2026 NPPES data Obstetrics Physician NPI 1669486668 MD FACOG
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ANTHONY AMIEWALAN, MD FACOG

Obstetrics Physician in DECATUR, 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
106
Medicare Part D claims · 30 beneficiaries · Obstetrics Physician avg: 319
What the federal data reveals: ANTHONY AMIEWALAN, MD FACOG is a Obstetrics Physician ([object Object]) practicing in DECATUR, Illinois with a Medicare Part D prescribing footprint of 106 claims across 30 beneficiaries .

What stands out: ANTHONY AMIEWALAN, MD FACOG filed 106 Medicare Part D claims in 2023 across DECATUR, Illinois. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

ANTHONY AMIEWALAN, MD FACOG 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).

ANTHONY AMIEWALAN, MD FACOG at a glance

Quality data not reported

NPI registry status

Active

Issued 07/28/2006

NPI 1669486668

Primary specialty

Obstetrics Physician

Niche

1,402 US NPIs in this specialty

Medicare Part D claims

106 67% vs specialty avg

2023 prescription claims

Specialty avg: 319

Specialty distribution in Illinois

How Obstetrics Physician compares to other specialties among Illinois providers

Illinois providers

Obstetrics Physician share within Illinois

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Obstetrics 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).

ANTHONY AMIEWALAN, MD FACOG is a Obstetrics Physician provider practicing in DECATUR, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD FACOG. NPI: 1669486668. 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.

ANTHONY AMIEWALAN, MD FACOG appears in the CMS NPPES registry as a Obstetrics Physician provider holding MD FACOG credentials at 1750 EAST LAKE SHORE DR, DECATUR, IL, 62521, with a listed phone of (217) 422-0560. NPI 1669486668 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 AMIEWALAN 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 106 prescription claims written by this provider, covering 30 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.

Obstetrics Physician is a narrow specialty nationwide, with 1,402 enrolled providers across 54 states and an average of 319 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

1750 EAST LAKE SHORE DR
DECATUR, IL 62521

Provider Details

NPI 1669486668
Specialty Obstetrics Physician
Credentials MD FACOG
Gender Male
NPI Issued 07/28/2006

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 ANTHONY AMIEWALAN, MD FACOG. To verify ANTHONY AMIEWALAN, MD FACOG'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.

106
Total Claims
$5K
Total Drug Cost
30
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
148
Total Day Supply
3,772
Generic Drug Cost
$4K
Antibiotic Claims
12

Patient Demographics

Average Patient Age
59.7 years
Avg HCC Risk Score
0.89
Age Distribution
<65: 15, 65-74: 12, 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.

Drug Claims
Tolterodine Tartrate Er
Tolterodine Tartrate
24
Fluconazole
18

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

Obstetrics Physician Overview

How ANTHONY AMIEWALAN, MD FACOG fits within the Obstetrics Physician landscape nationally.

1,402
Obstetrics Physician Providers in US
54
States with Obstetrics Physician
319
Avg Claims per Provider

ANTHONY AMIEWALAN, MD FACOG's 106 claims are below the specialty average of 319.

Nearby Obstetrics Physician Providers in Illinois

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

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

Frequently Asked Questions

What is ANTHONY AMIEWALAN, MD FACOG's specialty?
ANTHONY AMIEWALAN, MD FACOG specializes in Obstetrics Physician and practices in DECATUR, Illinois. Credentials: MD FACOG.
How much does ANTHONY AMIEWALAN, MD FACOG prescribe under Medicare Part D?
In 2023, ANTHONY AMIEWALAN, MD FACOG wrote 106 Medicare Part D claims totaling $5K in drug costs for 30 beneficiaries.
Where is ANTHONY AMIEWALAN, MD FACOG located?
ANTHONY AMIEWALAN, MD FACOG is located at 1750 EAST LAKE SHORE DR, DECATUR, IL, 62521. Phone: (217) 422-0560.
What is ANTHONY AMIEWALAN, MD FACOG's NPI number?
ANTHONY AMIEWALAN, MD FACOG's National Provider Identifier (NPI) is 1669486668, issued on 07/28/2006.
How many Obstetrics Physician providers are there in the US?
There are 1,402 Obstetrics Physician providers across 54 states in the US. The average Obstetrics Physician provider writes 319 Medicare Part D claims per year.
What drugs does ANTHONY AMIEWALAN, MD FACOG prescribe most often?
Based on 2023 Medicare Part D data, ANTHONY AMIEWALAN, MD FACOG's most frequently prescribed drugs include Tolterodine Tartrate Er, Fluconazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANTHONY AMIEWALAN, MD FACOG accept Medicare?
ANTHONY AMIEWALAN, MD FACOG appears in CMS Medicare data with 106 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 ANTHONY AMIEWALAN, MD FACOG's credentials?
ANTHONY AMIEWALAN, MD FACOG's NPI is 1669486668 with credentials MD FACOG. 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