Dr. David C. Walker, DO
- Medicare services, 2024
- 4,782
- Medicare patients, 2024
- 714
- Part D claims, 2024
- 11,451
- MIPS score, 2024
- 87
- Hospital affiliations
- 5
- Practice address
- 1333 W 5th St Ste 200 Suite 200, Sheridan, WY 82801
- Practice phone
- Call (307) 673-3181
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sheridan Memorial Clinics
Multi-specialty group site · Sheridan, Wyoming
Find Dr. Walker's professional email, personal email and mobile number
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Dr. David C. Walker is an internist in Sheridan, Wyoming
Dr. Walker practices at Sheridan Memorial Clinics in Sheridan, Wyoming.
Dr. Walker's NPI, 1639142508, was assigned on February 9, 2006. Dr. Walker graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 1994. Dr. Walker holds Wyoming license TL2282.
- NPI
- 1639142508NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7719897636
- NPI enumeration date
- February 9, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (307) 673-3181
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David C. Walker practices at Sheridan Memorial Clinics in Sheridan, Wyoming
Dr. Walker's primary practice is Sheridan Memorial Clinics, at 1333 W 5th St Ste 200 Suite 200, Sheridan, WY 82801. The practice phone is (307) 673-3181.
- Sheridan Memorial Clinics1333 W 5th St Ste 200 Suite 200, Sheridan, WY 82801Phone(307) 673-3181
Source: Dmand AI Affiliation Data
Dr. David C. Walker is affiliated with 8 sites of care and 2 medical groups
Dr. Walker's primary practice is Sheridan Memorial Clinics in Sheridan, Wyoming. Dr. Walker is also affiliated with Sheridan Memorial Hospital. The medical group on file is Sheridan Memorial Hospital. Dmand AI also links Dr. Walker to 4 more hospitals, 1 group practice or clinic, 1 home health agency and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. David C. Walker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walker practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sheridan Memorial Clinics | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David C. Walker is one of 126 internists in Wyoming
Internal medicine is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Walker's licenses on file in 2 states: Wyoming and South Dakota.
Specialties and state licenses
- Internal medicine, WyomingPrimary
- South Dakota license
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. David C. Walker billed Medicare for 4,782 services in 2024
CMS data shows 4,782 Medicare services from Dr. Walker across 26 procedure codes in 2024, for 714 Medicare patients. Medicare paid $207,489 for them.
Dr. Walker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 3,5462024: 2,57028%
- Office and hospital visits
- 2023: 1,0342024: 1,0043%
- Tests and treatments
- 2023: 5822024: 51112%
- Other services
- 2023: 3042024: 36119%
- Lab and pathology
- 2023: 3012024: 21030%
- Surgery
- 2023: 1052024: 12620%
Where Dr. Walker's Medicare services took place, 2024
- In an office4,44193%
- In a facility3417%
Dr. Walker compared with the Wyoming median for internists, 2024
- Dr. Walker
- Wyoming median
- Medicare services
- 4,782vs 5438.8 times
- Medicare patients
- 714vs 2512.8 times
- Part D claims
- 10,590vs 25641.4 times
Medians across 132 internists in Wyoming 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Walker and other internists in Wyoming.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David C. Walker treated 714 Medicare patients in 2024, average age 76
CMS counts 714 Medicare patients who saw Dr. Walker in 2024. The largest group is 75 to 84, with 284 patients. 66% of them have high blood pressure, and 54% have high cholesterol. 7% are also on Medicaid. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Walker's median patient age at 74, with 44% women.
