NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1306327234 PA-C
Verify on CMS → Mickaela O'Neill, PA-C
Physician Assistant in Glendale, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 150,974 in Physician Assistant, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
3K
Medicare Part D claims · 335 beneficiaries · Physician Assistant avg: 790
Generic prescribing
87%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Mickaela O'Neill, PA-C filed 2,836 Medicare Part D claims in 2023 as a Physician Assistant in Glendale, Arizona, prescribing 87% generic.
- 3K
- Part D claims, 2023
- 87%
- generic prescribing
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Mickaela O'Neill, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,836 Top 12% higher than 88% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Mickaela O'Neill, PA-C?
Quality data not reportedPrimary specialty
Physician Assistant
Medicare Part D claims
2,836 259% vs specialty avg
Specialty distribution in Arizona
How Physician Assistant compares to other specialties among Arizona providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Physician Assistant. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Mickaela O'Neill, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 8608 N 59TH AVE, Glendale, AZ, 85302, with a listed phone of (623) 979-2565. NPI 1306327234 was issued on 08/28/2018.
Medicare Part D records for calendar year 2023 show 2,836 prescription claims written by this provider, covering 335 Medicare beneficiaries and totaling roughly $334K in drug spend, split 12% brand-name and 87% generic by claim count, with an opioid prescribing rate of 1.0%.
Physician Assistant is a high-volume specialty nationwide, with 150,974 enrolled providers across 56 states and an average of 790 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1306327234 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PA-C |
| Gender | Female |
| NPI Issued | 08/28/2018 |
Brand vs generic prescribing mix · Typical
Mickaela O'Neill, PA-C - brand share 12.0%
Physician Assistant average
12% brand-name claims vs 87% generic, on 2,836 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
2,836
Total Claims
$334K
Total Drug Cost
335
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 6,216
- Total Day Supply
- 177,191
- Brand vs Generic
- 12% brand / 87% generic
- Brand Drug Cost
- $292K
- Generic Drug Cost
- $41K
- Opioid Claims
- 27 (1.0% rate)
- Antibiotic Claims
- 138
Patient Demographics
- Average Patient Age
- 71.6 years
- Avg HCC Risk Score
- 1.63
- Gender Split
- 67% female / 33% male
- Age Distribution
- <65: 50, 65-74: 151, 75-84: 104, 85+: 30
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mickaela O'Neill, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
134 claims
- Losartan Potassium
Losartan Potassium
93 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
79 claims
- Famotidine
Famotidine
78 claims
- Amlodipine Besylate
Amlodipine Besylate
74 claims
- Metformin Hcl
Metformin Hcl
72 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
69 claims
- Sertraline Hcl
Sertraline Hcl
68 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 134 |
| Losartan Potassium | 93 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 79 |
| Famotidine | 78 |
| Amlodipine Besylate | 74 |
| Metformin Hcl | 72 |
| Rosuvastatin Calcium | 69 |
| Sertraline Hcl | 68 |
| Levothyroxine Sodium | 61 |
| Lisinopril | 61 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Mickaela O'Neill, PA-C fits within the Physician Assistant landscape nationally.
150,974
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider
Mickaela O'Neill, PA-C's 2,836 claims are above the specialty average of 790.
Nearby Physician Assistant Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as O'Neill.
Dr. Allison Abbey
PA-C
Cottonwood, AZ
Dr. Carley Abbott
PA-C
Chandler, AZ
Dr. Delmas Abbott
PA-C
Prescott, AZ
Dr. Sarah Abbott
PA
Phoenix, AZ
Dr. Kristen Abel
PA-C
Mesa, AZ
Compare Physician Assistant nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Arizona medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Physician Assistant peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Mickaela O'Neill, PA-C's specialty? ▼
Mickaela O'Neill, PA-C specializes in Physician Assistant and practices in Glendale, Arizona. Credentials: PA-C.
How much does Mickaela O'Neill, PA-C prescribe under Medicare Part D? ▼
In 2023, Mickaela O'Neill, PA-C wrote 2,836 Medicare Part D claims totaling $334K in drug costs for 335 beneficiaries.
Where is Mickaela O'Neill, PA-C located? ▼
Mickaela O'Neill, PA-C is located at 8608 N 59TH AVE, Glendale, AZ, 85302. Phone: (623) 979-2565.
What is Mickaela O'Neill, PA-C's NPI number? ▼
Mickaela O'Neill, PA-C's National Provider Identifier (NPI) is 1306327234, issued on 08/28/2018.
Does Mickaela O'Neill, PA-C prescribe more brand-name or generic drugs? ▼
Mickaela O'Neill, PA-C's prescribing is 12% brand-name and 87% generic drugs by claim count, with $292K in brand drug costs.
Does Mickaela O'Neill, PA-C prescribe opioids? ▼
Yes, Mickaela O'Neill, PA-C had 27 opioid claims in 2023 with an opioid prescribing rate of 1.0%.
How many Physician Assistant providers are there in the US? ▼
There are 150,974 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does Mickaela O'Neill, PA-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Mickaela O'Neill, PA-C's most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mickaela O'Neill, PA-C accept Medicare? ▼
Mickaela O'Neill, PA-C appears in CMS Medicare data with 2,836 Part D claims and 335 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mickaela O'Neill, PA-C's credentials? ▼
Mickaela O'Neill, PA-C's NPI is 1306327234 with credentials PA-C. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.