2026 NPPES data Internal Medicine Physician NPI 1063649101 MD
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Simeon Zou, MD

Internal Medicine Physician in Evansville, Indiana. 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
148
Medicare Part D claims · 61 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.5/100
▼ 4 pts below national avg 83.1 · [object Object]
Industry payments
$159.09
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

Simeon Zou, MD reported a CMS MIPS final score of 79.5/100 — below the 83.1 national average — and filed 148 Medicare Part D claims in 2023.

79.5/100
MIPS score · -4 vs avg
148
Part D claims, 2023
91%
generic prescribing
Likely
board-certified (heuristic)

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.

Simeon Zou, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

80 30th percentile higher than 30% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

Simeon Zou, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 4 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Simeon Zou, MD?

Near national average

NPI registry status

Active

Issued 06/16/2009

NPI 1063649101

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

148 95% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

79.5/100 3.6 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in Indiana

How Internal Medicine Physician compares to other specialties among Indiana providers

Indiana providers

Internal Medicine Physician share within Indiana

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

Medicare quality performance — MIPS

Simeon Zou, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average

Near national average
MIPS Final Score
79.5/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) — 79.5/100 vs national avg 83.1

0%100%National avg83%79.5%
MIPS final score (Internal Medicine Physician) — 79.5/100 vs national avg 83.1

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).

Simeon Zou, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 600 MARY ST, Evansville, IN, 47710, with a listed phone of (269) 330-5631. NPI 1063649101 was issued on 06/16/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Zou 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 148 prescription claims written by this provider, covering 61 Medicare beneficiaries and totaling roughly $22K 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.5/100 for the 2023 performance year (Quality 78.2, Cost 50.9), compared with the national average of 83.1.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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 MARY ST
Evansville, IN 47710

Provider Details

NPI 1063649101
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 06/16/2009

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

79.5254
Final Score
Avg: 83.1
78.1611
Quality
50.9082
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Simeon Zou, 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.

Covenant Medical Center, Inc.
Saginaw, MI
Methodist Health, Inc.
Henderson, KY
Saint Joseph Regional Medical Center Inc
Mishawaka, IN
Saint Joseph Regional Medical Center-South Bend Campus Inc
Mishawaka, IN

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

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Simeon Zou, MD. Source: openpaymentsdata.cms.gov.

Total received

$159

Largest payer

AstraZeneca Pharmaceuticals LP

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Generic-heavy

Simeon Zou, MD — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 148 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.

148
Total Claims
$22K
Total Drug Cost
61
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
210
Total Day Supply
6,243
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$15K
Generic Drug Cost
$7K

Patient Demographics

Average Patient Age
71.1 years
Avg HCC Risk Score
1.42
Gender Split
56% female / 44% male

Top Prescribed Drugs (Medicare Part D)

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

What Simeon Zou, MD 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
Carbidopa-Levodopa
Carbidopa/Levodopa
20
Pyridostigmine Bromide
14
Levetiracetam
12
Propranolol Hcl Er
Propranolol Hcl
12

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

Internal Medicine Physician Overview

How Simeon Zou, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Simeon Zou, MD's 148 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Indiana

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

Compare Internal Medicine Physician 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 Indiana medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Internal Medicine Physician 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 Simeon Zou, MD's specialty?
Simeon Zou, MD specializes in Internal Medicine Physician and practices in Evansville, Indiana. Credentials: MD.
How much does Simeon Zou, MD prescribe under Medicare Part D?
In 2023, Simeon Zou, MD wrote 148 Medicare Part D claims totaling $22K in drug costs for 61 beneficiaries.
What is Simeon Zou, MD's Medicare quality score?
Simeon Zou, MD has a CMS MIPS Final Score of 79.5/100 (Quality: 78.2, Cost: 50.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Simeon Zou, MD located?
Simeon Zou, MD is located at 600 MARY ST, Evansville, IN, 47710. Phone: (269) 330-5631.
What is Simeon Zou, MD's NPI number?
Simeon Zou, MD's National Provider Identifier (NPI) is 1063649101, issued on 06/16/2009.
Does Simeon Zou, MD prescribe more brand-name or generic drugs?
Simeon Zou, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $15K in brand drug costs.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Simeon Zou, MD prescribe most often?
Based on 2023 Medicare Part D data, Simeon Zou, MD's most frequently prescribed drugs include Carbidopa-Levodopa, Pyridostigmine Bromide, Levetiracetam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Simeon Zou, MD accept Medicare?
Simeon Zou, MD appears in CMS Medicare data with 148 Part D claims and 61 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Simeon Zou, MD's credentials?
Simeon Zou, MD's NPI is 1063649101 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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