Stephanie Zwonitzer, CRNP
NPI 1013457050 · Nurse Practitioner · Annapolis, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephanie Zwonitzer, CRNP is a Nurse Practitioner provider in Annapolis, MD (NPI 1013457050).
Provider details
- NPI number
- 1013457050
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP
- Sex
- Female
- Sole proprietor
- No
- License
- R201878 (MD)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
9 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
5,845 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 1,394 | $14 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 903 | $81 |
| Automated Urinalysis Test81003 | 745 | $2 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 568 | $113 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 508 | $55 |
| Insertion of Needle Into Vein for Collection of Blood Sample |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 475 | 180 |
| Vibegronbrand: Gemtesa | 300 | 103 |
| Finasteride | 198 | 64 |
| Estradiol | 91 | 66 |
| Mirabegronbrand: Myrbetriq | 72 | 27 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 50 | 33 |
| Oxybutynin Chloridebrand: Oxybutynin Chloride Er |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,951 across 101 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
- 2017-02-23
- Last updated
- 2021-09-21
- Certified
- 2021-09-21
Frequently asked questions
- What is Stephanie Zwonitzer's NPI number?
- Stephanie Zwonitzer's National Provider Identifier (NPI) is 1013457050, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie Zwonitzer's specialty?
- Stephanie Zwonitzer is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Stephanie Zwonitzer located?
- Stephanie Zwonitzer's practice location on file with NPPES is 2001 Medical Pkwy, Annapolis, MD 21401.
- What is Stephanie Zwonitzer's phone number?
- The practice phone number listed in the NPPES registry for Stephanie Zwonitzer is (443) 481-1750.
- Does Stephanie Zwonitzer accept Medicare?
- Stephanie Zwonitzer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephanie Zwonitzer's NPI active?
- Yes — Stephanie Zwonitzer's NPI (1013457050) is active in the NPPES registry as of the last update on 2021-09-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.