2026 NPPES data Medical Physician Assistant NPI 1447934161 PA-C
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ASPEN ARMSTRONG, PA-C

Medical Physician Assistant in MONTROSE, Colorado. 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
23
Medicare Part D claims · Medical Physician Assistant avg: 1K
Industry payments
$74.19
3 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ASPEN ARMSTRONG, PA-C is a Medical Physician Assistant ([object Object]) practicing in MONTROSE, Colorado with a Medicare Part D prescribing footprint of 23 claims . Industry payments of $74.19 across 3 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ASPEN ARMSTRONG, PA-C filed 23 Medicare Part D claims in 2023 across MONTROSE, Colorado. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

ASPEN ARMSTRONG, PA-C at a glance

Quality data not reported

NPI registry status

Active

Issued 06/13/2023

NPI 1447934161

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

23 98% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Colorado

How Medical Physician Assistant compares to other specialties among Colorado providers

Colorado providers

Medical Physician Assistant share within Colorado

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Medical 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).

ASPEN ARMSTRONG, PA-C is a Medical Physician Assistant provider practicing in MONTROSE, Colorado, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1447934161. 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.

ASPEN ARMSTRONG, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 401 S PARK AVE, MONTROSE, CO, 81401, with a listed phone of (970) 240-8199. NPI 1447934161 was issued on 06/13/2023. 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 23 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $338 in drug spend. 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.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 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

401 S PARK AVE
MONTROSE, CO 81401

Provider Details

NPI 1447934161
Specialty Medical Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 06/13/2023

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 ASPEN ARMSTRONG, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$74

Largest payer

Lilly USA, LLC

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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

23
Total Claims
$338
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
57
Total Day Supply
1,608
Generic Drug Cost
$328

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
1.02

Medical Physician Assistant Overview

How ASPEN ARMSTRONG, PA-C fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

ASPEN ARMSTRONG, PA-C's 23 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Colorado

Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as ARMSTRONG.

Compare Medical Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is ASPEN ARMSTRONG, PA-C's specialty?
ASPEN ARMSTRONG, PA-C specializes in Medical Physician Assistant and practices in MONTROSE, Colorado. Credentials: PA-C.
How much does ASPEN ARMSTRONG, PA-C prescribe under Medicare Part D?
In 2023, ASPEN ARMSTRONG, PA-C wrote 23 Medicare Part D claims totaling $338 in drug costs for N/A beneficiaries.
Where is ASPEN ARMSTRONG, PA-C located?
ASPEN ARMSTRONG, PA-C is located at 401 S PARK AVE, MONTROSE, CO, 81401. Phone: (970) 240-8199.
What is ASPEN ARMSTRONG, PA-C's NPI number?
ASPEN ARMSTRONG, PA-C's National Provider Identifier (NPI) is 1447934161, issued on 06/13/2023.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
Does ASPEN ARMSTRONG, PA-C accept Medicare?
ASPEN ARMSTRONG, PA-C appears in CMS Medicare data with 23 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ASPEN ARMSTRONG, PA-C's credentials?
ASPEN ARMSTRONG, PA-C's NPI is 1447934161 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

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