Dr. Megan Jean Walker, MD

  • Indianapolis, IN
  • Gastroenterologist
NPI1124384326PAC ID2466746573
Medicare services, 2024
117
Medicare patients, 2024
103
Part D claims, 2024
434
Publications
4
Hospital affiliations
3
Practice address
1701 N Senate Blvd, Indianapolis, IN 46202
Practice phone
Call (317) 962-2000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

IU Health Methodist Hospital

Hospital · Indianapolis, Indiana

See all 8 affiliations

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Dr. Megan Jean Walker is a gastroenterologist in Indianapolis, Indiana

Dr. Walker practices at IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health.

Dr. Walker's NPI, 1124384326, was assigned on April 2, 2012. Dr. Walker holds Indiana license 01076578A.

NPI and contact details
Medicare PAC ID
2466746573
NPI enumeration date
April 2, 2012
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(317) 962-2000
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
40
Medical school graduation
2012

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Megan Jean Walker practices at IU Health Methodist Hospital in Indianapolis, Indiana

Dr. Walker's primary practice is IU Health Methodist Hospital, at 1701 N Senate Blvd, Indianapolis, IN 46202 in Marion County. The practice phone is (317) 962-2000.

Source: Dmand AI Affiliation Data

Dr. Megan Jean Walker is affiliated with 6 sites of care and 2 medical groups

Dr. Walker's primary practice is IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health. Dr. Walker is also affiliated with IU Health North Hospital. The medical group on file is IU Health Medical Group. Dmand AI also links Dr. Walker to 1 more hospital, 2 group practices and clinics, 1 behavioral health center and 1 medical group, each named with a free account.

See all 8 affiliations for Dr. Walker

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Megan Jean Walker's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walker practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
IU Health Methodist HospitalAvailable with a free account
+5 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Megan Jean Walker is one of 333 gastroenterologists in Indiana

Gastroenterology is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Walker is board certified in gastroenterology by the American Board of Internal Medicine. Dr. Walker is licensed in Indiana.

Specialties and state licenses

  • Gastroenterology, IndianaPrimaryLicense 01076578A · taxonomy 207RG0100X

Gastroenterologists near Dr. Walker

Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Megan Jean Walker billed Medicare for 117 services in 2024

CMS data shows 117 Medicare services from Dr. Walker across 5 procedure codes in 2024, for 103 Medicare patients. Medicare paid $12,776 for them.

Medicare services, 2024117
Medicare patients103
Paid by Medicare$12,776
Procedure codes5

Dr. Walker's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 552024: 6111%
Surgery
2023: 352024: 5660%

Where Dr. Walker's Medicare services took place, 2024

  • In an office6152%
  • In a facility5648%

Dr. Walker compared with the Indiana median for gastroenterologists, 2024

  • Dr. Walker
  • Indiana median
Medicare services
117vs 47175% below
Medicare patients
103vs 30967% below
Part D claims
291vs 42231% below

Medians across 330 gastroenterologists in Indiana with Dmand AI profiles that report each measure.

Dr. Walker's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Walker

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Megan Jean Walker treated 103 Medicare patients in 2024, average age 71

CMS counts 103 Medicare patients who saw Dr. Walker in 2024. The largest group is 65 to 74, with 48 patients. 66% of them have high cholesterol, and 62% have high blood pressure. Their average risk score is 1.16, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Walker's median patient age at 49, with 58% women.

Medicare patients, 2024103
Average age71
Average risk score1.16

Dr. Walker's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Walker's Medicare patients by sex, 2024

  • Women7270%
  • Men3130%

Chronic conditions among Dr. Walker's Medicare patients, 2024

  1. High cholesterol66%
  2. High blood pressure62%
  3. Arthritis53%
  4. Mood disorders34%
  5. Anxiety32%
  6. Depression27%
  7. Ischemic heart disease23%
  8. Osteoporosis21%

Share of Medicare patients with each condition. A patient can have several.

Dr. Walker's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 49

Patient panel by sex, all payers

  • Women58%
  • Men41%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Megan Jean Walker wrote 434 Medicare Part D claims in 2024

In 2024, Dr. Walker wrote 434 Medicare Part D claims for 137 patients. 71% of them were for generic drugs. CMS names the drug for 291 of them, across 15 drugs with 11 or more claims each, at $518,398 in total drug cost. In 2023, CMS named 268 claims across 13 drugs.

Part D claims, 2024434
Drugs named by CMS15
Total drug cost$518,398
Part D patients137

Dr. Walker's Part D claims by kind of drug, 2024

  • Generic307 claims71%
  • Brand-name and other127 claims29%

Dr. Walker's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2682024: 2919%

Drugs named by CMS: 15 in 2024, 13 in 2023.

