Dr. Zachary Thomas Walker, MD
- Part D claims, 2024
- 68
- Industry payments
- $305
- State license
- 1
- Year NPI issued
- 2024
- Practice address
- 1215 E Michigan Ave, Lansing, MI 48912-1896
- Practice phone
- Call (517) 364-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Walker's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Zachary Thomas Walker is a general surgeon in Lansing, Michigan
Dr. Walker practices in Lansing, Michigan.
Dr. Walker's NPI, 1821849373, was assigned on April 1, 2024. Dr. Walker holds Michigan license 4351053721.
- NPI
- 1821849373NPI Registry (opens in a new tab)
- NPI enumeration date
- April 1, 2024
- NPI status
- Active
- Practice phone
- (517) 364-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Zachary Thomas Walker's practice address is in Lansing, Michigan
Dr. Walker's practice address in the NPI Registry is 1215 E Michigan Ave, Lansing, MI 48912-1896. The practice phone is (517) 364-1000.
- NPI Registry address1215 E Michigan Ave, Lansing, MI 48912-1896Phone(517) 364-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Zachary Thomas Walker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walker practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Walker's practice | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Zachary Thomas Walker is one of 1,095 general surgeons in Michigan
Surgery is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Walker is licensed in Michigan.
Specialties and state licenses
- Surgery, MichiganPrimary
General surgeons near Dr. Walker
Counts of general surgeons 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 Thomas Walker's patients have a median age of 67
Across all payers, Dmand AI patient panel data puts Dr. Walker's median patient age at 67, with 63% women.
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 67
Patient panel by sex, all payers
- Women63%
- Men38%
Source: Dmand AI Patient Panel Data
Dr. Zachary Thomas Walker wrote 68 Medicare Part D claims in 2024
In 2024, Dr. Walker wrote 68 Medicare Part D claims for 38 patients. 97% of them were for generic drugs. CMS names the drug for 29 of them, across 2 drugs with 11 or more claims each, at $270 in total drug cost.
Dr. Walker's Part D claims by kind of drug, 2024
- Generic66 claims97%
- Brand-name and other2 claims3%
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
- Opioids35%24 of 68 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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Zachary Thomas Walker received $305 in industry payments from 2024 to 2025
CMS Open Payments shows 4 general payments to Dr. Walker from 4 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $139.
General payments to Dr. Walker by program year, 2024 to 2025
Companies that paid Dr. Walker the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Zachary Thomas 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Thomas 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 Thomas Walker's NPI number?
Dr. Zachary Thomas Walker's NPI number is 1821849373. It was assigned on April 1, 2024, and it is active in the NPI Registry.
What kind of doctor is Dr. Zachary Thomas Walker?
Dr. Zachary Thomas Walker is a general surgeon in Lansing, Michigan. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Zachary Thomas Walker practice?
Dr. Walker practices at 1215 E Michigan Ave, Lansing, MI 48912-1896.
What is Dr. Zachary Thomas Walker's office phone number?
The practice phone on file for Dr. Walker is (517) 364-1000.
What is Dr. Zachary Thomas Walker's medical license number?
Dr. Walker holds Michigan license 4351053721.
What drugs does Dr. Zachary Thomas Walker prescribe most?
In 2024 Medicare Part D data, Dr. Walker's most prescribed drugs by claims were Oxycodone HCl and Ondansetron ODT.
Has Dr. Zachary Thomas Walker received payments from drug or device companies?
CMS Open Payments shows $305 in general payments to Dr. Walker from 4 companies from 2024 to 2025. The largest total came from Medtronic, Inc.
How long has Dr. Zachary Thomas Walker been practicing?
Dr. Walker's NPI was assigned in 2024.
Selling to surgery practices?
See general surgeons in Michigan by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card