2026 NPPES data Child & Adolescent Psychiatry Physician NPI 1952315723 MD
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JOHN KORGER, MD

Child & Adolescent Psychiatry Physician in OSHKOSH, 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
997
Medicare Part D claims · 30 beneficiaries · Child & Adolescent Psychiatry Physician avg: 600
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: JOHN KORGER, MD is a Child & Adolescent Psychiatry Physician ([object Object]) practicing in OSHKOSH, Wisconsin with a Medicare Part D prescribing footprint of 997 claims across 30 beneficiaries — 9% brand-name prescribing .

What stands out: JOHN KORGER, MD filed 997 Medicare Part D claims in 2023 across OSHKOSH, Wisconsin. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JOHN KORGER, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

JOHN KORGER, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 07/28/2006

NPI 1952315723

Primary specialty

Child & Adolescent Psychiatry Physician

Mid-sized

6,160 US NPIs in this specialty

Medicare Part D claims

997 66% vs specialty avg

2023 prescription claims

Specialty avg: 600

Specialty distribution in Wisconsin

How Child & Adolescent Psychiatry Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Child & Adolescent Psychiatry Physician share within Wisconsin

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Child & Adolescent 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).

JOHN KORGER, MD is a Child & Adolescent Psychiatry Physician provider practicing in OSHKOSH, Wisconsin, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1952315723. 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.

JOHN KORGER, MD appears in the CMS NPPES registry as a Child & Adolescent Psychiatry Physician provider holding MD credentials at 855 N WESTHAVEN DR, OSHKOSH, WI, 54904, with a listed phone of (920) 303-8700. NPI 1952315723 was issued on 07/28/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KORGER 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 997 prescription claims written by this provider, covering 30 Medicare beneficiaries and totaling roughly $164K in drug spend, split 9% brand-name and 91% 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.

Child & Adolescent Psychiatry Physician is a mid-sized specialty nationwide, with 6,160 enrolled providers across 54 states and an average of 600 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

855 N WESTHAVEN DR
OSHKOSH, WI 54904

Provider Details

NPI 1952315723
Specialty Child & Adolescent Psychiatry Physician
Credentials MD
Gender Male
NPI Issued 07/28/2006

Hospital and facility affiliations

Facilities where JOHN KORGER, MD 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.

AURORA MEDICAL GROUP, INC.
OSHKOSH, WI

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

Brand vs generic prescribing mix · Generic-heavy

JOHN KORGER, MD — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 997 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.

997
Total Claims
$164K
Total Drug Cost
30
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,238
Total Day Supply
33,265
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$125K
Generic Drug Cost
$39K

Patient Demographics

Average Patient Age
52.8 years
Avg HCC Risk Score
1.11
Gender Split
50% female / 50% male
Age Distribution
<65: 15, 65-74: N/A, 75-84: N/A, 85+: 0

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Quetiapine Fumarate Er
Quetiapine Fumarate
92
Clonazepam
69
Olanzapine
55
Quetiapine Fumarate
44
Buspirone Hcl
41
Escitalopram Oxalate
37
Venlafaxine Hcl Er
Venlafaxine Hcl
37
Loxapine
Loxapine Succinate
34
Fluoxetine Hcl
33
Metformin Hcl
32

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

Child & Adolescent Psychiatry Physician Overview

How JOHN KORGER, MD fits within the Child & Adolescent Psychiatry Physician landscape nationally.

6,160
Child & Adolescent Psychiatry Physician Providers in US
54
States with Child & Adolescent Psychiatry Physician
600
Avg Claims per Provider

JOHN KORGER, MD's 997 claims are above the specialty average of 600.

Nearby Child & Adolescent Psychiatry Physician Providers in Wisconsin

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

Compare Child & Adolescent Psychiatry Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOHN KORGER, MD's specialty?
JOHN KORGER, MD specializes in Child & Adolescent Psychiatry Physician and practices in OSHKOSH, Wisconsin. Credentials: MD.
How much does JOHN KORGER, MD prescribe under Medicare Part D?
In 2023, JOHN KORGER, MD wrote 997 Medicare Part D claims totaling $164K in drug costs for 30 beneficiaries.
Where is JOHN KORGER, MD located?
JOHN KORGER, MD is located at 855 N WESTHAVEN DR, OSHKOSH, WI, 54904. Phone: (920) 303-8700.
What is JOHN KORGER, MD's NPI number?
JOHN KORGER, MD's National Provider Identifier (NPI) is 1952315723, issued on 07/28/2006.
Does JOHN KORGER, MD prescribe more brand-name or generic drugs?
JOHN KORGER, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $125K in brand drug costs.
How many Child & Adolescent Psychiatry Physician providers are there in the US?
There are 6,160 Child & Adolescent Psychiatry Physician providers across 54 states in the US. The average Child & Adolescent Psychiatry Physician provider writes 600 Medicare Part D claims per year.
What drugs does JOHN KORGER, MD prescribe most often?
Based on 2023 Medicare Part D data, JOHN KORGER, MD's most frequently prescribed drugs include Quetiapine Fumarate Er, Clonazepam, Olanzapine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHN KORGER, MD accept Medicare?
JOHN KORGER, MD appears in CMS Medicare data with 997 Part D claims and 30 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN KORGER, MD's credentials?
JOHN KORGER, MD's NPI is 1952315723 with credentials MD. 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