Katherine Ann Zitello, MD
Internal Medicine Physician · Great Falls, MT
Katherine Ann Zitello, MD is an internal medicine physician with a practice address in Great Falls, Montana, and NPI 1427685270, issued on Mar 23, 2020. Check the license (Montana 88126, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Katherine Ann Zitello
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 88126 MT
Self-reported in NPPES; status is on the state search - Practice location
- 1401 25TH St S, Great Falls, MT 59405
- Phone
- (406) 731-8888
- Enumerated
- Mar 23, 2020
- Record last updated
- Apr 4, 2024
- Fax
- (406) 731-8318
- Medicare enrollment
- Enrolled (PECOS I20231004003601); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 324 in Montana → Look up another NPI →
Also registered at 1401 25TH St S
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jill Aitken, AUDAudiologist1730386020
- Jamie Aleba, PAMedical Physician Assistant1184929572
- Thomas Attaway, MDGastroenterology Physician1922012442
- Lily AvgustovskiyNurse Practitioner1093122335
Verify Katherine Ann Zitello in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 88126Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% more Medicare Part D claims than the average internal medicine physician in 2024
3,280 Medicare Part D claims for 204 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. 110 claims were for opioids.
Most prescribed
- Levothyroxine Sodium135 claims
- Losartan Potassium105 claims
- Atorvastatin Calcium101 claims
- Gabapentin100 claims
- Amlodipine Besylate92 claims
- Lisinopril86 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.
Industry payments in 2024: $306.30
12 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 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.
One hospital affiliation
- Benefis Hospitals IncGreat Falls, MT · Acute Care Hospitals2 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Katherine Ann Zitello among 324 internal medicine physician records in Montana
Katherine Ann Zitello, MD is one of 324 internal medicine physician records with a practice address in Montana. 72% 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 93% of them.
- NPI issued2020 · 93% of these records are older, 6% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2020 · median 2006 among the 191 with a school on file
- Record last updated2024 · 52% 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 Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 internal medicine physician records list a practice address in Great Falls
They are 21 of the 1,798 NPPES records with a practice address in Great Falls, and 324 internal medicine physician records in Montana.
All 324 in Montana → Every provider in Great Falls → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sean Banks, DOGreat Falls, MT 594051720374648
- Bradford Bergman, MDGreat Falls, MT 594051235130113
- Kathleen Blair, DOGreat Falls, MT 594051346335189
- Lorenzo Boccuzzi, D.O.Great Falls, MT 594051598734980
- Gary Buffington, MDGreat Falls, MT 594051922009802
- Steven Chrzanowski, MDGreat Falls, MT 594051568454692
- Eve Gerasimou, MDGreat Falls, MT 594051457312464
- Stacy Kingsland, MDGreat Falls, MT 594051528160173
Common questions
What is Katherine Ann Zitello, MD's NPI number?
Katherine Ann Zitello, MD's National Provider Identifier (NPI) is 1427685270, issued on Mar 23, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Ann Zitello, MD located?
The NPPES record lists a practice address at 1401 25TH St S, Great Falls, MT, 59405. Phone: (406) 731-8888. Providers update this record themselves, so call before visiting.
How can I verify Katherine Ann Zitello, MD's license?
NPPES lists Montana license number 88126, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine Ann Zitello, MD prescribe under Medicare Part D?
In 2024, Katherine Ann Zitello, MD had 3,280 Medicare Part D claims for 204 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.