NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1093258865 PA-C
Verify on CMS → Shelby Spazzarini, PA-C
Physician Assistant in Bristol, 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 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
5K
Medicare Part D claims · 492 beneficiaries · Physician Assistant avg: 790
Generic prescribing
86%
generic claims · 13% 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
Shelby Spazzarini, PA-C filed 4,650 Medicare Part D claims in 2023 as a Physician Assistant in Bristol, Connecticut, prescribing 86% generic.
- 5K
- Part D claims, 2023
- 86%
- generic prescribing
- ≥93rd
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Shelby Spazzarini, PA-C
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1093258865), first enumerated 11/28/2016.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 4,650 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1093258865 · Physician Assistant
NPI-10 · ENUM-MID · TAX-MEGA · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1093258865
- ENUM-MID 2016
- TAX-MEGA 151K Physician Assistant
- RX-MID 4,650
- BOOK-LIGHT 2,231 in Connecticut
- PHOTO-ENUM Bennie-John Milan · 2016
Shelby Spazzarini, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
4,650 ≥ 93rd percentile 93% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Shelby Spazzarini, PA-C?
Quality data not reportedPrimary specialty
Physician Assistant
Medicare Part D claims
4,650 6× vs specialty avg
Specialty distribution in Connecticut
How 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 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).
Practice Address
Provider Details
| NPI | 1093258865 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PA-C |
| Gender | Female |
| NPI Issued | 11/28/2016 |
Hospital and facility affiliations
Facilities where Shelby Spazzarini, 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.
Prohealth Physicians PC
Winsted, 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 · Typical
Shelby Spazzarini, PA-C - brand share 13.0%
Physician Assistant average
13% brand-name claims vs 86% generic, on 4,650 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.
4,650
Total Claims
$568K
Total Drug Cost
492
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 10,105
- Total Day Supply
- 289,101
- Brand vs Generic
- 13% brand / 86% generic
- Brand Drug Cost
- $473K
- Generic Drug Cost
- $92K
- Opioid Claims
- 131 (2.8% rate)
- Antibiotic Claims
- 128
Patient Demographics
- Average Patient Age
- 71.7 years
- Avg HCC Risk Score
- 1.62
- Gender Split
- 77% female / 23% male
- Age Distribution
- <65: 64, 65-74: 248, 75-84: 135, 85+: 45
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Shelby Spazzarini, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
272 claims
- Levothyroxine Sodium
Levothyroxine Sodium
265 claims
- Lisinopril
Lisinopril
163 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
160 claims
- Amlodipine Besylate
Amlodipine Besylate
159 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
120 claims
- Metoprolol Succinate 102
Metoprolol Succinate
102 claims
- Fluticasone Propio… 91
Fluticasone Propionate
91 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 272 |
| Levothyroxine Sodium | 265 |
| Lisinopril | 163 |
| Rosuvastatin Calcium | 160 |
| Amlodipine Besylate | 159 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 120 |
| Metoprolol Succinate | 102 |
| Fluticasone Propionate | 91 |
| Omeprazole | 85 |
| Pantoprazole Sodium | 82 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Shelby Spazzarini, 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
Shelby Spazzarini, PA-C's 4,650 claims are above the specialty average of 790.
Nationwide Physician Assistant peers with similar MIPS or enrollment year
Two federal-record peer sets for Spazzarini, both outside Connecticut so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2016)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Physician Assistant Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Spazzarini.
One of 2,231 Physician Assistant providers enrolled in Connecticut, 5 are shown here.
Gazang Abdulla
PA-C
Hartford, CT
Jill Aboulian
PA-C
Cheshire, CT
Celin Abraham
PA-C
Waterbury, CT
Louisa Acca
PA-C
Hartford, CT
Julia Accorsini
PA-C
New Haven, CT
Compare Physician Assistant nationally: see state-by-state distribution →
Frequently Asked Questions
What is Shelby Spazzarini, PA-C's specialty? ▼
Shelby Spazzarini, PA-C specializes in Physician Assistant and practices in Bristol, Connecticut. Credentials: PA-C.
How much does Shelby Spazzarini, PA-C prescribe under Medicare Part D? ▼
In 2023, Shelby Spazzarini, PA-C wrote 4,650 Medicare Part D claims totaling $568K in drug costs for 492 beneficiaries.
Where is Shelby Spazzarini, PA-C located? ▼
Shelby Spazzarini, PA-C is located at 25 COLLINS RD, Bristol, CT, 06010. Phone: (860) 589-8882.
What is Shelby Spazzarini, PA-C's NPI number? ▼
Shelby Spazzarini, PA-C's National Provider Identifier (NPI) is 1093258865, issued on 11/28/2016.
Does Shelby Spazzarini, PA-C prescribe more brand-name or generic drugs? ▼
Shelby Spazzarini, PA-C's prescribing is 13% brand-name and 86% generic drugs by claim count, with $473K in brand drug costs.
Does Shelby Spazzarini, PA-C prescribe opioids? ▼
Yes, Shelby Spazzarini, PA-C had 131 opioid claims in 2023 with an opioid prescribing rate of 2.8%.
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 Shelby Spazzarini, PA-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Shelby Spazzarini, PA-C's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Shelby Spazzarini, PA-C accept Medicare? ▼
Shelby Spazzarini, PA-C appears in CMS Medicare data with 4,650 Part D claims and 492 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Shelby Spazzarini, PA-C's credentials? ▼
Shelby Spazzarini, PA-C's NPI is 1093258865 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.