2026 NPPES data Physician Assistant NPI 1881642445 PA
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MICHAEL GROESCHEL, PA

Physician Assistant in MILWAUKEE, Wisconsin. 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
278
Medicare Part D claims · 199 beneficiaries · Physician Assistant avg: 790

What the federal data shows

MICHAEL GROESCHEL, PA filed 278 Medicare Part D claims in 2023 as a Physician Assistant in MILWAUKEE, Wisconsin.

278
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.

MICHAEL GROESCHEL, PA's Medicare Part D volume vs every U.S. prescriber

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

278 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 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 MICHAEL GROESCHEL, PA?

Quality data not reported

NPI registry status

Active

Issued 05/05/2006

NPI 1881642445

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

278 65% vs specialty avg

2023 prescription claims

Specialty avg: 790

Specialty distribution in Wisconsin

How Physician Assistant compares to other specialties among Wisconsin providers

Wisconsin providers

Physician Assistant share within Wisconsin

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

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 GROESCHEL, PA appears in the CMS NPPES registry as a Physician Assistant provider holding PA credentials at 2900 W OKLAHOMA AVE, MILWAUKEE, WI, 53215, with a listed phone of (414) 649-6588. NPI 1881642445 was issued on 05/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GROESCHEL 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 278 prescription claims written by this provider, covering 199 Medicare beneficiaries and totaling roughly $4K in drug spend, with an opioid prescribing rate of 27.3%. 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

2900 W OKLAHOMA AVE
MILWAUKEE, WI 53215

Provider Details

NPI 1881642445
Specialty Physician Assistant
Credentials PA
Gender Male
NPI Issued 05/05/2006

Medicare Part D Prescribing Data

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

278
Total Claims
$4K
Total Drug Cost
199
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
282
Total Day Supply
2,205
Generic Drug Cost
$2K
Opioid Claims
76 (27.3% rate)
Antibiotic Claims
66

Patient Demographics

Average Patient Age
64.3 years
Avg HCC Risk Score
1.87
Gender Split
59% female / 41% male
Age Distribution
<65: 85, 65-74: 67, 75-84: 35, 85+: 12

Top Prescribed Drugs (Medicare Part D)

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

What MICHAEL GROESCHEL, PA 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
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
44
Tizanidine Hcl
23
Ondansetron Odt
Ondansetron
20
Tramadol Hcl
20
Cephalexin
15
Prednisone
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 MICHAEL GROESCHEL, 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 GROESCHEL, PA's 278 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Wisconsin

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

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

Frequently Asked Questions

What is MICHAEL GROESCHEL, PA's specialty?
MICHAEL GROESCHEL, PA specializes in Physician Assistant and practices in MILWAUKEE, Wisconsin. Credentials: PA.
How much does MICHAEL GROESCHEL, PA prescribe under Medicare Part D?
In 2023, MICHAEL GROESCHEL, PA wrote 278 Medicare Part D claims totaling $4K in drug costs for 199 beneficiaries.
Where is MICHAEL GROESCHEL, PA located?
MICHAEL GROESCHEL, PA is located at 2900 W OKLAHOMA AVE, MILWAUKEE, WI, 53215. Phone: (414) 649-6588.
What is MICHAEL GROESCHEL, PA's NPI number?
MICHAEL GROESCHEL, PA's National Provider Identifier (NPI) is 1881642445, issued on 05/05/2006.
Does MICHAEL GROESCHEL, PA prescribe opioids?
Yes, MICHAEL GROESCHEL, PA had 76 opioid claims in 2023 with an opioid prescribing rate of 27.3%.
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 GROESCHEL, PA prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL GROESCHEL, PA's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Tizanidine Hcl, Ondansetron Odt. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL GROESCHEL, PA accept Medicare?
MICHAEL GROESCHEL, PA appears in CMS Medicare data with 278 Part D claims and 199 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL GROESCHEL, PA's credentials?
MICHAEL GROESCHEL, PA's NPI is 1881642445 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.
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