2026 NPPES data Physician Assistant NPI 1952037178 PHYSICIAN ASSISTANT
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JOSEPH ARMSTRONG, PHYSICIAN ASSISTANT

Physician Assistant in STUART, Florida. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
430
Medicare Part D claims · 142 beneficiaries · Physician Assistant avg: 790
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.8K
134 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: JOSEPH ARMSTRONG, PHYSICIAN ASSISTANT is a Physician Assistant ([object Object]) practicing in STUART, Florida with a Medicare Part D prescribing footprint of 430 claims across 142 beneficiaries — 8% brand-name prescribing . Industry payments of $2.8K across 134 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: JOSEPH ARMSTRONG, PHYSICIAN ASSISTANT filed 430 Medicare Part D claims in 2023 across STUART, Florida. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

JOSEPH ARMSTRONG, PHYSICIAN ASSISTANT at a glance

Quality data not reported

NPI registry status

Active

Issued 07/29/2022

NPI 1952037178

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

430 46% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Florida

How Physician Assistant compares to other specialties among Florida providers

Florida providers

Physician Assistant share within Florida

1. Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physician Assistant share within Florida

Specialty board-certification context

Estimated specialty board-certified rate — Physician Assistant (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Physician Assistant ABMS/AOA estimate

Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Physician Assistant) — ABMS / AOA estimate

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).

JOSEPH ARMSTRONG, PHYSICIAN ASSISTANT is a Physician Assistant provider practicing in STUART, Florida, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PHYSICIAN ASSISTANT. NPI: 1952037178. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

JOSEPH ARMSTRONG, PHYSICIAN ASSISTANT appears in the CMS NPPES registry as a Physician Assistant provider holding PHYSICIAN ASSISTANT credentials at 433 SE OCEAN BLVD, STUART, FL, 34994, with a listed phone of (772) 276-7242. NPI 1952037178 was issued on 07/29/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ARMSTRONG most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 430 prescription claims written by this provider, covering 142 Medicare beneficiaries and totaling roughly $28K in drug spend, split 8% brand-name and 92% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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

433 SE OCEAN BLVD
STUART, FL 34994

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 · Generic-heavy

JOSEPH ARMSTRONG, PHYSICIAN ASSISTANT — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 430 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.

430
Total Claims
$28K
Total Drug Cost
142
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
532
Total Day Supply
10,093
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$23K
Generic Drug Cost
$5K
Antibiotic Claims
28

Patient Demographics

Average Patient Age
75.0 years
Avg HCC Risk Score
2.19
Gender Split
42% female / 58% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Potassium Chloride
87
Prochlorperazine Maleate
44
Ondansetron Hcl
43
Dexamethasone
31
Mirtazapine
24
Prednisone
17
Levothyroxine Sodium
14
Famotidine
13
Lidocaine-Prilocaine
Lidocaine/Prilocaine
12
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
12

* 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.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

JOSEPH ARMSTRONG, PHYSICIAN ASSISTANT's 430 claims are below the specialty average of 790.

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.

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 2023, JOSEPH ARMSTRONG, PHYSICIAN ASSISTANT wrote 430 Medicare Part D claims totaling $28K in drug costs for 142 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 8% brand-name and 92% generic drugs by claim count, with $23K in brand drug costs.
How many Physician Assistant providers are there in the US?
There are 149,975 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 JOSEPH ARMSTRONG, PHYSICIAN ASSISTANT prescribe most often?
Based on 2023 Medicare Part D data, JOSEPH ARMSTRONG, PHYSICIAN ASSISTANT's most frequently prescribed drugs include Potassium Chloride, Prochlorperazine Maleate, Ondansetron Hcl. 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 430 Part D claims and 142 Medicare beneficiaries in 2023. 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

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