Dr. Ted B. Walker, MD

  • Saint Louis, MO
  • Gastroenterologist
NPI1467833301PAC ID3476867359
Medicare services, 2024
445
Medicare patients, 2024
305
Part D claims, 2024
1,239
Publications
6
Hospital affiliations
3
Practice address
10010 Kennerly Road, Saint Louis, MO 63128
Practice phone
Call (314) 525-1000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Mercy Hospital South

Hospital · Saint Louis, Missouri

See all 5 affiliations

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Dr. Ted B. Walker is a gastroenterologist in Saint Louis, Missouri

Dr. Walker practices at Mercy Hospital South in Saint Louis, Missouri, part of Mercy.

Dr. Walker's NPI, 1467833301, was assigned on June 16, 2015. Dr. Walker graduated from University of Texas Medical School at Houston in 2015. Dr. Walker holds Missouri license 2019033209.

NPI and contact details
Medicare PAC ID
3476867359
NPI enumeration date
June 16, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(314) 525-1000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
37
Medical school graduation
2015

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

Dr. Ted B. Walker practices at Mercy Hospital South in Saint Louis, Missouri

Dr. Walker's primary practice is Mercy Hospital South, at 10010 Kennerly Road, Saint Louis, MO 63128 in St. Louis County. The practice phone is (314) 525-1000.

  • Mercy Hospital South
    10010 Kennerly Road, Saint Louis, MO 63128 · St. Louis CountyPhone(314) 525-1000

Source: Dmand AI Affiliation Data

Dr. Ted B. Walker is affiliated with 4 sites of care and 1 medical group

Dr. Walker's primary practice is Mercy Hospital South in Saint Louis, Missouri, part of Mercy. Dr. Walker is also affiliated with Mercy Hospital Jefferson. The medical group on file is Mercy Clinic Gastroenterology. Dmand AI also links Dr. Walker to 1 more hospital and 1 group practice or clinic, each named with a free account.

See all 5 affiliations for Dr. Walker

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

Dmand AI tracks the EHR system at Dr. Ted B. Walker's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walker practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Mercy Hospital SouthAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Ted B. Walker is one of 329 gastroenterologists in Missouri

Gastroenterology is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Walker is licensed in Missouri.

Specialties and state licenses

  • Gastroenterology, MissouriPrimaryLicense 2019033209 · 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. Ted B. Walker billed Medicare for 445 services in 2024

CMS data shows 445 Medicare services from Dr. Walker across 13 procedure codes in 2024, for 305 Medicare patients. Medicare paid $52,346 for them.

Medicare services, 2024445
Medicare patients305
Paid by Medicare$52,346
Procedure codes13

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

  • 2023
  • 2024
Surgery
2023: 2512024: 2395%
Office and hospital visits
2023: 2162024: 18813%
Other services
2023: 212024: 1814%

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

  • In an office6515%
  • In a facility38085%

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

  • Dr. Walker
  • Missouri median
Medicare services
445vs 4167% above
Medicare patients
305vs 296Close to median
Part D claims
1,093vs 4342.5 times

Medians across 337 gastroenterologists in Missouri 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. Ted B. Walker treated 305 Medicare patients in 2024, average age 74

CMS counts 305 Medicare patients who saw Dr. Walker in 2024. The largest group is 65 to 74, with 123 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.83, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Walker's median patient age at 68, with 54% women.

Medicare patients, 2024305
Average age74
Average risk score1.83
Also on Medicaid12%

Dr. Walker's Medicare patients by age, 2024

Dr. Walker's Medicare patients by sex, 2024

  • Women15751%
  • Men14849%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis54%
  4. Ischemic heart disease46%
  5. Chronic kidney disease43%
  6. Diabetes43%
  7. Mood disorders39%
  8. Anxiety36%

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 68

Patient panel by sex, all payers

  • Women54%
  • Men46%

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

Dr. Ted B. Walker wrote 1,239 Medicare Part D claims in 2024

In 2024, Dr. Walker wrote 1,239 Medicare Part D claims for 563 patients. 81% of them were for generic drugs. CMS names the drug for 1,093 of them, across 17 drugs with 11 or more claims each, at $127,210 in total drug cost. In 2023, CMS named 888 claims across 15 drugs.

Part D claims, 20241,239
Drugs named by CMS17
Total drug cost$127,210
Part D patients563

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

  • Generic1,005 claims81%
  • Brand-name234 claims19%

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.

