2026 NPPES data Physician Assistant NPI 1689626418 PA-C
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MICHAEL AHERN, PA-C

Physician Assistant in BELMONT, Michigan. 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
3K
Medicare Part D claims · 325 beneficiaries · Physician Assistant avg: 790
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: MICHAEL AHERN, PA-C is a Physician Assistant ([object Object]) practicing in BELMONT, Michigan with a Medicare Part D prescribing footprint of 3K claims across 325 beneficiaries — 10% brand-name prescribing .

What stands out: MICHAEL AHERN, PA-C filed 2,625 Medicare Part D claims in 2023 across BELMONT, Michigan. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

MICHAEL AHERN, PA-C at a glance

Quality data not reported

NPI registry status

Active

Issued 05/17/2006

NPI 1689626418

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

2,625 232% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Michigan

How Physician Assistant compares to other specialties among Michigan providers

Michigan providers

Physician Assistant share within Michigan

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

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).

MICHAEL AHERN, PA-C is a Physician Assistant provider practicing in BELMONT, Michigan, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA-C. NPI: 1689626418. 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 AHERN, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 6290 JUPITER AVE NE, BELMONT, MI, 49306, with a listed phone of (616) 301-2500. NPI 1689626418 was issued on 05/17/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AHERN 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 2,625 prescription claims written by this provider, covering 325 Medicare beneficiaries and totaling roughly $248K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 2.5%. 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

6290 JUPITER AVE NE
BELMONT, MI 49306

Provider Details

NPI 1689626418
Specialty Physician Assistant
Credentials PA-C
Gender Male
NPI Issued 05/17/2006

Hospital and facility affiliations

Facilities where MICHAEL AHERN, PA-C 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.

A PLUS MEDICAL ASSOCIATES PLLC
GRAND RAPIDS, MI

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 — they are NOT specific to MICHAEL AHERN, PA-C. To verify MICHAEL AHERN, PA-C's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM 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 Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

MICHAEL AHERN, PA-C — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 2,625 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.

2,625
Total Claims
$248K
Total Drug Cost
325
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,577
Total Day Supply
192,143
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$185K
Generic Drug Cost
$62K
Opioid Claims
66 (2.5% rate)
Antibiotic Claims
101

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
0.85
Gender Split
54% female / 46% male
Age Distribution
<65: 17, 65-74: 211, 75-84: 84, 85+: 13

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
159
Lisinopril
149
Omeprazole
120
Levothyroxine Sodium
97
Hydrochlorothiazide
86
Metoprolol Succinate
80
Metformin Hcl
78
Amlodipine Besylate
76
Losartan Potassium
72
Rosuvastatin Calcium
69

* 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 AHERN, PA-C 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 AHERN, PA-C's 2,625 claims are above the specialty average of 790.

Nearby Physician Assistant Providers in Michigan

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

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

Frequently Asked Questions

What is MICHAEL AHERN, PA-C's specialty?
MICHAEL AHERN, PA-C specializes in Physician Assistant and practices in BELMONT, Michigan. Credentials: PA-C.
How much does MICHAEL AHERN, PA-C prescribe under Medicare Part D?
In 2023, MICHAEL AHERN, PA-C wrote 2,625 Medicare Part D claims totaling $248K in drug costs for 325 beneficiaries.
Where is MICHAEL AHERN, PA-C located?
MICHAEL AHERN, PA-C is located at 6290 JUPITER AVE NE, BELMONT, MI, 49306. Phone: (616) 301-2500.
What is MICHAEL AHERN, PA-C's NPI number?
MICHAEL AHERN, PA-C's National Provider Identifier (NPI) is 1689626418, issued on 05/17/2006.
Does MICHAEL AHERN, PA-C prescribe more brand-name or generic drugs?
MICHAEL AHERN, PA-C's prescribing is 10% brand-name and 90% generic drugs by claim count, with $185K in brand drug costs.
Does MICHAEL AHERN, PA-C prescribe opioids?
Yes, MICHAEL AHERN, PA-C had 66 opioid claims in 2023 with an opioid prescribing rate of 2.5%.
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 AHERN, PA-C prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL AHERN, PA-C's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL AHERN, PA-C accept Medicare?
MICHAEL AHERN, PA-C appears in CMS Medicare data with 2,625 Part D claims and 325 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL AHERN, PA-C's credentials?
MICHAEL AHERN, PA-C's NPI is 1689626418 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