2026 NPPES data Psychiatry Physician NPI 1881647576 M.D.
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MELISSA CHAPPELL, M.D.

Psychiatry Physician in EVERGREEN PARK, 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
167
Medicare Part D claims · Psychiatry Physician avg: 1K
Industry payments
$520.11
22 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MELISSA CHAPPELL, M.D. filed 167 Medicare Part D claims in 2023 as a Psychiatry Physician in EVERGREEN PARK, Illinois.

167
Part D claims, 2023
$520.11
industry payments (Sunshine Act)

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.

MELISSA CHAPPELL, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

167 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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

Board-eligible specialty (heuristic — not verified)

MELISSA CHAPPELL, 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 MELISSA CHAPPELL, M.D.?

Quality data not reported

NPI registry status

Active

Issued 05/17/2006

NPI 1881647576

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

167 84% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

Specialty distribution in Illinois

How Psychiatry Physician compares to other specialties among Illinois providers

Illinois providers

Psychiatry Physician share within Illinois

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

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).

MELISSA CHAPPELL, M.D. appears in the CMS NPPES registry as a Psychiatry Physician provider holding M.D. credentials at 2850 W. 95TH ST, EVERGREEN PARK, IL, 60805, with a listed phone of (708) 422-5090. NPI 1881647576 was issued on 05/17/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHAPPELL 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 167 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $5K 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.

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

2850 W. 95TH ST
EVERGREEN PARK, IL 60805

Provider Details

NPI 1881647576
Specialty Psychiatry Physician
Credentials M.D.
Gender Female
NPI Issued 05/17/2006

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 MELISSA CHAPPELL, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$520

Largest payer

ABBVIE INC.

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.

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 MELISSA CHAPPELL, M.D.. To verify MELISSA CHAPPELL, M.D.'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.

167
Total Claims
$5K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
284
Total Day Supply
8,219
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
64.3 years
Avg HCC Risk Score
0.76

Top Prescribed Drugs (Medicare Part D)

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

What MELISSA CHAPPELL, 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
Lithium Carbonate
32
Lorazepam
16
Bupropion Xl
Bupropion Hcl
14
Clonazepam
14
Venlafaxine Hcl Er
Venlafaxine Hcl
13
Trazodone Hcl
11

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

Psychiatry Physician Overview

How MELISSA CHAPPELL, 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

MELISSA CHAPPELL, M.D.'s 167 claims are below the specialty average of 1,038.

Nearby Psychiatry Physician Providers in Illinois

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

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

Frequently Asked Questions

What is MELISSA CHAPPELL, M.D.'s specialty?
MELISSA CHAPPELL, M.D. specializes in Psychiatry Physician and practices in EVERGREEN PARK, Illinois. Credentials: M.D..
How much does MELISSA CHAPPELL, M.D. prescribe under Medicare Part D?
In 2023, MELISSA CHAPPELL, M.D. wrote 167 Medicare Part D claims totaling $5K in drug costs for N/A beneficiaries.
Where is MELISSA CHAPPELL, M.D. located?
MELISSA CHAPPELL, M.D. is located at 2850 W. 95TH ST, EVERGREEN PARK, IL, 60805. Phone: (708) 422-5090.
What is MELISSA CHAPPELL, M.D.'s NPI number?
MELISSA CHAPPELL, M.D.'s National Provider Identifier (NPI) is 1881647576, issued on 05/17/2006.
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 MELISSA CHAPPELL, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MELISSA CHAPPELL, M.D.'s most frequently prescribed drugs include Lithium Carbonate, Lorazepam, Bupropion Xl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MELISSA CHAPPELL, M.D. accept Medicare?
MELISSA CHAPPELL, M.D. appears in CMS Medicare data with 167 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MELISSA CHAPPELL, M.D.'s credentials?
MELISSA CHAPPELL, M.D.'s NPI is 1881647576 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