Raju Rengen is a nephrologist in Frederick, Maryland. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Rohan Raju Rengen practice?
Dr. Rengen practices at 5205 Chairsmans Court, Suite 101, Frederick, MD 21703. Dr. Rengen's primary practice is DaVita Ballenger Creek Dialysis in Frederick, Maryland. Dmand AI also links Dr. Rengen to 1 hospital, 2 dialysis centers and 1 group practice or clinic.
What is Dr. Rohan Raju Rengen's office phone number?
The practice phone on file for Dr. Rengen is (301) 662-6572.
What is Dr. Rohan Raju Rengen's medical license number?
Dr. Rengen holds Maryland license H0065835.
Which hospitals is Dr. Rohan Raju Rengen affiliated with?
Dr. Rengen is affiliated with Frederick Health Hospital. Dmand AI links Dr. Rengen to 1 more hospital.
What medical group is Dr. Rohan Raju Rengen part of?
Dr. Rengen is linked to Frederick Kidney Care Associates.
Does Dr. Rohan Raju Rengen accept Medicare?
Yes. CMS data shows Dr. Rengen billed Medicare for 3,555 services in 2024, and Dr. Rengen accepts Medicare assignment.
Does Dr. Rohan Raju Rengen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Rengen as offering telehealth services.
How many Medicare patients does Dr. Rohan Raju Rengen see?
CMS counts 814 Medicare patients who saw Dr. Rengen in 2024, with an average age of 76.
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What services does Dr. Rohan Raju Rengen bill to Medicare?
In 2024, Dr. Rengen's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99232) and care management and other visits (99457).
What drugs does Dr. Rohan Raju Rengen prescribe most?
In 2024 Medicare Part D data, Dr. Rengen's most prescribed drugs by claims were Losartan Potassium, Amlodipine Besylate and Furosemide.
Has Dr. Rohan Raju Rengen received payments from drug or device companies?
CMS Open Payments shows $40,968 in general payments to Dr. Rengen from 41 companies from 2016 to 2025. The largest total came from Otsuka America Pharmaceutical, Inc.
How long has Dr. Rohan Raju Rengen been practicing?
Dr. Rengen graduated from medical school in 2001, 25 years ago.
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