NPI registry status
Active
2026 NPPES data Surgical Physician Assistant NPI 1598240970 PA-C
Verify on CMS → Catherine Siegfried, PA-C
Surgical Physician Assistant in Monroeville, Pennsylvania.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,380 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
500
Medicare Part D claims · 87 beneficiaries · Surgical Physician Assistant avg: 341
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
93.8/100
▲ 10 pts above national avg 83.5 · Exceptional
Industry payments
$1.6K
20 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Catherine Siegfried, PA-C reported a CMS MIPS final score of 93.8/100 - above the 83.5 national average - and filed 500 Medicare Part D claims in 2024.
- 93.8/100
- MIPS score · +10 vs avg
- 500
- Part D claims, 2024
- 89%
- generic prescribing
- $1.6K
- industry payments (Sunshine Act)
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 Catherine Siegfried, PA-C
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1598240970), first enumerated 10/01/2018.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 500 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 93.8/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$1.6K in reported industry payments (20 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Pennsylvania statewide board action statistics are published annually — these figures describe aggregate state activity, not Catherine Siegfried, PA-C's individual license status. Verify directly with the state medical board.
Source: PA-BOM annual report 2023
- 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 1598240970 · Surgical Physician Assistant
NPI-10 · ENUM-RECENT · TAX-MID · MIPS-ELITE · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1598240970
- ENUM-RECENT 2018
- TAX-MID 16K Surgical Physician
- MIPS-ELITE 93.8/100
- RX-LIGHT 500
- BOOK-LIGHT 846 in Pennsylvania
- PHOTO-FINISH Zachary Jacobelli · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Stephanie Oberwe…
Stephanie Oberweger
93.7 MIPS pts
- Siegfried · this…
Siegfried · this provider
93.8 MIPS pts
- McCall Sims · hi…
McCall Sims
93.8 MIPS pts
- Zachary Jacobell…
Zachary Jacobelli
93.8 MIPS pts
- Abby Lamonde · n…
Abby Lamonde
93.8 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Catherine Siegfried, PA-C's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
94 ≥ 69th percentile 69% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Catherine Siegfried, PA-C sits
This provider among surgical physician assistant peers
Across the 3,657 surgical physician assistant providers who report both Medicare Part D prescribing and a MIPS quality score, Catherine Siegfried, PA-C writes more Part D claims than 85% of them and scores higher on MIPS quality than 75% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one surgical physician assistant peer from a representative sample of 60; the gold marker is Catherine Siegfried, 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 Siegfried, PA-C?
High performer (top quartile)Primary specialty
Surgical Physician Assistant
Medicare Part D claims
500 47% vs specialty avg
MIPS final score
93.8/100 10.3 pts vs avg
Specialty distribution in Pennsylvania
How Surgical Physician Assistant compares to other specialties among Pennsylvania providers
Medicare quality performance, MIPS
Catherine Siegfried, PA-C's 2023 MIPS final score plotted against the Surgical Physician Assistant national average
- MIPS Final Score
- 93.8/100
- vs 83.5 national avg · 2023 performance year
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 | 1598240970 |
|---|---|
| Specialty | Surgical Physician Assistant |
| Credentials | PA-C |
| Gender | Female |
| NPI Issued | 10/01/2018 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
93.7848
Final Score
Measured-score avg: 83.5
85.0781
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Catherine Siegfried, 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.
Allegheny Clinic
Wexford, PA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Catherine Siegfried, PA-C. Source: openpaymentsdata.cms.gov.
Total received
$1.6K
Largest payer
Abbott Laboratories
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - Pennsylvania PA-BOM 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~45K Pennsylvania medical licensees in 2023 - they are NOT specific to Catherine Siegfried, PA-C. To verify Catherine Siegfried, PA-C's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases
PA-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Catherine Siegfried, PA-C - brand share 11.0%
Surgical Physician Assistant average
11% brand-name claims vs 89% generic, on 500 2024 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 2024.