Drug classes CMS tracks in Dr. Walker's Part D claims, 2024

  • Antibiotics2%19 of 1,239 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 8882024: 1,09323%

Drugs named by CMS: 17 in 2024, 15 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. Ted B. Walker ranks in the 77th percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare

Dr. Walker accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 101 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Walker, more than 77% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Walker ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
77th percentile101 procedures
Colonoscopy
66th percentile57 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. Ted B. Walker has 6 publications on record

Dmand AI links 6 papers to Dr. Walker, published from 2017 to 2023. 2017 was the busiest year, with 2. The most frequent topics are Colonoscopy. Dr. Walker has published most often in Dig Dis Sci. Dr. Walker's most frequent co-authors are Kevin P. Garza, MD, Chandra Prakash Gyawali, MD and Tricia Ann Hengehold, MD.

Papers6
Years published2017 to 2023

Dr. Walker's papers by year, 2017 to 2023

Topics Dr. Walker writes about most

  • Colonoscopy

Dr. Walker's most frequent co-authors

Recent publications by Dr. Walker

See all 6 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. Ted B. Walker received $9,185 in industry payments from 2018 to 2025

CMS Open Payments shows 448 general payments to Dr. Walker from 37 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 99% of the total. Abbvie Inc. paid the most, $1,748.

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

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

$9.2Kin total
  • Food and beverage$9,06899%
  • Education$1171%

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. Ted B. Walker graduated from University of Texas Medical School at Houston

Dr. Walker graduated from University of Texas Medical School at Houston in 2015.

  1. Medical schoolUniversity of Texas Medical School at Houston

Source: Dmand AI Professional Profile Data

Sources for Dr. Ted B. 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. Ted B. 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. Ted B. Walker's NPI number?

Dr. Ted B. Walker's NPI number is 1467833301. It was assigned on June 16, 2015, and it is active in the NPI Registry.

What kind of doctor is Dr. Ted B. Walker?

Dr. Ted B. Walker is a gastroenterologist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Ted B. Walker practice?

Dr. Walker practices at 10010 Kennerly Road, Saint Louis, MO 63128. Dr. Walker's primary practice is Mercy Hospital South in Saint Louis, Missouri, part of Mercy. Dmand AI also links Dr. Walker to 1 hospital and 1 group practice or clinic.

What is Dr. Ted B. Walker's office phone number?

The practice phone on file for Dr. Walker is (314) 525-1000.

What is Dr. Ted B. Walker's medical license number?

Dr. Walker holds Missouri license 2019033209.

Which hospitals is Dr. Ted B. Walker affiliated with?

Dr. Walker practices at Mercy Hospital South in Saint Louis, Missouri. Dr. Walker is also affiliated with Mercy Hospital Jefferson. Dmand AI links Dr. Walker to 1 more hospital.

What medical group is Dr. Ted B. Walker part of?

Dr. Walker is linked to Mercy Clinic Gastroenterology.

Does Dr. Ted B. Walker accept Medicare?

Yes. CMS data shows Dr. Walker billed Medicare for 445 services in 2024, and Dr. Walker accepts Medicare assignment.

How many Medicare patients does Dr. Ted B. Walker see?

CMS counts 305 Medicare patients who saw Dr. Walker in 2024, with an average age of 74.

What services does Dr. Ted B. Walker bill to Medicare?

In 2024, Dr. Walker's most billed Medicare services were surgery: digestive system (45385), hospital inpatient care (99223) and surgery: digestive system (43239).

Show 6 more questionsShow fewer questions

Where did Dr. Ted B. Walker go to medical school?

Dr. Walker graduated from University of Texas Medical School at Houston in 2015.

What drugs does Dr. Ted B. Walker prescribe most?

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

Has Dr. Ted B. Walker received payments from drug or device companies?

CMS Open Payments shows $9,185 in general payments to Dr. Walker from 37 companies from 2018 to 2025. The largest total came from Abbvie Inc.

How long has Dr. Ted B. Walker been practicing?

Dr. Walker graduated from medical school in 2015, 11 years ago.

Does Dr. Ted B. Walker do research?

Dmand AI links 6 publications to Dr. Walker, published from 2017 to 2023.

Who does Dr. Ted B. Walker publish with?

Dr. Walker's most frequent co-authors are Kevin P. Garza, MD (2 shared papers), Chandra Prakash Gyawali, MD (2 shared papers) and Tricia Ann Hengehold, MD (2 shared papers).

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