Katherine Zitello, MD
NPI 1427685270 · Internal Medicine Physician · Great Falls, MT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Zitello, MD is a Internal Medicine Physician provider in Great Falls, MT (NPI 1427685270).
Provider details
- NPI number
- 1427685270
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 88126 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
6 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
477 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 223 | $95 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 93 | $140 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 53 | $130 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 38 | $127 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 33 | $176 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 85 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 135 | 35 |
| Losartan Potassium | 105 | 29 |
| Atorvastatin Calcium | 101 | 37 |
| Gabapentin | 100 | 26 |
| Amlodipine Besylate | 92 | 23 |
| Lisinopril | 86 | 25 |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$306 across 12 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-03-23
- Last updated
- 2024-04-04
- Certified
- 2024-04-04
Frequently asked questions
- What is Katherine Zitello's NPI number?
- Katherine Zitello's National Provider Identifier (NPI) is 1427685270, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Zitello's specialty?
- Katherine Zitello is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Zitello located?
- Katherine Zitello's practice location on file with NPPES is 1401 25th St S, Great Falls, MT 59405-5183.
- What is Katherine Zitello's phone number?
- The practice phone number listed in the NPPES registry for Katherine Zitello is (406) 731-8888.
- Does Katherine Zitello accept Medicare?
- Katherine Zitello is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Zitello's NPI active?
- Yes — Katherine Zitello's NPI (1427685270) is active in the NPPES registry as of the last update on 2024-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.