500
Total Claims
$37K
Total Drug Cost
87
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 635.667
- Total Day Supply
- 17,771
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $31K
- Generic Drug Cost
- $7K
- Antibiotic Claims
- 38
Patient Demographics
- Average Patient Age
- 70.9 years
- Avg HCC Risk Score
- 3.72
- Gender Split
- 34% female / 66% male
- Age Distribution
- <65: 16, 65-74: 44, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Catherine Siegfried, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2024
- Metoprolol Succinate
Metoprolol Succinate
40 claims
- Bumetanide
Bumetanide
36 claims
- Carvedilol
Carvedilol
24 claims
- Hydralazine Hcl
Hydralazine Hcl
22 claims
- Potassium Chloride
Potassium Chloride
21 claims
- Entresto
Entresto
18 claims
- Clopidogrel
Clopidogrel
17 claims
- Eliquis
Eliquis
17 claims
| Drug | Claims |
|---|---|
| Metoprolol Succinate | 40 |
| Bumetanide | 36 |
| Carvedilol | 24 |
| Hydralazine Hcl | 22 |
| Potassium Chloride | 21 |
| Entresto Sacubitril/Valsartan | 18 |
| Clopidogrel Clopidogrel Bisulfate | 17 |
| Eliquis Apixaban | 17 |
| Amiodarone Hcl | 16 |
| Levothyroxine Sodium | 16 |
* 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 Catherine Siegfried, PA-C fits within the Surgical Physician Assistant landscape nationally.
16,380
Surgical Physician Assistant Providers in US
54
States with Surgical Physician Assistant
341
Avg Claims per Provider
Catherine Siegfried, PA-C's 500 claims are above the specialty average of 341.
Nationwide Surgical Physician Assistant peers with similar MIPS or enrollment year
Two federal-record peer sets for Siegfried, both outside Pennsylvania so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (93.8 here).
Same NPPES enumeration year (2018)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Surgical Physician Assistant Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Siegfried.
One of 846 Surgical Physician Assistant providers enrolled in Pennsylvania, 5 are shown here.
Alyssa Abebe
PA-C
Pittsburgh, PA
Ashley Abraham
Philadelphia, PA
Michelle Adams
PA-C
Danville, PA
David Adler
PA-C
Chester, PA
Samantha Aksu
PA-C
Hershey, PA
Compare Surgical Physician Assistant nationally: see state-by-state distribution →
Frequently Asked Questions
What is Catherine Siegfried, PA-C's specialty? ▼
Catherine Siegfried, PA-C specializes in Surgical Physician Assistant and practices in Monroeville, Pennsylvania. Credentials: PA-C.
How much does Catherine Siegfried, PA-C prescribe under Medicare Part D? ▼
In 2024, Catherine Siegfried, PA-C wrote 500 Medicare Part D claims totaling $37K in drug costs for 87 beneficiaries.
What is Catherine Siegfried, PA-C's Medicare quality score? ▼
Catherine Siegfried, PA-C has a CMS MIPS Final Score of 93.8/100 (Quality: 85.1). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Catherine Siegfried, PA-C located? ▼
Catherine Siegfried, PA-C is located at 2580 HAYMAKER RD STE 304, Monroeville, PA, 15146. Phone: (412) 858-3073.
What is Catherine Siegfried, PA-C's NPI number? ▼
Catherine Siegfried, PA-C's National Provider Identifier (NPI) is 1598240970, issued on 10/01/2018.
Does Catherine Siegfried, PA-C prescribe more brand-name or generic drugs? ▼
Catherine Siegfried, PA-C's prescribing is 11% brand-name and 89% generic drugs by claim count, with $31K in brand drug costs.
How many Surgical Physician Assistant providers are there in the US? ▼
There are 16,380 Surgical Physician Assistant providers across 54 states in the US. The average Surgical Physician Assistant provider writes 341 Medicare Part D claims per year.
What drugs does Catherine Siegfried, PA-C prescribe most often? ▼
Based on 2024 Medicare Part D data, Catherine Siegfried, PA-C's most frequently prescribed drugs include Metoprolol Succinate, Bumetanide, Carvedilol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Catherine Siegfried, PA-C accept Medicare? ▼
Catherine Siegfried, PA-C appears in CMS Medicare data with 500 Part D claims and 87 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Catherine Siegfried, PA-C's credentials? ▼
Catherine Siegfried, PA-C's NPI is 1598240970 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.