See all prescribing by Dr. Walker

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Megan Jean Walker ranks in the 51st percentile for colonoscopy in Medicare

Dr. Walker accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Walker as offering telehealth. CMS counts 25 procedures of colonoscopy by Dr. Walker, more than 51% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Where Dr. Walker ranks in Medicare procedure volume

Colonoscopy
51st percentile25 procedures
Upper gastrointestinal (GI) endoscopy for acid reflux
50th percentile20 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Megan Jean Walker has 4 publications on record

Dmand AI links 4 papers to Dr. Walker, published from 2019 to 2022. The most frequent topics are Colonoscopy. Dr. Walker's most frequent co-authors are Monika Fischer, MD, Nicholas R. Crews, MD and Nabil F. Fayad, MD.

Papers4
Years published2019 to 2022

Dr. Walker's papers by year, 2019 to 2022

Topics Dr. Walker writes about most

  • Colonoscopy

Dr. Walker's most frequent co-authors

Recent publications by Dr. Walker

See all 4 publications and co-authors

See who Dr. Walker researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Walker works with, so you can find a warm path to the right gastroenterologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Megan Jean Walker received $872 in industry payments from 2018 to 2025

CMS Open Payments shows 27 general payments to Dr. Walker from 9 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 79% of the total. Janssen Pharmaceuticals, Inc paid the most, $526.

General payments to Dr. Walker by program year, 2018 to 2025

General payments to Dr. Walker by kind, 2018 to 2025

$872in total
  • Food and beverage$68879%
  • Education$18421%

Companies that paid Dr. Walker the most, 2018 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Walker

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Megan Jean Walker is board certified in gastroenterology

  1. Board certified in gastroenterologyAmerican Board of Internal Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Megan Jean Walker's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Megan Jean Walker

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Megan Jean Walker's NPI number?

Dr. Megan Jean Walker's NPI number is 1124384326. It was assigned on April 2, 2012, and it is active in the NPI Registry.

What kind of doctor is Dr. Megan Jean Walker?

Dr. Megan Jean Walker is a gastroenterologist in Indianapolis, Indiana. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Megan Jean Walker practice?

Dr. Walker practices at 1701 N Senate Blvd, Indianapolis, IN 46202. Dr. Walker's primary practice is IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health. Dmand AI also links Dr. Walker to 1 hospital, 2 group practices and clinics, 1 behavioral health center and 1 medical group.

What is Dr. Megan Jean Walker's office phone number?

The practice phone on file for Dr. Walker is (317) 962-2000.

What is Dr. Megan Jean Walker's medical license number?

Dr. Walker holds Indiana license 01076578A.

Which hospitals is Dr. Megan Jean Walker affiliated with?

Dr. Walker practices at IU Health Methodist Hospital in Indianapolis, Indiana. Dr. Walker is also affiliated with IU Health North Hospital. Dmand AI links Dr. Walker to 1 more hospital.

What medical group is Dr. Megan Jean Walker part of?

Dr. Walker is linked to IU Health Medical Group. Dmand AI links Dr. Walker to 1 more medical group.

Does Dr. Megan Jean Walker accept Medicare?

Yes. CMS data shows Dr. Walker billed Medicare for 117 services in 2024, and Dr. Walker accepts Medicare assignment.

Does Dr. Megan Jean Walker offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Walker as offering telehealth services.

How many Medicare patients does Dr. Megan Jean Walker see?

CMS counts 103 Medicare patients who saw Dr. Walker in 2024, with an average age of 71.

Show 7 more questionsShow fewer questions

Is Dr. Megan Jean Walker board certified?

Yes. Dr. Walker is board certified in gastroenterology by the American Board of Internal Medicine.

What services does Dr. Megan Jean Walker bill to Medicare?

In 2024, Dr. Walker's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (45385) and office visit, established patient (99213).

What drugs does Dr. Megan Jean Walker prescribe most?

In 2024 Medicare Part D data, Dr. Walker's most prescribed drugs by claims were Gavilyte-G, Omeprazole and Famotidine.

Has Dr. Megan Jean Walker received payments from drug or device companies?

CMS Open Payments shows $872 in general payments to Dr. Walker from 9 companies from 2018 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.

How long has Dr. Megan Jean Walker been practicing?

Dr. Walker graduated from medical school in 2012, 14 years ago.

Does Dr. Megan Jean Walker do research?

Dmand AI links 4 publications to Dr. Walker, published from 2019 to 2022.

Who does Dr. Megan Jean Walker publish with?

Dr. Walker's most frequent co-authors are Monika Fischer, MD (2 shared papers), Nicholas R. Crews, MD (1 shared paper) and Nabil F. Fayad, MD (1 shared paper).

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