NPI registry status
Active
2026 NPPES data Surgical Physician Assistant NPI 1114329125 PA-C
Verify on CMS → Michael Guerin, PA-C
Surgical Physician Assistant in Middlebury, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,179 in Surgical 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
558
Medicare Part D claims · 300 beneficiaries · Surgical Physician Assistant avg: 316
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Michael Guerin, PA-C filed 558 Medicare Part D claims in 2023 as a Surgical Physician Assistant in Middlebury, Connecticut, prescribing 96% generic.
- 558
- Part D claims, 2023
- 96%
- 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.
Michael Guerin, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
558 Top 34% higher than 66% 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 Michael Guerin, PA-C?
Quality data not reportedPrimary specialty
Surgical Physician Assistant
Medicare Part D claims
558 77% vs specialty avg
Specialty distribution in Connecticut
How Surgical Physician Assistant compares to other specialties among Connecticut 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 Surgical 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).
Michael Guerin, PA-C appears in the CMS NPPES registry as a Surgical Physician Assistant provider holding PA-C credentials at 1579 STRAITS TURNPIKE, SUITE E, Middlebury, CT, 06762, with a listed phone of (203) 598-0700. NPI 1114329125 was issued on 09/22/2014.
Medicare Part D records for calendar year 2023 show 558 prescription claims written by this provider, covering 300 Medicare beneficiaries and totaling roughly $6K in drug spend, split 4% brand-name and 96% generic by claim count, with an opioid prescribing rate of 20.4%.
Surgical Physician Assistant is a mid-sized specialty nationwide, with 16,179 enrolled providers across 54 states and an average of 316 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 | 1114329125 |
|---|---|
| Specialty | Surgical Physician Assistant |
| Credentials | PA-C |
| Gender | Male |
| NPI Issued | 09/22/2014 |
Hospital and facility affiliations
Facilities where Michael Guerin, PA-C bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Orthopaedics New England, PC
Middlebury, CT
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Michael Guerin, PA-C - brand share 4.0%
Surgical Physician Assistant average
4% brand-name claims vs 96% generic, on 558 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.
558
Total Claims
$6K
Total Drug Cost
300
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 639
- Total Day Supply
- 14,248
- Brand vs Generic
- 4% brand / 96% generic
- Brand Drug Cost
- $790
- Generic Drug Cost
- $5K
- Opioid Claims
- 114 (20.4% rate)
- Antibiotic Claims
- 16
Patient Demographics
- Average Patient Age
- 73.2 years
- Avg HCC Risk Score
- 0.93
- Gender Split
- 64% female / 36% male
- Age Distribution
- <65: 16, 65-74: 160, 75-84: 108, 85+: 16
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Michael Guerin, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Meloxicam
Meloxicam
244 claims
- Celecoxib 65
Celecoxib
65 claims
- Oxycodone Hcl 60
Oxycodone Hcl
60 claims
- Hydromorphone Hcl 32
Hydromorphone Hcl
32 claims
- Tizanidine Hcl 30
Tizanidine Hcl
30 claims
- Methocarbamol 28
Methocarbamol
28 claims
- Tramadol Hcl 13
Tramadol Hcl
13 claims
- Gabapentin 11
Gabapentin
11 claims
| Drug | Claims |
|---|---|
| Meloxicam | 244 |
| Celecoxib | 65 |
| Oxycodone Hcl | 60 |
| Hydromorphone Hcl | 32 |
| Tizanidine Hcl | 30 |
| Methocarbamol | 28 |
| Tramadol Hcl | 13 |
| Gabapentin | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Surgical Physician Assistant Overview
How Michael Guerin, PA-C fits within the Surgical Physician Assistant landscape nationally.
16,179
Surgical Physician Assistant Providers in US
54
States with Surgical Physician Assistant
316
Avg Claims per Provider
Michael Guerin, PA-C's 558 claims are above the specialty average of 316.
Nearby Surgical Physician Assistant Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Guerin.
Dr. Lauren Adams
PA-C
Fairfield, CT
Dr. Sarah Adams
PA-C
Waterbury, CT
Sofia Adams
Hartford, CT
Dr. Aasiya Ahmed
PA-C
Norwich, CT
Dr. Jason Allard
PA-C
Norwich, CT
Compare Surgical 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 Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Surgical 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 Michael Guerin, PA-C's specialty? ▼
Michael Guerin, PA-C specializes in Surgical Physician Assistant and practices in Middlebury, Connecticut. Credentials: PA-C.
How much does Michael Guerin, PA-C prescribe under Medicare Part D? ▼
In 2023, Michael Guerin, PA-C wrote 558 Medicare Part D claims totaling $6K in drug costs for 300 beneficiaries.
Where is Michael Guerin, PA-C located? ▼
Michael Guerin, PA-C is located at 1579 STRAITS TURNPIKE, SUITE E, Middlebury, CT, 06762. Phone: (203) 598-0700.
What is Michael Guerin, PA-C's NPI number? ▼
Michael Guerin, PA-C's National Provider Identifier (NPI) is 1114329125, issued on 09/22/2014.
Does Michael Guerin, PA-C prescribe more brand-name or generic drugs? ▼
Michael Guerin, PA-C's prescribing is 4% brand-name and 96% generic drugs by claim count, with $790 in brand drug costs.
Does Michael Guerin, PA-C prescribe opioids? ▼
Yes, Michael Guerin, PA-C had 114 opioid claims in 2023 with an opioid prescribing rate of 20.4%.
How many Surgical Physician Assistant providers are there in the US? ▼
There are 16,179 Surgical Physician Assistant providers across 54 states in the US. The average Surgical Physician Assistant provider writes 316 Medicare Part D claims per year.
What drugs does Michael Guerin, PA-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Michael Guerin, PA-C's most frequently prescribed drugs include Meloxicam, Celecoxib, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Guerin, PA-C accept Medicare? ▼
Michael Guerin, PA-C appears in CMS Medicare data with 558 Part D claims and 300 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Guerin, PA-C's credentials? ▼
Michael Guerin, PA-C's NPI is 1114329125 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
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.