2026 NPPES data Emergency Medicine Physician NPI 1831324789 MD
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HEATHER DIEPERINK OPTHOLT, MD

Emergency Medicine Physician in CHICAGO HEIGHTS, Illinois. 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
88
Medicare Part D claims · 61 beneficiaries · Emergency Medicine Physician avg: 352
MIPS score
81.1261/100
▼ 2 pts below national avg 83.1 · [object Object]

What the federal data shows

HEATHER DIEPERINK OPTHOLT, MD reported a CMS MIPS final score of 81.1261/100 — below the 83.1 national average — and filed 88 Medicare Part D claims in 2023.

81.1261/100
MIPS score · -2 vs avg
88
Part D claims, 2023
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.

HEATHER DIEPERINK OPTHOLT, MD's MIPS score vs every scored U.S. clinician

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

81 36th percentile higher than 36% 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%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 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)

HEATHER DIEPERINK OPTHOLT, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — 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 HEATHER DIEPERINK OPTHOLT, MD?

Near national average

NPI registry status

Active

Issued 05/21/2009

NPI 1831324789

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

88 75% vs specialty avg

2023 prescription claims

Specialty avg: 352

MIPS final score

81.1261/100 1.9739000000000004% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Illinois

How Emergency Medicine Physician compares to other specialties among Illinois providers

Illinois providers

Emergency Medicine Physician share within Illinois

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

Medicare quality performance — MIPS

HEATHER DIEPERINK OPTHOLT, MD's 2023 MIPS final score plotted against the Emergency Medicine Physician national average

Near national average
MIPS Final Score
81.1261/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Emergency Medicine Physician) — 81.1261/100 vs national avg 83.1

0%100%National avg83%81.1%
MIPS final score (Emergency Medicine Physician) — 81.1261/100 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).

HEATHER DIEPERINK OPTHOLT, MD appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding MD credentials at 30 E 15TH ST, CHICAGO HEIGHTS, IL, 60411, with a listed phone of (312) 206-1064. NPI 1831324789 was issued on 05/21/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DIEPERINK OPTHOLT 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 88 prescription claims written by this provider, covering 61 Medicare beneficiaries and totaling roughly $3K in drug spend. 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 81.1261/100 for the 2023 performance year (Quality 72.8388), compared with the national average of 83.1.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 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

30 E 15TH ST
CHICAGO HEIGHTS, IL 60411

Provider Details

NPI 1831324789
Specialty Emergency Medicine Physician
Credentials MD
Gender Female
NPI Issued 05/21/2009

CMS Quality Score (MIPS)

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

81.1261
Final Score
Avg: 83.1
72.8388
Quality

Reporting: Group practice

Hospital and facility affiliations

Facilities where HEATHER DIEPERINK OPTHOLT, 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.

ADVOCATE HEALTH AND HOSPITALS CORPORATION
PARK RIDGE, IL

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 — Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 — they are NOT specific to HEATHER DIEPERINK OPTHOLT, MD. To verify HEATHER DIEPERINK OPTHOLT, MD's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR 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 Illinois 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.

88
Total Claims
$3K
Total Drug Cost
61
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
88
Total Day Supply
1,074
Generic Drug Cost
$1K
Antibiotic Claims
29

Patient Demographics

Average Patient Age
71.8 years
Avg HCC Risk Score
1.60
Gender Split
67% female / 33% male

Emergency Medicine Physician Overview

How HEATHER DIEPERINK OPTHOLT, MD fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

HEATHER DIEPERINK OPTHOLT, MD's 88 claims are below the specialty average of 352.

Nearby Emergency Medicine Physician Providers in Illinois

Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as DIEPERINK OPTHOLT.

Compare Emergency Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is HEATHER DIEPERINK OPTHOLT, MD's specialty?
HEATHER DIEPERINK OPTHOLT, MD specializes in Emergency Medicine Physician and practices in CHICAGO HEIGHTS, Illinois. Credentials: MD.
How much does HEATHER DIEPERINK OPTHOLT, MD prescribe under Medicare Part D?
In 2023, HEATHER DIEPERINK OPTHOLT, MD wrote 88 Medicare Part D claims totaling $3K in drug costs for 61 beneficiaries.
What is HEATHER DIEPERINK OPTHOLT, MD's Medicare quality score?
HEATHER DIEPERINK OPTHOLT, MD has a CMS MIPS Final Score of 81.1261/100 (Quality: 72.8388). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is HEATHER DIEPERINK OPTHOLT, MD located?
HEATHER DIEPERINK OPTHOLT, MD is located at 30 E 15TH ST, CHICAGO HEIGHTS, IL, 60411. Phone: (312) 206-1064.
What is HEATHER DIEPERINK OPTHOLT, MD's NPI number?
HEATHER DIEPERINK OPTHOLT, MD's National Provider Identifier (NPI) is 1831324789, issued on 05/21/2009.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
Does HEATHER DIEPERINK OPTHOLT, MD accept Medicare?
HEATHER DIEPERINK OPTHOLT, MD appears in CMS Medicare data with 88 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 HEATHER DIEPERINK OPTHOLT, MD's credentials?
HEATHER DIEPERINK OPTHOLT, MD's NPI is 1831324789 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