Catherine Mary Freeman, M.D.
Allergy & Immunology (Internal Medicine) Physician · Phoenix, AZ
Catherine Mary Freeman, M.D. is an allergy & immunology (internal medicine) physician with a practice address in Phoenix, Arizona, and NPI 1770935538, issued on Jul 5, 2016. Check the license (Arizona 59339, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Catherine Mary Freeman
- Credential
- M.D.
- Primary taxonomy
- Allergy & Immunology (Internal Medicine) Physician 207RA0201X
- License number
- 59339 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1919 E Thomas RD, Phoenix, AZ 85016
- Phone
- (602) 933-4063
- Enumerated
- Jul 5, 2016
- Record last updated
- Feb 25, 2026
- Fax
- (602) 933-2423
- Medicare enrollment
- Enrolled (PECOS I20210707000531); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 1919 E Thomas RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Asmaa Aamir, M.D.Diagnostic Radiology Physician1912163791
- Madeline Aaron, APRN-RNPPediatric Nurse Practitioner1851134837
- Brandon Abbott, D.O., M.P.H.Hospitalist Physician1528350139
- Jason AbbottStudent in an Organized Health Care Education/Training Program1184257958
- Monica Abd El Nour, MDPediatric Infectious Diseases Physician1760044101
- Lindsay Abel, DOStudent in an Organized Health Care Education/Training Program1750222055
Verify Catherine Mary Freeman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 59339Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average allergy & immunology (internal medicine) physician in 2024
253 Medicare Part D claims for 60 beneficiaries, against an average of 789 among the 429 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Ipratropium Bromide28 claims
- Albuterol Sulfate Hfa20 claims
- Azelastine Hcl17 claims
- Prednisone15 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 78.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $13.50
1 payment: food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 321 providers of this specialty with any payment received $7,456.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Mayo Clinic ArizonaScottsdale, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Allergy & Immunology (Internal Medicine) Physician providers in Arizona
There are 8 allergy & immunology (internal medicine) physician records in Arizona.
Other allergy & immunology (internal medicine) physician records in Arizona
- Randy Horwitz, MD, PHDTucson, AZ1194790493
- Kiranjit Khalsa, MDPhoenix, AZ1720321250
- Ariel Leung, MDChandler, AZ1366061129
- Gilbert Ortega, M.D.Peoria, AZ1003349242
- Jacob Pinnas, M. D.Tucson, AZ1427389303
- Puneet Shroff, M.D.Tucson, AZ1265645782
- Alex Wonnaparhown, MDScottsdale, AZ1154856052
Common questions
What is Catherine Mary Freeman, M.D.'s NPI number?
Catherine Mary Freeman, M.D.'s National Provider Identifier (NPI) is 1770935538, issued on Jul 5, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Mary Freeman, M.D. located?
The NPPES record lists a practice address at 1919 E Thomas RD, Phoenix, AZ, 85016. Phone: (602) 933-4063. Providers update this record themselves, so call before visiting.
How can I verify Catherine Mary Freeman, M.D.'s license?
NPPES lists Arizona license number 59339, 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 Catherine Mary Freeman, M.D. prescribe under Medicare Part D?
In 2024, Catherine Mary Freeman, M.D. had 253 Medicare Part D claims for 60 beneficiaries; the average among allergy & immunology (internal medicine) physician prescribers was 789. Part D covers Medicare prescriptions only.
What is Catherine Mary Freeman, M.D.'s MIPS final score?
The 2023 MIPS final score is 78.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.