Dr. Derrel V. Walker, MD
- Medicare services, 2021
- 727
- Part D claims, 2024
- 375
- Hospital affiliations
- 1
- Industry payments
- $92
- Medical groups
- 2
- Practice address
- 1351 West Pine Avenue, Meridian, ID 83642
- Practice phone
- Call (208) 888-7049
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Creekside Transitional Care & Rehabilitation
Skilled Nursing Facility · Meridian, Idaho
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. Derrel V. Walker is an internist in Meridian, Idaho
Dr. Walker practices at Creekside Transitional Care & Rehabilitation in Meridian, Idaho.
Dr. Walker's NPI, 1013208495, was assigned on April 20, 2011. Dr. Walker holds Idaho license M-12121.
- NPI
- 1013208495NPI Registry (opens in a new tab)
- NPI enumeration date
- April 20, 2011
- NPI status
- Active
- Practice phone
- (208) 888-7049
- 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 Affiliation Data
Dr. Derrel V. Walker practices at Creekside Transitional Care & Rehabilitation in Meridian, Idaho
Dr. Walker's primary practice is Creekside Transitional Care & Rehabilitation, at 1351 West Pine Avenue, Meridian, ID 83642 in Ada County. The practice phone is (208) 888-7049.
- Creekside Transitional Care & Rehabilitation1351 West Pine Avenue, Meridian, ID 83642 · Ada CountyPhone(208) 888-7049
Source: Dmand AI Affiliation Data
Dr. Derrel V. Walker is affiliated with 3 sites of care and 2 medical groups
Dr. Walker's primary practice is Creekside Transitional Care & Rehabilitation in Meridian, Idaho. Dr. Walker is also affiliated with Saint Alphonsus Regional Medical Center. The medical group on file is Finding Home Medical Services. Dmand AI also links Dr. Walker to 1 more senior living community 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. Derrel V. Walker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walker practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Creekside Transitional Care & Rehabilitation | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Derrel V. Walker is one of 419 internists in Idaho
Internal medicine is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Walker is licensed in Idaho.
Specialties and state licenses
- Internal medicine, IdahoPrimary
Internists near Dr. Walker
Counts of internists 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. Derrel V. Walker billed Medicare for 727 services in 2021
CMS data shows 727 Medicare services from Dr. Walker across 4 procedure codes in 2021. Medicare paid $70,377 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Walker's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 7142021: 7272%
- Other services
- 2020: 152021: 0100%
Dr. Walker compared with the Idaho median for internists, 2021
- Dr. Walker
- Idaho median
- Medicare services
- 727vs 42571% above
- Part D claims
- 181vs 11853% above
Medians across 407 internists in Idaho with Dmand AI profiles that report each measure.
Dr. Walker's most billed Medicare procedure codes, 2021
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 internists in Idaho.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Derrel V. 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 58% 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
- Women58%
- Men41%
Source: Dmand AI Patient Panel Data
Dr. Derrel V. Walker wrote 375 Medicare Part D claims in 2024
In 2024, Dr. Walker wrote 375 Medicare Part D claims for 55 patients. 85% of them were for generic drugs. CMS names the drug for 181 of them, across 11 drugs with 11 or more claims each, at $10,529 in total drug cost. In 2023, CMS named 206 claims across 16 drugs.
Dr. Walker's Part D claims by kind of drug, 2024
- Generic317 claims85%
- Brand-name and other58 claims15%
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
- Opioids4%14 of 375 claims
- Antibiotics6%24 of 375 claims
- Antipsychotics, patients 65 and over3%13 of 375 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: 2062024: 18112%
Drugs named by CMS: 11 in 2024, 16 in 2023.
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
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Dr. Derrel V. Walker received $92 in industry payments from 2018 to 2020
CMS Open Payments shows 4 general payments to Dr. Walker from 3 drug and device companies from 2018 to 2020. Food and beverage make up the largest share, 100% of the total. Taiho Oncology, Inc. paid the most, $49.
General payments to Dr. Walker by program year, 2018 to 2020
Companies that paid Dr. Walker the most, 2018 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Derrel V. 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 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. Derrel V. 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. Derrel V. Walker's NPI number?
Dr. Derrel V. Walker's NPI number is 1013208495. It was assigned on April 20, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Derrel V. Walker?
Dr. Derrel V. Walker is an internist in Meridian, Idaho. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Derrel V. Walker practice?
Dr. Walker practices at 1351 West Pine Avenue, Meridian, ID 83642. Dr. Walker's primary practice is Creekside Transitional Care & Rehabilitation in Meridian, Idaho. Dmand AI also links Dr. Walker to 1 senior living community and 1 medical group.
What is Dr. Derrel V. Walker's office phone number?
The practice phone on file for Dr. Walker is (208) 888-7049.
What is Dr. Derrel V. Walker's medical license number?
Dr. Walker holds Idaho license M-12121.
Which hospitals is Dr. Derrel V. Walker affiliated with?
Dr. Walker is affiliated with Saint Alphonsus Regional Medical Center.
What medical group is Dr. Derrel V. Walker part of?
Dr. Walker is linked to Finding Home Medical Services. Dmand AI links Dr. Walker to 1 more medical group.
Does Dr. Derrel V. Walker accept Medicare?
Yes. CMS data shows Dr. Walker billed Medicare for 727 services in 2021.
What services does Dr. Derrel V. Walker bill to Medicare?
In 2021, Dr. Walker's most billed Medicare services were nursing facility care (99310), nursing facility care (99306) and nursing facility care (99309).
What drugs does Dr. Derrel V. Walker prescribe most?
In 2024 Medicare Part D data, Dr. Walker's most prescribed drugs by claims were Levothyroxine Sodium, Ciprofloxacin HCl and Atorvastatin Calcium.
Has Dr. Derrel V. Walker received payments from drug or device companies?
CMS Open Payments shows $92 in general payments to Dr. Walker from 3 companies from 2018 to 2020. The largest total came from Taiho Oncology, Inc.
How long has Dr. Derrel V. Walker been practicing?
Dr. Walker's NPI was assigned in 2011.
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