Dr. Zachary John Walker, MD
- Medicare services, 2024
- 603
- Medicare patients, 2024
- 358
- Part D claims, 2024
- 186
- Hospital affiliations
- 4
- Medical groups
- 2
- Practice address
- 600 E Blvd, Elkhart, IN 46514
- Practice phone
- Call (574) 294-2621
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Zachary John Walker is an emergency medicine physician in Elkhart, Indiana
Dr. Walker practices at Elkhart General Hospital in Elkhart, Indiana, part of Beacon Health System.
Dr. Walker's NPI, 1811524820, was assigned on March 27, 2020. Dr. Walker graduated from Ohio State University College of Medicine in 2020. Dr. Walker holds Indiana license 01089214A.
- NPI
- 1811524820NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2062834864
- NPI enumeration date
- March 27, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (574) 294-2621
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Zachary John Walker practices at Elkhart General Hospital in Elkhart, Indiana
Dr. Walker's primary practice is Elkhart General Hospital, at 600 E Blvd, Elkhart, IN 46514 in Elkhart County. The practice phone is (574) 294-2621.
- Elkhart General Hospital600 E Blvd, Elkhart, IN 46514 · Elkhart CountyPhone(574) 294-2621
Source: Dmand AI Affiliation Data
Dr. Zachary John Walker is affiliated with 4 sites of care and 2 medical groups
Dr. Walker's primary practice is Elkhart General Hospital in Elkhart, Indiana, part of Beacon Health System. Dr. Walker is also affiliated with MetroHealth Main Campus Medical Center. The medical group on file is Vituity. Dmand AI also links Dr. Walker to 2 more hospitals and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Zachary John 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.
| Site | EHR vendor and product |
|---|---|
| Elkhart General Hospital | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Zachary John Walker is one of 1,275 emergency medicine physicians in Indiana
Emergency medicine is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Walker is licensed in Indiana.
Specialties and state licenses
- Emergency medicine, IndianaPrimary
Emergency medicine physicians near Dr. Walker
Counts of emergency medicine physicians 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. Zachary John Walker billed Medicare for 603 services in 2024
CMS data shows 603 Medicare services from Dr. Walker across 5 procedure codes in 2024, for 358 Medicare patients. Medicare paid $44,882 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Walker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1732024: 357106%
- Tests and treatments
- 2023: 972024: 246154%
Dr. Walker compared with the Indiana median for emergency medicine physicians, 2024
- Dr. Walker
- Indiana median
- Medicare services
- 603vs 30498% above
- Medicare patients
- 358vs 27729% above
- Part D claims
- 102vs 9211% above
Medians across 1,276 emergency medicine physicians 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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Zachary John Walker treated 358 Medicare patients in 2024, average age 74
CMS counts 358 Medicare patients who saw Dr. Walker in 2024. The largest group is 75 to 84, with 117 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 28% are also on Medicaid. Their average risk score is 2.04, 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 69, with 52% women.
Dr. Walker's Medicare patients by age, 2024
Dr. Walker's Medicare patients by sex, 2024
- Women20156%
- Men15744%
Chronic conditions among Dr. Walker's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease48%
- Arthritis47%
- Chronic kidney disease46%
- Anxiety44%
- Mood disorders39%
- Diabetes37%
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 69
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Zachary John Walker wrote 186 Medicare Part D claims in 2024
In 2024, Dr. Walker wrote 186 Medicare Part D claims for 145 patients. 92% of them were for generic drugs. CMS names the drug for 102 of them, across 6 drugs with 11 or more claims each, at $583 in total drug cost.
Dr. Walker's Part D claims by kind of drug, 2024
- Generic171 claims92%
- Brand-name and other15 claims8%
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
- Opioids10%18 of 186 claims
- Antibiotics40%75 of 186 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
How Dr. Zachary John Walker takes part in Medicare
Dr. Walker accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Zachary John Walker graduated from Ohio State University College of Medicine
Dr. Walker graduated from Ohio State University College of Medicine in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Zachary John Walker's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Zachary John 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. Zachary John Walker's NPI number?
Dr. Zachary John Walker's NPI number is 1811524820. It was assigned on March 27, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Zachary John Walker?
Dr. Zachary John Walker is an emergency medicine physician in Elkhart, Indiana. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Zachary John Walker practice?
Dr. Walker practices at 600 E Blvd, Elkhart, IN 46514. Dr. Walker's primary practice is Elkhart General Hospital in Elkhart, Indiana, part of Beacon Health System. Dmand AI also links Dr. Walker to 2 hospitals and 1 medical group.
What is Dr. Zachary John Walker's office phone number?
The practice phone on file for Dr. Walker is (574) 294-2621.
What is Dr. Zachary John Walker's medical license number?
Dr. Walker holds Indiana license 01089214A.
Which hospitals is Dr. Zachary John Walker affiliated with?
Dr. Walker practices at Elkhart General Hospital in Elkhart, Indiana. Dr. Walker is also affiliated with MetroHealth Main Campus Medical Center. Dmand AI links Dr. Walker to 2 more hospitals.
What medical group is Dr. Zachary John Walker part of?
Dr. Walker is linked to Vituity. Dmand AI links Dr. Walker to 1 more medical group.
Does Dr. Zachary John Walker accept Medicare?
Yes. CMS data shows Dr. Walker billed Medicare for 603 services in 2024, and Dr. Walker accepts Medicare assignment.
How many Medicare patients does Dr. Zachary John Walker see?
CMS counts 358 Medicare patients who saw Dr. Walker in 2024, with an average age of 74.
What services does Dr. Zachary John Walker bill to Medicare?
In 2024, Dr. Walker's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and critical care (99291).
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Where did Dr. Zachary John Walker go to medical school?
Dr. Walker graduated from Ohio State University College of Medicine in 2020.
What drugs does Dr. Zachary John Walker prescribe most?
In 2024 Medicare Part D data, Dr. Walker's most prescribed drugs by claims were Cephalexin, Ondansetron ODT and Oxycodone HCl.
How long has Dr. Zachary John Walker been practicing?
Dr. Walker graduated from medical school in 2020, 6 years ago.
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