NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1891964508 PA-C
Verify on CMS → Catherine McInnis, PA-C
Physician Assistant in Portland, Maine.
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
2K
Medicare Part D claims · 199 beneficiaries · Physician Assistant avg: 790
MIPS score
98.1/100
▲ 15 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Catherine McInnis, PA-C reported a CMS MIPS final score of 98.1/100 - above the 83.1 national average - and filed 1,509 Medicare Part D claims in 2023.
- 98.1/100
- MIPS score · +15 vs avg
- 2K
- Part D claims, 2023
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.
Catherine McInnis, PA-C's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
98 Top 11% higher than 89% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Catherine McInnis, PA-C sits
This provider among physician assistant peers
Across the 27,054 physician assistant providers who report both Medicare Part D prescribing and a MIPS quality score, Catherine McInnis, PA-C writes more Part D claims than 89% of them and scores higher on MIPS quality than 90% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one physician assistant peer from a representative sample of 60; the gold marker is Catherine McInnis, PA-C. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Catherine McInnis, PA-C?
High performer (top quartile)Primary specialty
Physician Assistant
Medicare Part D claims
1,509 91% vs specialty avg
MIPS final score
98.1/100 15 pts vs avg
Specialty distribution in Maine
How Physician Assistant compares to other specialties among Maine providers
Medicare quality performance, MIPS
Catherine McInnis, PA-C's 2023 MIPS final score plotted against the Physician Assistant national average
- MIPS Final Score
- 98.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Physician Assistant) - 98.1/100 vs national avg 83.1
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).
Catherine McInnis, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 22 BRAMHALL ST, Portland, ME, 04102, with a listed phone of (207) 662-0111. NPI 1891964508 was issued on 02/27/2008.
Medicare Part D records for calendar year 2023 show 1,509 prescription claims written by this provider, covering 199 Medicare beneficiaries and totaling roughly $192K in drug spend, with an opioid prescribing rate of 7.0%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 98.1/100 for the 2023 performance year (Quality 86.1), compared with the national average of 83.1.
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 | 1891964508 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PA-C |
| Gender | Female |
| NPI Issued | 02/27/2008 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
98.0699
Final Score
Avg: 83.1
86.1398
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,509
Total Claims
$192K
Total Drug Cost
199
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,528
- Total Day Supply
- 32,529
- Generic Drug Cost
- $42K
- Opioid Claims
- 105 (7.0% rate)
- Antibiotic Claims
- 35
Patient Demographics
- Average Patient Age
- 79.1 years
- Avg HCC Risk Score
- 2.66
- Gender Split
- 56% female / 44% male
- Age Distribution
- <65: 21, 65-74: 44, 75-84: 68, 85+: 66
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Catherine McInnis, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Sertraline Hcl
Sertraline Hcl
98 claims
- Atorvastatin Calcium
Atorvastatin Calcium
71 claims
- Warfarin Sodium
Warfarin Sodium
66 claims
- Eliquis
Eliquis
60 claims
- Amlodipine Besylate
Amlodipine Besylate
46 claims
- Gabapentin
Gabapentin
46 claims
- Omeprazole 39
Omeprazole
39 claims
- Oxycodone Hcl 38
Oxycodone Hcl
38 claims
| Drug | Claims |
|---|---|
| Sertraline Hcl | 98 |
| Atorvastatin Calcium | 71 |
| Warfarin Sodium | 66 |
| Eliquis Apixaban | 60 |
| Amlodipine Besylate | 46 |
| Gabapentin | 46 |
| Omeprazole | 39 |
| Oxycodone Hcl | 38 |
| Metoprolol Succinate | 36 |
| Furosemide | 32 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Catherine McInnis, 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
Catherine McInnis, PA-C's 1,509 claims are above the specialty average of 790.
Nearby Physician Assistant Providers in Maine
Other clinicians with the same primary specialty enrolled in Maine, drawn from the same CMS NPPES roster as McInnis.
Yusuf Abdi
Oakland, ME
Dr. Joshua Abrams
PA-C
Portland, ME
Dr. Haley Acker
PA-C
Portland, ME
Dr. Mary Adorisio
PA-C
Biddeford, ME
Dr. Bobak Ahouraie
PA
Sanford, ME
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 Maine 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 Catherine McInnis, PA-C's specialty? ▼
Catherine McInnis, PA-C specializes in Physician Assistant and practices in Portland, Maine. Credentials: PA-C.
How much does Catherine McInnis, PA-C prescribe under Medicare Part D? ▼
In 2023, Catherine McInnis, PA-C wrote 1,509 Medicare Part D claims totaling $192K in drug costs for 199 beneficiaries.
What is Catherine McInnis, PA-C's Medicare quality score? ▼
Catherine McInnis, PA-C has a CMS MIPS Final Score of 98.1/100 (Quality: 86.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Catherine McInnis, PA-C located? ▼
Catherine McInnis, PA-C is located at 22 BRAMHALL ST, Portland, ME, 04102. Phone: (207) 662-0111.
What is Catherine McInnis, PA-C's NPI number? ▼
Catherine McInnis, PA-C's National Provider Identifier (NPI) is 1891964508, issued on 02/27/2008.
Does Catherine McInnis, PA-C prescribe opioids? ▼
Yes, Catherine McInnis, PA-C had 105 opioid claims in 2023 with an opioid prescribing rate of 7.0%.
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 Catherine McInnis, PA-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Catherine McInnis, PA-C's most frequently prescribed drugs include Sertraline Hcl, Atorvastatin Calcium, Warfarin Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Catherine McInnis, PA-C accept Medicare? ▼
Catherine McInnis, PA-C appears in CMS Medicare data with 1,509 Part D claims and 199 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Catherine McInnis, PA-C's credentials? ▼
Catherine McInnis, PA-C's NPI is 1891964508 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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
Compiled from official public sources by the PlainDoctor editorial team.
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.