James Donald Walker, DDS
- Part D claims, 2024
- 89
- Industry payments
- $17
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Practice address
- 601 Tama St, Marion, IA 52302-4804
- Practice phone
- Call (319) 366-2451
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Thomas Grimes
Dental practice · Marion, Iowa
Find James 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.
James Donald Walker is a general practice dentistry in Marion, Iowa
James Walker practices at Thomas Grimes in Marion, Iowa.
James Walker's NPI, 1194045054, was assigned on June 2, 2010. James Walker holds Iowa license 08786.
- NPI
- 1194045054NPI Registry (opens in a new tab)
- NPI enumeration date
- June 2, 2010
- NPI status
- Active
- Practice phone
- (319) 366-2451
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
James Donald Walker practices at Thomas Grimes in Marion, Iowa
James Walker's primary practice is Thomas Grimes, at 601 Tama St, Marion, IA 52302-4804. The practice phone is (319) 366-2451.
- Thomas Grimes601 Tama St, Marion, IA 52302-4804Phone(319) 366-2451
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
James Donald Walker is affiliated with 2 sites of care and 1 medical group
James Walker's primary practice is Thomas Grimes in Marion, Iowa. Dmand AI also links James Walker to 1 physician office and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at James Donald Walker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where James Walker practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Thomas Grimes | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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James Donald Walker is one of 699 general practice dentistrys in Iowa
General practice is James Walker's primary specialty in the NPI Registry, under taxonomy code 1223G0001X. James Walker is licensed in Iowa.
Specialties and state licenses
- General practice dentistry, IowaPrimary
General practice dentistrys near James Walker
Counts of general practice dentistrys 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
James Donald Walker wrote 89 Medicare Part D claims in 2024
In 2024, James Walker wrote 89 Medicare Part D claims for 57 patients. 92% of them were for generic drugs.
James Walker's Part D claims by kind of drug, 2024
- Generic82 claims92%
- Brand-name and other7 claims8%
Drug classes CMS tracks in James Walker's Part D claims, 2024
- Antibiotics82%73 of 89 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
James Donald Walker received $17 in industry payments in 2025
CMS Open Payments shows 1 general payment to James Walker from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Hu-Friedy Mfg. Co., LLC paid the most, $17.
Companies that paid James Walker the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for James Donald 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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Part D prescribing | 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 James Donald 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 James Donald Walker's NPI number?
James Donald Walker's NPI number is 1194045054. It was assigned on June 2, 2010, and it is active in the NPI Registry.
What does James Donald Walker specialize in?
James Donald Walker is a general practice dentistry in Marion, Iowa. The primary specialty in the NPI Registry is General Practice Dentistry (taxonomy code 1223G0001X).
Where does James Donald Walker practice?
James Walker practices at 601 Tama St, Marion, IA 52302-4804. James Walker's primary practice is Thomas Grimes in Marion, Iowa. Dmand AI also links James Walker to 1 physician office and 1 medical group.
What is James Donald Walker's office phone number?
The practice phone on file for James Walker is (319) 366-2451.
What is James Donald Walker's medical license number?
James Walker holds Iowa license 08786.
Has James Donald Walker received payments from drug or device companies?
CMS Open Payments shows $17 in general payments to James Walker from 1 company from 2025 to 2025. The largest total came from Hu-Friedy Mfg. Co., LLC.
How long has James Donald Walker been practicing?
James Walker's NPI was assigned in 2010.
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