Dr. David K. Walker, MD
- Medicare services, 2019
- 31
- Part D claims, 2017
- 165
- Industry payments
- $251
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 200 Hygeia Dr, Newark, DE 19713
- Practice phone
- Call (302) 428-2100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Christianacare Health Services
Newark, Delaware
Find Dr. Walker's professional email, personal email and mobile number
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Dr. David K. Walker is a psychiatrist in Newark, Delaware
Dr. Walker practices at Christianacare Health Services in Newark, Delaware.
Dr. Walker's NPI, 1003994450, was assigned on November 2, 2006. Dr. Walker holds West Virginia license 9895.
- NPI
- 1003994450NPI Registry (opens in a new tab)
- NPI enumeration date
- November 2, 2006
- NPI status
- Active
- Practice phone
- (302) 428-2100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. David K. Walker practices at Christianacare Health Services in Newark, Delaware
Dr. Walker's primary practice is Christianacare Health Services, at 200 Hygeia Dr, Newark, DE 19713 in New Castle County. The practice phone is (302) 428-2100.
- Christianacare Health Services200 Hygeia Dr, Newark, DE 19713 · New Castle CountyPhone(302) 428-2100
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David K. Walker is affiliated with 1 site of care
Dr. Walker's primary practice is Christianacare Health Services in Newark, Delaware.
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. David K. 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 |
|---|---|
| Christianacare Health Services | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David K. Walker is one of 139 psychiatrists in Delaware
Psychiatry is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Walker is licensed in West Virginia.
Specialties and state licenses
- Psychiatry, West VirginiaPrimary
Psychiatrists near Dr. Walker
Counts of psychiatrists 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. David K. Walker billed Medicare for 31 services in 2019
CMS data shows 31 Medicare services from Dr. Walker across 1 procedure code in 2019. Medicare paid $845 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Walker's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 282019: 3111%
Dr. Walker compared with the Delaware median for psychiatrists, 2019
- Dr. Walker
- Delaware median
- Medicare services
- 31vs 21886% below
- Part D claims
- 165vs 19817% below
Medians across 145 psychiatrists in Delaware with Dmand AI profiles that report each measure.
Dr. Walker's most billed Medicare procedure codes, 2019
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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Walker and other psychiatrists in Delaware.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David K. Walker's patients have a median age of 84
Across all payers, Dmand AI patient panel data puts Dr. Walker's median patient age at 84, with 100% 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 84
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. David K. Walker wrote 165 Medicare Part D claims in 2017
In 2017, Dr. Walker wrote 165 Medicare Part D claims. They cover 9 drugs, with $4,010 in total drug cost.
Dr. Walker's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. David K. Walker received $251 in industry payments from 2019 to 2025
CMS Open Payments shows 16 general payments to Dr. Walker from 6 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 100% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $64.
General payments to Dr. Walker by program year, 2019 to 2025
Companies that paid Dr. Walker the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. David K. 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 |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. David K. 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. David K. Walker's NPI number?
Dr. David K. Walker's NPI number is 1003994450. It was assigned on November 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David K. Walker?
Dr. David K. Walker is a psychiatrist in Newark, Delaware. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. David K. Walker practice?
Dr. Walker practices at 200 Hygeia Dr, Newark, DE 19713. Dr. Walker's primary practice is Christianacare Health Services in Newark, Delaware.
What is Dr. David K. Walker's office phone number?
The practice phone on file for Dr. Walker is (302) 428-2100.
What is Dr. David K. Walker's medical license number?
Dr. Walker holds West Virginia license 9895.
Does Dr. David K. Walker accept Medicare?
Yes. CMS data shows Dr. Walker billed Medicare for 31 services in 2019.
What services does Dr. David K. Walker bill to Medicare?
In 2019, Dr. Walker's most billed Medicare services were hospital inpatient care (99231).
What drugs does Dr. David K. Walker prescribe most?
In 2017 Medicare Part D data, Dr. Walker's most prescribed drugs by claims were Mirtazapine, Escitalopram Oxalate and Bupropion XL.
Has Dr. David K. Walker received payments from drug or device companies?
CMS Open Payments shows $251 in general payments to Dr. Walker from 6 companies from 2019 to 2025. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. David K. Walker been practicing?
Dr. Walker's NPI was assigned in 2006.
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