Dr. Katherine Chen Rollins, DO
- Medicare services, 2024
- 755
- Medicare patients, 2024
- 334
- Part D claims, 2024
- 269
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 1955 West Frye Road, Chandler, AZ 85224
- Practice phone
- Call (480) 728-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Rollins' professional email, personal email and mobile number
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Dr. Katherine Chen Rollins is an internist in Chandler, Arizona
Dr. Rollins practices at Dignity Health Chandler Regional Medical Center in Chandler, Arizona, part of CommonSpirit Health.
Dr. Rollins' NPI, 1972127033, was assigned on June 4, 2020. Dr. Rollins holds Arizona license 010074.
- NPI
- 1972127033NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618314980
- NPI enumeration date
- June 4, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (480) 728-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Katherine Chen Rollins practices at Dignity Health Chandler Regional Medical Center in Chandler, Arizona
Dr. Rollins' primary practice is Dignity Health Chandler Regional Medical Center, at 1955 West Frye Road, Chandler, AZ 85224 in Maricopa County. The practice phone is (480) 728-3000.
- Dignity Health Chandler Regional Medical Center1955 West Frye Road, Chandler, AZ 85224 · Maricopa CountyPhone(480) 728-3000
Source: Dmand AI Affiliation Data
Dr. Katherine Chen Rollins is affiliated with 2 sites of care and 1 medical group
Dr. Rollins' primary practice is Dignity Health Chandler Regional Medical Center in Chandler, Arizona, part of CommonSpirit Health. The medical group on file is Alliance Hospitalists. Dmand AI also links Dr. Rollins to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Katherine Chen Rollins' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rollins practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health Chandler Regional Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Katherine Chen Rollins is one of 2,420 internists in Arizona
Internal medicine is Dr. Rollins' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Rollins is licensed in Arizona.
Specialties and state licenses
- Internal medicine, ArizonaPrimary
Internists near Dr. Rollins
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. Katherine Chen Rollins billed Medicare for 755 services in 2024
CMS data shows 755 Medicare services from Dr. Rollins across 5 procedure codes in 2024, for 334 Medicare patients. Medicare paid $68,482 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Rollins compared with the Arizona median for internists, 2024
- Dr. Rollins
- Arizona median
- Medicare services
- 755vs 47659% above
- Medicare patients
- 334vs 20563% above
- Part D claims
- 39vs 26085% below
Medians across 2,300 internists in Arizona with Dmand AI profiles that report each measure.
Dr. Rollins' 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. Rollins and other internists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Katherine Chen Rollins treated 334 Medicare patients in 2024, average age 77
CMS counts 334 Medicare patients who saw Dr. Rollins in 2024. The largest group is 75 to 84, with 148 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% 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. Rollins' median patient age at 71, with 56% women.
Dr. Rollins' Medicare patients by age, 2024
Dr. Rollins' Medicare patients by sex, 2024
- Women18555%
- Men14945%
Chronic conditions among Dr. Rollins' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Chronic kidney disease56%
- Ischemic heart disease50%
- Diabetes47%
- Atrial fibrillation42%
- Heart failure42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Rollins' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Katherine Chen Rollins wrote 269 Medicare Part D claims in 2024
In 2024, Dr. Rollins wrote 269 Medicare Part D claims for 151 patients. 88% of them were for generic drugs. CMS names the drug for 39 of them, across 2 drugs with 11 or more claims each, at $355 in total drug cost.
Dr. Rollins' Part D claims by kind of drug, 2024
- Generic238 claims88%
- Brand-name31 claims12%
Dr. Rollins' 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. Rollins' Part D claims, 2024
- Opioids8%21 of 269 claims
- Antibiotics25%66 of 269 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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. Katherine Chen Rollins takes part in Medicare
Dr. Rollins 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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Sources for Dr. Katherine Chen Rollins'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) |
| 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. Katherine Chen Rollins
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What is Dr. Katherine Chen Rollins' NPI number?
Dr. Katherine Chen Rollins' NPI number is 1972127033. It was assigned on June 4, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Katherine Chen Rollins?
Dr. Katherine Chen Rollins is an internist in Chandler, Arizona. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Katherine Chen Rollins practice?
Dr. Rollins practices at 1955 West Frye Road, Chandler, AZ 85224. Dr. Rollins' primary practice is Dignity Health Chandler Regional Medical Center in Chandler, Arizona, part of CommonSpirit Health. Dmand AI also links Dr. Rollins to 1 group practice or clinic.
What is Dr. Katherine Chen Rollins' office phone number?
The practice phone on file for Dr. Rollins is (480) 728-3000.
What is Dr. Katherine Chen Rollins' medical license number?
Dr. Rollins holds Arizona license 010074.
Which hospitals is Dr. Katherine Chen Rollins affiliated with?
Dr. Rollins practices at Dignity Health Chandler Regional Medical Center in Chandler, Arizona.
What medical group is Dr. Katherine Chen Rollins part of?
Dr. Rollins is linked to Alliance Hospitalists.
Does Dr. Katherine Chen Rollins accept Medicare?
Yes. CMS data shows Dr. Rollins billed Medicare for 755 services in 2024, and Dr. Rollins accepts Medicare assignment.
How many Medicare patients does Dr. Katherine Chen Rollins see?
CMS counts 334 Medicare patients who saw Dr. Rollins in 2024, with an average age of 77.
What services does Dr. Katherine Chen Rollins bill to Medicare?
In 2024, Dr. Rollins' most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99223).
What drugs does Dr. Katherine Chen Rollins prescribe most?
In 2024 Medicare Part D data, Dr. Rollins' most prescribed drugs by claims were Cefdinir and Azithromycin.
How long has Dr. Katherine Chen Rollins been practicing?
Dr. Rollins graduated from medical school in 2020, 6 years ago.
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