2026 NPPES data Physician Assistant NPI 1194770008 P.A.
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Jill Wiergowski, P.A.

Physician Assistant in Howell, Michigan. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 149,975 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
162
Medicare Part D claims · 123 beneficiaries · Physician Assistant avg: 790
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Jill Wiergowski, P.A. filed 162 Medicare Part D claims in 2023 as a Physician Assistant in Howell, Michigan.

162
Part D claims, 2023

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.

Jill Wiergowski, P.A.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

162 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about Jill Wiergowski, P.A.?

Quality data not reported

NPI registry status

Active

Issued 05/23/2006

NPI 1194770008

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

162 79% 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

Largest specialties in Michigan (% of in-state providers)

Behavior Technician — 21.4%Behavior Technician21.4%Clinical Social Worker — 5.8%Clinical Social Worker5.8%Student in an Organized Health Care Education/Training Program — 3.6%Student in an Organized Health Care Education/Training Program3.6%Physical Therapist — 3.4%Physical Therapist3.4%Social Worker — 3.4%Social Worker3.4%Pharmacist — 3%Pharmacist3%Physician Assistant — 2.3%Physician Assistant2.3%
Largest specialties in Michigan (% of in-state providers)

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).

Jill Wiergowski, P.A. appears in the CMS NPPES registry as a Physician Assistant provider holding P.A. credentials at 620 BYRON RD, Howell, MI, 48843, with a listed phone of (517) 545-5318. NPI 1194770008 was issued on 05/23/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Wiergowski 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 162 prescription claims written by this provider, covering 123 Medicare beneficiaries and totaling roughly $1K in drug spend, with an opioid prescribing rate of 14.8%. 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

620 BYRON RD
Howell, MI 48843

Provider Details

NPI 1194770008
Specialty Physician Assistant
Credentials P.A.
Gender Female
NPI Issued 05/23/2006

Hospital and facility affiliations

Facilities where Jill Wiergowski, P.A. 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.

Epmg OF Michigan PC
Howell, MI
Saint Joseph Mercy Livingston Hospital
Howell, 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 Jill Wiergowski, P.A.. To verify Jill Wiergowski, P.A.'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.

Medicare Part D Prescribing Data

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

162
Total Claims
$1K
Total Drug Cost
123
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
162
Total Day Supply
1,392
Generic Drug Cost
$1K
Opioid Claims
24 (14.8% rate)
Antibiotic Claims
49

Patient Demographics

Average Patient Age
72.4 years
Avg HCC Risk Score
1.48
Gender Split
57% female / 43% male
Age Distribution
<65: 20, 65-74: 42, 75-84: 45, 85+: 16

Top Prescribed Drugs (Medicare Part D)

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

What Jill Wiergowski, P.A. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Prednisone
15
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
14
Cephalexin
13

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

Physician Assistant Overview

How Jill Wiergowski, P.A. fits within the Physician Assistant landscape nationally.

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

Jill Wiergowski, P.A.'s 162 claims are below 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 Wiergowski.

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Michigan medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Physician Assistant peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Jill Wiergowski, P.A.'s specialty?
Jill Wiergowski, P.A. specializes in Physician Assistant and practices in Howell, Michigan. Credentials: P.A..
How much does Jill Wiergowski, P.A. prescribe under Medicare Part D?
In 2023, Jill Wiergowski, P.A. wrote 162 Medicare Part D claims totaling $1K in drug costs for 123 beneficiaries.
Where is Jill Wiergowski, P.A. located?
Jill Wiergowski, P.A. is located at 620 BYRON RD, Howell, MI, 48843. Phone: (517) 545-5318.
What is Jill Wiergowski, P.A.'s NPI number?
Jill Wiergowski, P.A.'s National Provider Identifier (NPI) is 1194770008, issued on 05/23/2006.
Does Jill Wiergowski, P.A. prescribe opioids?
Yes, Jill Wiergowski, P.A. had 24 opioid claims in 2023 with an opioid prescribing rate of 14.8%.
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 Jill Wiergowski, P.A. prescribe most often?
Based on 2023 Medicare Part D data, Jill Wiergowski, P.A.'s most frequently prescribed drugs include Prednisone, Hydrocodone-Acetaminophen, Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jill Wiergowski, P.A. accept Medicare?
Jill Wiergowski, P.A. appears in CMS Medicare data with 162 Part D claims and 123 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Jill Wiergowski, P.A.'s credentials?
Jill Wiergowski, P.A.'s NPI is 1194770008 with credentials P.A.. 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

Compiled from official public sources by the PlainDoctor editorial team.