Cierra O'Neill, PA-C
NPI 1679257364 · Medical Physician Assistant · Baltimore, MD
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cierra O'Neill, PA-C is a Medical Physician Assistant provider in Baltimore, MD (NPI 1679257364).
Provider details
- NPI number
- 1679257364
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- Yes
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 tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
83% 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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 44 | 23 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 27 | 12 |
| Atorvastatin Calcium | 24 | — |
| Metoprolol Tartrate | 24 | 22 |
| Amiodarone Hcl | 17 | 15 |
| Furosemide | 12 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-06-13
- Last updated
- 2024-10-29
- Certified
- 2024-10-29
Frequently asked questions
- What is Cierra O'Neill's NPI number?
- Cierra O'Neill's National Provider Identifier (NPI) is 1679257364, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cierra O'Neill's specialty?
- Cierra O'Neill is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Cierra O'Neill located?
- Cierra O'Neill's practice location on file with NPPES is 3333 N Calvert St, Baltimore, MD 21218-2867.
- What is Cierra O'Neill's phone number?
- The practice phone number listed in the NPPES registry for Cierra O'Neill is (410) 554-6550.
- Does Cierra O'Neill accept Medicare?
- Cierra O'Neill is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cierra O'Neill's NPI active?
- Yes — Cierra O'Neill's NPI (1679257364) is active in the NPPES registry as of the last update on 2024-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.