NPPES file of Aug 9, 2026

Katherine Chen Rollins, DO

Internal Medicine Physician · Phoenix, AZ

Katherine Chen Rollins, DO is an internal medicine physician with a practice address in Phoenix, Arizona, and NPI 1972127033, issued on Jun 4, 2020. Check the license (Arizona 010074, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1972127033
Name
Katherine Chen Rollins
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
010074 AZ
Self-reported in NPPES; status is on the state search
Practice location
4530 E Muirwood Dr Ste 105, Phoenix, AZ 85048
Phone
(480) 961-2307
Enumerated
Jun 4, 2020
Record last updated
Mar 27, 2024
Fax
(480) 961-0419
Medicare enrollment
Enrolled (PECOS I20240321003200); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4530 E Muirwood Dr Ste 105

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Zachary Burkhart, MDInternal Medicine Physician1831696384
  2. Colten Dillinger, DOInternal Medicine Physician1275282493
  3. Megan Hunt, M.D.Family Medicine Physician1538506787
  4. Jenny Khan, FNPFamily Nurse Practitioner1487824322
  5. Spogmai Khan, MDInternal Medicine Physician1427631472
  6. Fatima Martinez, MDInternal Medicine Physician1912327859

Verify Katherine Chen Rollins in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 010074
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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92% fewer Medicare Part D claims than the average internal medicine physician in 2024

269 Medicare Part D claims for 151 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 21 claims were for opioids.

  1. Katherine Rollins269
  2. Specialty average3,176

Most prescribed

  1. Cefdinir26 claims
  2. Azithromycin13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Aia Hospitalists LLCPhoenix, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Katherine Chen Rollins among 2,853 internal medicine physician records in Arizona

Katherine Chen Rollins, DO is one of 2,853 internal medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 81% of them.

  • NPI issued2020 · 81% of these records are older, 16% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2020 · median 2003 among the 1,643 with a school on file
  • Record last updated2024 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

695 internal medicine physician records list a practice address in Phoenix

They are 695 of the 31,399 NPPES records with a practice address in Phoenix, and 2,853 internal medicine physician records in Arizona.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Pooja Bhardwaja, M.D.Phoenix, AZ 850481285621128
  2. Nicholas Caputo, D.O.Phoenix, AZ 850481609867829
  3. Connie Chan, MDPhoenix, AZ 850481740252584
  4. Sai Lakshmi Chandran, MDPhoenix, AZ 850481437123593
  5. Rajan Gaur, M.D.Phoenix, AZ 850481720047590
  6. Edouard Mouaikel, M.D.Phoenix, AZ 850481134120892
  7. Michael Pang, M.D.Phoenix, AZ 850481033105200
  8. Norberto Perez, D.O.Phoenix, AZ 850481083600167

Common questions

What is Katherine Chen Rollins, DO's NPI number?

Katherine Chen Rollins, DO's National Provider Identifier (NPI) is 1972127033, issued on Jun 4, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Chen Rollins, DO located?

The NPPES record lists a practice address at 4530 E Muirwood Dr Ste 105, Phoenix, AZ, 85048. Phone: (480) 961-2307. Providers update this record themselves, so call before visiting.

How can I verify Katherine Chen Rollins, DO's license?

NPPES lists Arizona license number 010074, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Katherine Chen Rollins, DO prescribe under Medicare Part D?

In 2024, Katherine Chen Rollins, DO had 269 Medicare Part D claims for 151 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.