NPI registry status
Active
2026 NPPES data Surgical Physician Assistant NPI 1548301401 PA-C
Verify on CMS → Caroline Horwath, PA-C
Surgical Physician Assistant in Baltimore, Maryland.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,119 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
60
Medicare Part D claims · 15 beneficiaries · Surgical Physician Assistant avg: 316
Generic prescribing
77%
generic claims · 23% 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
Caroline Horwath, PA-C filed 60 Medicare Part D claims in 2023 as a Surgical Physician Assistant in Baltimore, Maryland, prescribing 77% generic.
- 60
- Part D claims, 2023
- 77%
- 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.
Caroline Horwath, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
60 0th percentile higher than 0% 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 Caroline Horwath, PA-C?
Quality data not reportedPrimary specialty
Surgical Physician Assistant
Medicare Part D claims
60 81% vs specialty avg
Specialty distribution in Maryland
How Surgical Physician Assistant compares to other specialties among Maryland 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).
Caroline Horwath, PA-C appears in the CMS NPPES registry as a Surgical Physician Assistant provider holding PA-C credentials at 600 N WOLFE ST # 618, Baltimore, MD, 21287, with a listed phone of (410) 283-9688. NPI 1548301401 was issued on 02/12/2007.
Medicare Part D records for calendar year 2023 show 60 prescription claims written by this provider, covering 15 Medicare beneficiaries and totaling roughly $7K in drug spend, split 23% brand-name and 77% generic by claim count.
Surgical Physician Assistant is a mid-sized specialty nationwide, with 16,119 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 | 1548301401 |
|---|---|
| Specialty | Surgical Physician Assistant |
| Credentials | PA-C |
| Gender | Female |
| NPI Issued | 02/12/2007 |
Brand vs generic prescribing mix · Typical
Caroline Horwath, PA-C - brand share 23.0%
Surgical Physician Assistant average
23% brand-name claims vs 77% generic, on 60 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.
60
Total Claims
$7K
Total Drug Cost
15
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 64
- Total Day Supply
- 1,574
- Brand vs Generic
- 23% brand / 77% generic
- Brand Drug Cost
- $7K
- Generic Drug Cost
- $324
Patient Demographics
- Average Patient Age
- 68.7 years
- Avg HCC Risk Score
- 0.76
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Metoprolol Succinate | 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 Caroline Horwath, PA-C fits within the Surgical Physician Assistant landscape nationally.
16,119
Surgical Physician Assistant Providers in US
54
States with Surgical Physician Assistant
316
Avg Claims per Provider
Caroline Horwath, PA-C's 60 claims are below the specialty average of 316.
Nearby Surgical Physician Assistant Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Horwath.
Dr. Jared Abay
PA-C
Baltimore, MD
Dr. Rommie Abele
PA
Frederick, MD
Dr. Jean Abeyta
PA-C
Bowie, MD
Dr. George Acevedo
P. A.
Silver Spring, MD
Dr. Danielle Adesman
PA-C
Chevy Chase, MD
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 Maryland 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.
Healthcare Guides
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How to Find a Doctor
Step-by-step guide to choosing a provider
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Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Maryland
Frequently Asked Questions
What is Caroline Horwath, PA-C's specialty? ▼
Caroline Horwath, PA-C specializes in Surgical Physician Assistant and practices in Baltimore, Maryland. Credentials: PA-C.
How much does Caroline Horwath, PA-C prescribe under Medicare Part D? ▼
In 2023, Caroline Horwath, PA-C wrote 60 Medicare Part D claims totaling $7K in drug costs for 15 beneficiaries.
Where is Caroline Horwath, PA-C located? ▼
Caroline Horwath, PA-C is located at 600 N WOLFE ST # 618, Baltimore, MD, 21287. Phone: (410) 283-9688.
What is Caroline Horwath, PA-C's NPI number? ▼
Caroline Horwath, PA-C's National Provider Identifier (NPI) is 1548301401, issued on 02/12/2007.
Does Caroline Horwath, PA-C prescribe more brand-name or generic drugs? ▼
Caroline Horwath, PA-C's prescribing is 23% brand-name and 77% generic drugs by claim count, with $7K in brand drug costs.
How many Surgical Physician Assistant providers are there in the US? ▼
There are 16,119 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 Caroline Horwath, PA-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Caroline Horwath, PA-C's most frequently prescribed drugs include Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Caroline Horwath, PA-C accept Medicare? ▼
Caroline Horwath, PA-C appears in CMS Medicare data with 60 Part D claims and 15 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Caroline Horwath, PA-C's credentials? ▼
Caroline Horwath, PA-C's NPI is 1548301401 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.