2026 NPPES data Obstetrics Physician NPI 1144753237 DO
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MEGAN SAUER, DO

Obstetrics Physician in ALTON, 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
161
Medicare Part D claims · 67 beneficiaries · Obstetrics Physician avg: 319
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$89.69
5 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MEGAN SAUER, DO is a Obstetrics Physician ([object Object]) practicing in ALTON, Illinois with a Medicare Part D prescribing footprint of 161 claims across 67 beneficiaries — 15% brand-name prescribing . Industry payments of $89.69 across 5 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MEGAN SAUER, DO filed 161 Medicare Part D claims in 2023 across ALTON, Illinois. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MEGAN SAUER, DO 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).

MEGAN SAUER, DO at a glance

Quality data not reported

NPI registry status

Active

Issued 04/06/2017

NPI 1144753237

Primary specialty

Obstetrics Physician

Niche

1,402 US NPIs in this specialty

Medicare Part D claims

161 50% 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).

MEGAN SAUER, DO is a Obstetrics Physician provider practicing in ALTON, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DO. NPI: 1144753237. 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.

MEGAN SAUER, DO appears in the CMS NPPES registry as a Obstetrics Physician provider holding DO credentials at 1 PROFESSIONAL DR, ALTON, IL, 62002, with a listed phone of (618) 463-8555. NPI 1144753237 was issued on 04/06/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SAUER 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 161 prescription claims written by this provider, covering 67 Medicare beneficiaries and totaling roughly $18K in drug spend, split 15% brand-name and 85% 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.

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

1 PROFESSIONAL DR
ALTON, IL 62002

Provider Details

NPI 1144753237
Specialty Obstetrics Physician
Credentials DO
Gender Female
NPI Issued 04/06/2017

Hospital and facility affiliations

Facilities where MEGAN SAUER, DO 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.

FAIRVIEW HEIGHTS MEDICAL GROUP SC
ALTON, 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).

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 MEGAN SAUER, DO. Source: openpaymentsdata.cms.gov.

Total received

$90

Largest payer

Astellas Pharma US 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 MEGAN SAUER, DO. To verify MEGAN SAUER, DO'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.

Brand vs generic prescribing mix · Typical

MEGAN SAUER, DO — brand share 15.0%
Specialty average (est.)

15% brand-name claims vs 85% generic, on 161 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.

161
Total Claims
$18K
Total Drug Cost
67
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
269
Total Day Supply
7,007
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$15K
Generic Drug Cost
$3K
Antibiotic Claims
13

Patient Demographics

Average Patient Age
69.4 years
Avg HCC Risk Score
1.10
Gender Split
100% female / 0% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Triamcinolone Acetonide
37
Alendronate Sodium
22
Metronidazole
12
Premarin
"Estrogens
N/A

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

Obstetrics Physician Overview

How MEGAN SAUER, DO fits within the Obstetrics Physician landscape nationally.

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

MEGAN SAUER, DO's 161 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 SAUER.

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

Frequently Asked Questions

What is MEGAN SAUER, DO's specialty?
MEGAN SAUER, DO specializes in Obstetrics Physician and practices in ALTON, Illinois. Credentials: DO.
How much does MEGAN SAUER, DO prescribe under Medicare Part D?
In 2023, MEGAN SAUER, DO wrote 161 Medicare Part D claims totaling $18K in drug costs for 67 beneficiaries.
Where is MEGAN SAUER, DO located?
MEGAN SAUER, DO is located at 1 PROFESSIONAL DR, ALTON, IL, 62002. Phone: (618) 463-8555.
What is MEGAN SAUER, DO's NPI number?
MEGAN SAUER, DO's National Provider Identifier (NPI) is 1144753237, issued on 04/06/2017.
Does MEGAN SAUER, DO prescribe more brand-name or generic drugs?
MEGAN SAUER, DO's prescribing is 15% brand-name and 85% generic drugs by claim count, with $15K in brand drug costs.
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 MEGAN SAUER, DO prescribe most often?
Based on 2023 Medicare Part D data, MEGAN SAUER, DO's most frequently prescribed drugs include Triamcinolone Acetonide, Alendronate Sodium, Metronidazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MEGAN SAUER, DO accept Medicare?
MEGAN SAUER, DO appears in CMS Medicare data with 161 Part D claims and 67 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MEGAN SAUER, DO's credentials?
MEGAN SAUER, DO's NPI is 1144753237 with credentials DO. 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