NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1952037178 PHYSICIAN ASSISTANT
Verify on CMS → Joseph Armstrong, PHYSICIAN ASSISTANT
Physician Assistant in Stuart, Florida.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 156,084 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
494
Medicare Part D claims · 151 beneficiaries · Physician Assistant avg: 832
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.8K
134 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Joseph Armstrong, PHYSICIAN ASSISTANT filed 494 Medicare Part D claims in 2024 as a Physician Assistant in Stuart, Florida, prescribing 86% generic.
- 494
- Part D claims, 2024
- 86%
- generic prescribing
- $2.8K
- industry payments (Sunshine Act)
- ≥61st
- 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 Joseph Armstrong, PHYSICIAN ASSISTANT
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 1952037178), first enumerated 07/29/2022.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 494 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
- Reported
Industry payment transparency
$2.8K in reported industry payments (134 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
Florida statewide board action statistics are published annually — these figures describe aggregate state activity, not Joseph Armstrong, PHYSICIAN ASSISTANT's individual license status. Verify directly with the state medical board.
Source: FLDOH 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 1952037178 · Physician Assistant
NPI-10 · ENUM-RECENT · TAX-MEGA · RX-LIGHT · BOOK-MID · PHOTO-ENUM
- NPI-10 1952037178
- ENUM-RECENT 2022
- TAX-MEGA 156K Physician Assistant
- RX-LIGHT 494
- BOOK-MID 9,809 in Florida
- PHOTO-ENUM Natalie Trautwein · 2022
Joseph Armstrong, PHYSICIAN ASSISTANT's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
494 ≥ 61st percentile 61% of 1,416,883 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 · 2024
What does the federal data show about Joseph Armstrong, PHYSICIAN ASSISTANT?
Quality data not reportedPrimary specialty
Physician Assistant
Medicare Part D claims
494 41% vs specialty avg
Specialty distribution in Florida
How Physician Assistant compares to other specialties among Florida 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 | 1952037178 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PHYSICIAN ASSISTANT |
| Gender | Male |
| NPI Issued | 07/29/2022 |
Hospital and facility affiliations
Facilities where Joseph Armstrong, PHYSICIAN ASSISTANT 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.
Stuart Oncology Associates PA
Port St Lucie, FL
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 Joseph Armstrong, PHYSICIAN ASSISTANT. Source: openpaymentsdata.cms.gov.
Total received
$2.8K
Largest payer
ABBVIE INC.
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 - Florida FLDOH 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 ~75K Florida medical licensees in 2023 - they are NOT specific to Joseph Armstrong, PHYSICIAN ASSISTANT. To verify Joseph Armstrong, PHYSICIAN ASSISTANT's current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases
FLDOH 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 Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Joseph Armstrong, PHYSICIAN ASSISTANT - brand share 14.0%
Physician Assistant average
14% brand-name claims vs 86% generic, on 494 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.
494
Total Claims
$45K
Total Drug Cost
151
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 697.5
- Total Day Supply
- 16,750
- Brand vs Generic
- 14% brand / 86% generic
- Brand Drug Cost
- $39K
- Generic Drug Cost
- $7K
- Antibiotic Claims
- 25
Patient Demographics
- Average Patient Age
- 75.1 years
- Avg HCC Risk Score
- 2.59
- Gender Split
- 45% female / 55% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Joseph Armstrong, PHYSICIAN ASSISTANT prescribes most
Top Medicare Part D drugs by claim count, 2024
- Potassium Chloride
Potassium Chloride
81 claims
- Ondansetron Hcl 29
Ondansetron Hcl
29 claims
- Mirtazapine 28
Mirtazapine
28 claims
- Prochlorperazine M… 27
Prochlorperazine Maleate
27 claims
- Xarelto 26
Xarelto
26 claims
- Acyclovir 23
Acyclovir
23 claims
- Hydroxyurea 23
Hydroxyurea
23 claims
- Eliquis 19
Eliquis
19 claims
| Drug | Claims |
|---|---|
| Potassium Chloride | 81 |
| Ondansetron Hcl | 29 |
| Mirtazapine | 28 |
| Prochlorperazine Maleate | 27 |
| Xarelto Rivaroxaban | 26 |
| Acyclovir | 23 |
| Hydroxyurea | 23 |
| Eliquis Apixaban | 19 |
| Levothyroxine Sodium | 19 |
| Triamcinolone Acetonide | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Joseph Armstrong, PHYSICIAN ASSISTANT fits within the Physician Assistant landscape nationally.
156,084
Physician Assistant Providers in US
56
States with Physician Assistant
832
Avg Claims per Provider
Joseph Armstrong, PHYSICIAN ASSISTANT's 494 claims are below the specialty average of 832.
Nationwide Physician Assistant peers with similar MIPS or enrollment year
Two federal-record peer sets for Armstrong, both outside Florida so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2022)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Physician Assistant Providers in Florida
Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as Armstrong.
One of 9,809 Physician Assistant providers enrolled in Florida, 5 are shown here.
Kiersten Aaberg
Pensacola, FL
Timothy Aamland
PA-C
Gainesville, FL
Cathy Aaron
PA-C
Pensacola, FL
Joseph Abadiotakis
Gainesville, FL
Monica Abare
PA-C
Orlando, FL
Compare Physician Assistant nationally: see state-by-state distribution →
Frequently Asked Questions
What is Joseph Armstrong, PHYSICIAN ASSISTANT's specialty? ▼
Joseph Armstrong, PHYSICIAN ASSISTANT specializes in Physician Assistant and practices in Stuart, Florida. Credentials: PHYSICIAN ASSISTANT.
How much does Joseph Armstrong, PHYSICIAN ASSISTANT prescribe under Medicare Part D? ▼
In 2024, Joseph Armstrong, PHYSICIAN ASSISTANT wrote 494 Medicare Part D claims totaling $45K in drug costs for 151 beneficiaries.
Where is Joseph Armstrong, PHYSICIAN ASSISTANT located? ▼
Joseph Armstrong, PHYSICIAN ASSISTANT is located at 433 SE OCEAN BLVD, Stuart, FL, 34994. Phone: (772) 276-7242.
What is Joseph Armstrong, PHYSICIAN ASSISTANT's NPI number? ▼
Joseph Armstrong, PHYSICIAN ASSISTANT's National Provider Identifier (NPI) is 1952037178, issued on 07/29/2022.
Does Joseph Armstrong, PHYSICIAN ASSISTANT prescribe more brand-name or generic drugs? ▼
Joseph Armstrong, PHYSICIAN ASSISTANT's prescribing is 14% brand-name and 86% generic drugs by claim count, with $39K in brand drug costs.
How many Physician Assistant providers are there in the US? ▼
There are 156,084 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 832 Medicare Part D claims per year.
What drugs does Joseph Armstrong, PHYSICIAN ASSISTANT prescribe most often? ▼
Based on 2024 Medicare Part D data, Joseph Armstrong, PHYSICIAN ASSISTANT's most frequently prescribed drugs include Potassium Chloride, Ondansetron Hcl, Mirtazapine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Joseph Armstrong, PHYSICIAN ASSISTANT accept Medicare? ▼
Joseph Armstrong, PHYSICIAN ASSISTANT appears in CMS Medicare data with 494 Part D claims and 151 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Joseph Armstrong, PHYSICIAN ASSISTANT's credentials? ▼
Joseph Armstrong, PHYSICIAN ASSISTANT's NPI is 1952037178 with credentials PHYSICIAN ASSISTANT. 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.
- 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.