2026 NPPES data Gastroenterology Physician NPI 1427007764 M.D.
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Ervin Eaker, M.D.

Gastroenterology Physician in Shawnee, Kansas. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 16,567 in Gastroenterology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration — see our methodology.

Federal data — no proprietary rating. We show these CMS records as-is — no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
863
Medicare Part D claims · 267 beneficiaries · Gastroenterology Physician avg: 833
MIPS score
13.6/100
▼ 70 pts below national avg 83.1 · Penalty band
Industry payments
$2.2K
120 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Ervin Eaker, M.D. reported a CMS MIPS final score of 13.6/100 - below the 83.1 national average - and filed 863 Medicare Part D claims in 2023.

13.6/100
MIPS score · -70 vs avg
863
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.

Ervin Eaker, M.D.'s MIPS score vs every scored U.S. clinician

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

14 2nd percentile higher than 2% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). This entry sits in this band. 20–30: 3,069 scored providers (1%). Above this entry. 30–40: 2,746 scored providers (1%). Above this entry. 40–50: 2,928 scored providers (1%). Above this entry. 50–60: 5,882 scored providers (1%). Above this entry. 60–70: 13,906 scored providers (3%). Above this entry. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 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

Where Ervin Eaker, M.D. sits

This provider among gastroenterology physician peers

Across the 5,957 gastroenterology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Ervin Eaker, M.D. writes more Part D claims than 54% of them and scores higher on MIPS quality than 1% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 0Ervin Eaker, M.D.-Part D claim volume, percentile in specialty: 54 · MIPS quality, percentile: 1
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one gastroenterology physician peer from a representative sample of 60; the gold marker is Ervin Eaker, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic — not verified)

Ervin Eaker, M.D. 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 Ervin Eaker, M.D.?

Below national average

NPI registry status

Active

Issued 05/05/2006

NPI 1427007764

Primary specialty

Gastroenterology Physician

Mid-sized

16,567 US NPIs in this specialty

Medicare Part D claims

863 4% vs specialty avg

2023 prescription claims

Specialty avg: 833

MIPS final score

13.6/100 69.5 pts vs avg

Penalty band band

vs 83.1 national avg

Specialty distribution in Kansas

How Gastroenterology Physician compares to other specialties among Kansas providers

Kansas providers

Largest specialties in Kansas (% of in-state providers)

Behavior Technician - 6.6%Behavior Technician6.6%Social Worker - 5%Social Worker5%Pharmacist - 4.9%Pharmacist4.9%Physical Therapist - 4.8%Physical Therapist4.8%Family Nurse Practitioner - 3.9%Family Nurse Practitioner3.9%Clinical Social Worker - 3.7%Clinical Social Worker3.7%Gastroenterology Physician - 0.1%Gastroenterology Physician0.1%
Largest specialties in Kansas (% of in-state providers)

Medicare quality performance — MIPS

Ervin Eaker, M.D.'s 2023 MIPS final score plotted against the Gastroenterology Physician national average

Below national average
MIPS Final Score
13.6/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Gastroenterology Physician) — 13.6/100 vs national avg 83.1

0%100%National avg83%13.6%
MIPS final score (Gastroenterology Physician) — 13.6/100 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).

Ervin Eaker, M.D. appears in the CMS NPPES registry as a Gastroenterology Physician provider holding M.D. credentials at 7230 RENNER RD, Shawnee, KS, 66217, with a listed phone of (913) 631-2600. NPI 1427007764 was issued on 05/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Eaker 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 863 prescription claims written by this provider, covering 267 Medicare beneficiaries and totaling roughly $401K 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 13.6/100 for the 2023 performance year (Quality 0, Cost 45.3), compared with the national average of 83.1.

Gastroenterology Physician is a mid-sized specialty nationwide, with 16,567 enrolled providers across 54 states and an average of 833 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

7230 RENNER RD
Shawnee, KS 66217

Provider Details

NPI 1427007764
Specialty Gastroenterology Physician
Credentials M.D.
Gender Male
NPI Issued 05/05/2006

CMS Quality Score (MIPS)

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

13.5877
Final Score
Avg: 83.1
0
Quality
45.2923
Cost

Reporting: Individual

Hospital and facility affiliations

Facilities where Ervin Eaker, M.D. 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.

Prime Healthcare Physician Services - Providence Inc
Leavenworth, KS

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 Ervin Eaker, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$2.2K

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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

863
Total Claims
$401K
Total Drug Cost
267
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,380
Total Day Supply
39,802
Generic Drug Cost
$27K
Antibiotic Claims
18

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
1.30
Gender Split
59% female / 41% male
Age Distribution
<65: 23, 65-74: 149, 75-84: 80, 85+: 15

Top Prescribed Drugs (Medicare Part D)

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

What Ervin Eaker, 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
Pantoprazole Sodium
378
Famotidine
87
Sucralfate
87
Omeprazole
45
Dicyclomine Hcl
29
Esomeprazole Magnesium
21
Amitriptyline Hcl
16
Colestipol Hcl
16
Diphenoxylate-Atropine
Diphenoxylate Hcl/Atropine
14
Linzess
Linaclotide
13

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

Gastroenterology Physician Overview

How Ervin Eaker, M.D. fits within the Gastroenterology Physician landscape nationally.

16,567
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
833
Avg Claims per Provider

Ervin Eaker, M.D.'s 863 claims are above the specialty average of 833.

Nearby Gastroenterology Physician Providers in Kansas

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

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Kansas medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Gastroenterology Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Ervin Eaker, M.D.'s specialty?
Ervin Eaker, M.D. specializes in Gastroenterology Physician and practices in Shawnee, Kansas. Credentials: M.D..
How much does Ervin Eaker, M.D. prescribe under Medicare Part D?
In 2023, Ervin Eaker, M.D. wrote 863 Medicare Part D claims totaling $401K in drug costs for 267 beneficiaries.
What is Ervin Eaker, M.D.'s Medicare quality score?
Ervin Eaker, M.D. has a CMS MIPS Final Score of 13.6/100 (Quality: 0, Cost: 45.3). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Ervin Eaker, M.D. located?
Ervin Eaker, M.D. is located at 7230 RENNER RD, Shawnee, KS, 66217. Phone: (913) 631-2600.
What is Ervin Eaker, M.D.'s NPI number?
Ervin Eaker, M.D.'s National Provider Identifier (NPI) is 1427007764, issued on 05/05/2006.
How many Gastroenterology Physician providers are there in the US?
There are 16,567 Gastroenterology Physician providers across 54 states in the US. The average Gastroenterology Physician provider writes 833 Medicare Part D claims per year.
What drugs does Ervin Eaker, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Ervin Eaker, M.D.'s most frequently prescribed drugs include Pantoprazole Sodium, Famotidine, Sucralfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ervin Eaker, M.D. accept Medicare?
Ervin Eaker, M.D. appears in CMS Medicare data with 863 Part D claims and 267 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ervin Eaker, M.D.'s credentials?
Ervin Eaker, M.D.'s NPI is 1427007764 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.
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

Compiled from official public sources by the PlainDoctor editorial team.