2026 NPPES data Maternal & Fetal Medicine Physician NPI 1215058490 MD
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GWYNETH THOMPSON, MD

Maternal & Fetal Medicine Physician in SPRINGFIELD, 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.

What the federal data shows

GWYNETH THOMPSON, MD is a Maternal & Fetal Medicine Physician in SPRINGFIELD, Illinois, listed in the federal CMS National Provider Identifier registry.

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.

Board certification likely (heuristic — not verified)

GWYNETH THOMPSON, 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).

What does the federal data show about GWYNETH THOMPSON, MD?

Quality data not reported

NPI registry status

Active

Issued 04/03/2007

NPI 1215058490

Primary specialty

Maternal & Fetal Medicine Physician

Niche

2,103 US NPIs in this specialty

Specialty distribution in Illinois

How Maternal & Fetal Medicine Physician compares to other specialties among Illinois providers

Illinois providers

Maternal & Fetal Medicine Physician share within Illinois

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

Specialty board-certification context

Estimated specialty board-certified rate — Maternal & Fetal Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Maternal & Fetal Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Maternal & Fetal Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Maternal & Fetal Medicine 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).

GWYNETH THOMPSON, MD appears in the CMS NPPES registry as a Maternal & Fetal Medicine Physician provider holding MD credentials at 415 N 9TH ST, SPRINGFIELD, IL, 62702, with a listed phone of (217) 545-5117. NPI 1215058490 was issued on 04/03/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what THOMPSON 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Maternal & Fetal Medicine Physician providers operate outside Part D entirely.

Maternal & Fetal Medicine Physician is a narrow specialty nationwide, with 2,103 enrolled providers across 52 states and an average of 75 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

415 N 9TH ST
SPRINGFIELD, IL 62702

Provider Details

NPI 1215058490
Specialty Maternal & Fetal Medicine Physician
Credentials MD
Gender Female
NPI Issued 04/03/2007

Hospital and facility affiliations

Facilities where GWYNETH THOMPSON, 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.

SIU PHYSICIANS AND SURGEONS INC
SPRINGFIELD, 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 GWYNETH THOMPSON, MD. To verify GWYNETH THOMPSON, 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.

Maternal & Fetal Medicine Physician Overview

How GWYNETH THOMPSON, MD fits within the Maternal & Fetal Medicine Physician landscape nationally.

2,103
Maternal & Fetal Medicine Physician Providers in US
52
States with Maternal & Fetal Medicine Physician
75
Avg Claims per Provider

Nearby Maternal & Fetal Medicine Physician Providers in Illinois

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

Compare Maternal & Fetal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GWYNETH THOMPSON, MD's specialty?
GWYNETH THOMPSON, MD specializes in Maternal & Fetal Medicine Physician and practices in SPRINGFIELD, Illinois. Credentials: MD.
Where is GWYNETH THOMPSON, MD located?
GWYNETH THOMPSON, MD is located at 415 N 9TH ST, SPRINGFIELD, IL, 62702. Phone: (217) 545-5117.
What is GWYNETH THOMPSON, MD's NPI number?
GWYNETH THOMPSON, MD's National Provider Identifier (NPI) is 1215058490, issued on 04/03/2007.
How many Maternal & Fetal Medicine Physician providers are there in the US?
There are 2,103 Maternal & Fetal Medicine Physician providers across 52 states in the US. The average Maternal & Fetal Medicine Physician provider writes 75 Medicare Part D claims per year.
Does GWYNETH THOMPSON, MD accept Medicare?
GWYNETH THOMPSON, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GWYNETH THOMPSON, MD's credentials?
GWYNETH THOMPSON, MD's NPI is 1215058490 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.
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