2026 NPPES data Psychiatry Physician NPI 1942246509 M.D.
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MITCHELL ILLICHMANN, M.D.

Psychiatry Physician in MADISON, 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
1K
Medicare Part D claims · 52 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MITCHELL ILLICHMANN, M.D. filed 1,159 Medicare Part D claims in 2023 as a Psychiatry Physician in MADISON, Wisconsin, prescribing 87% generic.

1K
Part D claims, 2023
87%
generic prescribing

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.

MITCHELL ILLICHMANN, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

1,159 Top 23% higher than 77% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). This entry sits in this band. 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

Board-eligible specialty (heuristic — not verified)

MITCHELL ILLICHMANN, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about MITCHELL ILLICHMANN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/21/2006

NPI 1942246509

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

1,159 12% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

Specialty distribution in Wisconsin

How Psychiatry Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Psychiatry Physician share within Wisconsin

1. Psychiatry Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatry Physician share within Wisconsin

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Psychiatry Physician) — 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).

MITCHELL ILLICHMANN, M.D. appears in the CMS NPPES registry as a Psychiatry Physician provider holding M.D. credentials at 600 HIGHLAND AVE, MADISON, WI, 53792, with a listed phone of (608) 265-8130. NPI 1942246509 was issued on 06/21/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ILLICHMANN 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 1,159 prescription claims written by this provider, covering 52 Medicare beneficiaries and totaling roughly $267K in drug spend, split 13% brand-name and 87% 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.

Psychiatry Physician is a high-volume specialty nationwide, with 53,104 enrolled providers across 56 states and an average of 1,038 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

600 HIGHLAND AVE
MADISON, WI 53792

Provider Details

NPI 1942246509
Specialty Psychiatry Physician
Credentials M.D.
Gender Male
NPI Issued 06/21/2006

Brand vs generic prescribing mix · Typical

MITCHELL ILLICHMANN, M.D. — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 1,159 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.

1,159
Total Claims
$267K
Total Drug Cost
52
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,408
Total Day Supply
40,742
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$222K
Generic Drug Cost
$45K

Patient Demographics

Average Patient Age
54.1 years
Avg HCC Risk Score
1.24
Gender Split
44% female / 56% male
Age Distribution
<65: 37, 65-74: 11, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What MITCHELL ILLICHMANN, M.D. 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
Clozapine
84
Clonazepam
83
Aripiprazole
64
Trazodone Hcl
63
Quetiapine Fumarate
60
Lorazepam
45
Bupropion Xl
Bupropion Hcl
43
Escitalopram Oxalate
43
Lithium Carbonate Er
Lithium Carbonate
39
Gabapentin
38

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

Psychiatry Physician Overview

How MITCHELL ILLICHMANN, M.D. fits within the Psychiatry Physician landscape nationally.

53,104
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider

MITCHELL ILLICHMANN, M.D.'s 1,159 claims are above the specialty average of 1,038.

Nearby Psychiatry Physician Providers in Wisconsin

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

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

Frequently Asked Questions

What is MITCHELL ILLICHMANN, M.D.'s specialty?
MITCHELL ILLICHMANN, M.D. specializes in Psychiatry Physician and practices in MADISON, Wisconsin. Credentials: M.D..
How much does MITCHELL ILLICHMANN, M.D. prescribe under Medicare Part D?
In 2023, MITCHELL ILLICHMANN, M.D. wrote 1,159 Medicare Part D claims totaling $267K in drug costs for 52 beneficiaries.
Where is MITCHELL ILLICHMANN, M.D. located?
MITCHELL ILLICHMANN, M.D. is located at 600 HIGHLAND AVE, MADISON, WI, 53792. Phone: (608) 265-8130.
What is MITCHELL ILLICHMANN, M.D.'s NPI number?
MITCHELL ILLICHMANN, M.D.'s National Provider Identifier (NPI) is 1942246509, issued on 06/21/2006.
Does MITCHELL ILLICHMANN, M.D. prescribe more brand-name or generic drugs?
MITCHELL ILLICHMANN, M.D.'s prescribing is 13% brand-name and 87% generic drugs by claim count, with $222K in brand drug costs.
How many Psychiatry Physician providers are there in the US?
There are 53,104 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
What drugs does MITCHELL ILLICHMANN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MITCHELL ILLICHMANN, M.D.'s most frequently prescribed drugs include Clozapine, Clonazepam, Aripiprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MITCHELL ILLICHMANN, M.D. accept Medicare?
MITCHELL ILLICHMANN, M.D. appears in CMS Medicare data with 1,159 Part D claims and 52 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MITCHELL ILLICHMANN, M.D.'s credentials?
MITCHELL ILLICHMANN, M.D.'s NPI is 1942246509 with credentials M.D.. 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