2026 NPPES data Physician Assistant NPI 1083082986 PA
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MICHAEL ASAY, PA

Physician Assistant in BILLINGS, Montana. 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
158
Medicare Part D claims · 125 beneficiaries · Physician Assistant avg: 790
Generic prescribing
52%
generic claims · 48% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
57.7228/100
▼ 25 pts below national avg 83.1 · [object Object]
Industry payments
$398.48
2 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MICHAEL ASAY, PA is a Physician Assistant ([object Object]) practicing in BILLINGS, Montana with a Medicare Part D prescribing footprint of 158 claims across 125 beneficiaries — 48% brand-name prescribing . Their CMS MIPS Final Score of 57.7228/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $398.48 across 2 transactions are disclosed under CMS Open Payments (Sunshine Act).

What the federal data shows

MICHAEL ASAY, PA reported a CMS MIPS final score of 57.7228/100 — below the 83.1 national average — and filed 158 Medicare Part D claims in 2023.

57.7228/100
MIPS score · -25 vs avg
158
Part D claims, 2023
52%
generic prescribing
$398.48
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.

MICHAEL ASAY, PA's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

58 5th percentile higher than 5% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). This entry sits in this band. 60–70: 13,906 scored providers (3%). Above this entry. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored 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.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

MICHAEL ASAY, PA at a glance

Below national average

NPI registry status

Active

Issued 09/09/2015

NPI 1083082986

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

158 80% vs specialty avg

2023 prescription claims

Specialty avg: 790

MIPS final score

57.7228/100 25.377199999999995% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in Montana

How Physician Assistant compares to other specialties among Montana providers

Montana providers

Physician Assistant share within Montana

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

Medicare quality performance — MIPS

MICHAEL ASAY, PA's 2023 MIPS final score plotted against the Physician Assistant national average

Below national average
MIPS Final Score
57.7228/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Physician Assistant) — 57.7228/100 vs national avg 83.1

0%100%National avg83%57.7%
MIPS final score (Physician Assistant) — 57.7228/100 vs national avg 83.1

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).

MICHAEL ASAY, PA is a Physician Assistant provider practicing in BILLINGS, Montana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA. NPI: 1083082986. 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.

MICHAEL ASAY, PA appears in the CMS NPPES registry as a Physician Assistant provider holding PA credentials at 1144 N BROADWAY, BILLINGS, MT, 59101, with a listed phone of (406) 238-6380. NPI 1083082986 was issued on 09/09/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ASAY 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 158 prescription claims written by this provider, covering 125 Medicare beneficiaries and totaling roughly $22K in drug spend, split 48% brand-name and 52% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 57.7228/100 for the 2023 performance year (Quality 50.4052), compared with the national average of 83.1.

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

1144 N BROADWAY
BILLINGS, MT 59101

Provider Details

NPI 1083082986
Specialty Physician Assistant
Credentials PA
Gender Male
NPI Issued 09/09/2015

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

57.7228
Final Score
Avg: 83.1
50.4052
Quality
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MICHAEL ASAY, PA 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.

NORTH BIG HORN HOSPITAL DISTRICT
★★★★☆ 4/5
LOVELL, WY
Critical Access Hospitals
CMS CCN: 531309

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 MICHAEL ASAY, PA. Source: openpaymentsdata.cms.gov.

Total received

$398

Largest payer

INTUITIVE SURGICAL, 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.

Brand vs generic prescribing mix · Above average

MICHAEL ASAY, PA — brand share 48.0%
Specialty average (est.)

48% brand-name claims vs 52% generic, on 158 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.

158
Total Claims
$22K
Total Drug Cost
125
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
162
Total Day Supply
1,503
Brand vs Generic
48% brand / 52% generic
Brand Drug Cost
$21K
Generic Drug Cost
$927
Antibiotic Claims
35

Patient Demographics

Average Patient Age
74.0 years
Avg HCC Risk Score
1.09
Gender Split
62% female / 38% male
Age Distribution
<65: 13, 65-74: 50, 75-84: 44, 85+: 18

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Shingrix
Varicella-Zoster Ge/As01b/Pf
17
Methylprednisolone
11
Abrysvo
"Rsv Vacc
N/A

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Physician Assistant Overview

How MICHAEL ASAY, PA fits within the Physician Assistant landscape nationally.

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

MICHAEL ASAY, PA's 158 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Montana

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

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

Frequently Asked Questions

What is MICHAEL ASAY, PA's specialty?
MICHAEL ASAY, PA specializes in Physician Assistant and practices in BILLINGS, Montana. Credentials: PA.
How much does MICHAEL ASAY, PA prescribe under Medicare Part D?
In 2023, MICHAEL ASAY, PA wrote 158 Medicare Part D claims totaling $22K in drug costs for 125 beneficiaries.
What is MICHAEL ASAY, PA's Medicare quality score?
MICHAEL ASAY, PA has a CMS MIPS Final Score of 57.7228/100 (Quality: 50.4052). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MICHAEL ASAY, PA located?
MICHAEL ASAY, PA is located at 1144 N BROADWAY, BILLINGS, MT, 59101. Phone: (406) 238-6380.
What is MICHAEL ASAY, PA's NPI number?
MICHAEL ASAY, PA's National Provider Identifier (NPI) is 1083082986, issued on 09/09/2015.
Does MICHAEL ASAY, PA prescribe more brand-name or generic drugs?
MICHAEL ASAY, PA's prescribing is 48% brand-name and 52% generic drugs by claim count, with $21K 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 MICHAEL ASAY, PA prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL ASAY, PA's most frequently prescribed drugs include Shingrix, Methylprednisolone, Abrysvo. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL ASAY, PA accept Medicare?
MICHAEL ASAY, PA appears in CMS Medicare data with 158 Part D claims and 125 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL ASAY, PA's credentials?
MICHAEL ASAY, PA's NPI is 1083082986 with credentials PA. 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.
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 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