Marylena Mizerak, MD
NPI 1326614116 · Internal Medicine Physician · Harrisburg, PA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marylena Mizerak, MD is a Internal Medicine Physician provider in Harrisburg, PA (NPI 1326614116).
Provider details
- NPI number
- 1326614116
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD486010 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
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) |
|---|---|
| Atorvastatin Calcium | 41 |
| Levothyroxine Sodium | 20 |
| Amlodipine Besylate | 15 |
| Gabapentin | 15 |
| Duloxetine Hcl | 14 |
| Carvedilol | 13 |
| Budesonide/Formoterol Fumaratebrand: Symbicort | 12 |
| Tamsulosin Hcl | 11 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-06-02
- Last updated
- 2025-06-10
- Certified
- 2025-06-10
Frequently asked questions
- What is Marylena Mizerak's NPI number?
- Marylena Mizerak's National Provider Identifier (NPI) is 1326614116, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marylena Mizerak's specialty?
- Marylena Mizerak is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marylena Mizerak located?
- Marylena Mizerak's practice location on file with NPPES is 1540 Alexandra Ln, Harrisburg, PA 17110-3656.
- What is Marylena Mizerak's phone number?
- The practice phone number listed in the NPPES registry for Marylena Mizerak is (717) 798-3363.
- Does Marylena Mizerak accept Medicare?
- Marylena Mizerak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marylena Mizerak's NPI active?
- Yes — Marylena Mizerak's NPI (1326614116) is active in the NPPES registry as of the last update on 2025-06-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.