Katrina Zwack, DNP
NPI 1942870472 · Nurse Practitioner · Phoenix, AZ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katrina Zwack, DNP is a Nurse Practitioner provider in Phoenix, AZ (NPI 1942870472).
Provider details
- NPI number
- 1942870472
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- AG06210236 (MN)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
4 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
701 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 | 649 | $107 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 39 | $76 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 13 | $76 |
Typical Medicare-allowed amounts for these services range $76–$107 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 114 | 66 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 103 | 45 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 60 | 22 |
| Umeclidinium Brm/Vilanterol Trbrand: Anoro Ellipta | 40 | 14 |
| Azithromycin | 37 | 26 |
| Tiotropium Bromidebrand: Spiriva Respimat | 33 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,324 across 45 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
- 2021-06-28
- Last updated
- 2021-06-28
- Certified
- 2021-06-25
Frequently asked questions
- What is Katrina Zwack's NPI number?
- Katrina Zwack's National Provider Identifier (NPI) is 1942870472, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katrina Zwack's specialty?
- Katrina Zwack is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katrina Zwack located?
- Katrina Zwack's practice location on file with NPPES is 1111 E Mcdowell Rd, Phoenix, AZ 85006-2612.
- What is Katrina Zwack's phone number?
- The practice phone number listed in the NPPES registry for Katrina Zwack is (602) 839-2000.
- Does Katrina Zwack accept Medicare?
- Katrina Zwack is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katrina Zwack's NPI active?
- Yes — Katrina Zwack's NPI (1942870472) is active in the NPPES registry as of the last update on 2021-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.