Dr. Walker's Medicare patients by age, 2024
Dr. Walker's Medicare patients by sex, 2024
- Women37152%
- Men34348%
Chronic conditions among Dr. Walker's Medicare patients, 2024
- High blood pressure66%
- High cholesterol54%
- Arthritis36%
- Atrial fibrillation24%
- Ischemic heart disease24%
- Diabetes21%
- Mood disorders18%
- Anxiety16%
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 74
Patient panel by sex, all payers
- Women44%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David C. Walker wrote 11,451 Medicare Part D claims in 2024
In 2024, Dr. Walker wrote 11,451 Medicare Part D claims for 607 patients. 84% of them were for generic drugs. CMS names the drug for 10,590 of them, across 152 drugs with 11 or more claims each, at $973,547 in total drug cost. In 2023, CMS named 9,826 claims across 159 drugs.
Dr. Walker's Part D claims by kind of drug, 2024
- Generic9,664 claims84%
- Brand-name1,718 claims15%
- Other69 claims1%
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
- Opioids2%278 of 11,451 claims
- Antibiotics2%246 of 11,451 claims
- Antipsychotics, patients 65 and over3%300 of 11,451 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: 9,8262024: 10,5908%
Drugs named by CMS: 152 in 2024, 159 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
Dr. David C. Walker scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Walker for performance year 2024, reported as part of a group. Dr. Walker accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Walker as offering telehealth. CMS counts 63 procedures of colonoscopy by Dr. Walker, more than 69% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Walker's MIPS scores, performance year 2024
- 87of 100Final score
- 82.1of 100Quality
- 98of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Walker ranks in Medicare procedure volume
- Colonoscopy
- 69th percentile63 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 55th percentile28 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. David C. Walker received $3,987 in industry payments from 2016 to 2025
CMS Open Payments shows 227 general payments to Dr. Walker from 30 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $930.
General payments to Dr. Walker by program year, 2016 to 2025
General payments to Dr. Walker by kind, 2016 to 2025
- Food and beverage$3,972100%
- Education$150%
Companies that paid Dr. Walker the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David C. Walker graduated from Des Moines University of Osteopathic Medicine and Health Sciences
Dr. Walker graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David C. 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 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (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. David C. 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 C. Walker's NPI number?
Dr. David C. Walker's NPI number is 1639142508. It was assigned on February 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David C. Walker?
Dr. David C. Walker is an internist in Sheridan, Wyoming. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David C. Walker practice?
Dr. Walker practices at 1333 W 5th St Ste 200 Suite 200, Sheridan, WY 82801. Dr. Walker's primary practice is Sheridan Memorial Clinics in Sheridan, Wyoming. Dmand AI also links Dr. Walker to 4 hospitals, 1 group practice or clinic, 1 home health agency and 1 medical group.
What is Dr. David C. Walker's office phone number?
The practice phone on file for Dr. Walker is (307) 673-3181.
What is Dr. David C. Walker's medical license number?
Dr. Walker holds Wyoming license TL2282, one of the licenses on file in 2 states.
Which states has Dr. David C. Walker been licensed in?
Dmand AI has state licenses on file for Dr. Walker in Wyoming and South Dakota.
Which hospitals is Dr. David C. Walker affiliated with?
Dr. Walker is affiliated with Sheridan Memorial Hospital. Dmand AI links Dr. Walker to 4 more hospitals.
What medical group is Dr. David C. Walker part of?
Dr. Walker is linked to Sheridan Memorial Hospital. Dmand AI links Dr. Walker to 1 more medical group.
Does Dr. David C. Walker accept Medicare?
Yes. CMS data shows Dr. Walker billed Medicare for 4,782 services in 2024, and Dr. Walker accepts Medicare assignment.
Does Dr. David C. Walker offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Walker as offering telehealth services.
Show 7 more questionsShow fewer questions
What is Dr. David C. Walker's MIPS score?
Dr. Walker's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
How many Medicare patients does Dr. David C. Walker see?
CMS counts 714 Medicare patients who saw Dr. Walker in 2024, with an average age of 76.
What services does Dr. David C. Walker bill to Medicare?
In 2024, Dr. Walker's most billed Medicare services were injected or infused drug (J0897), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. David C. Walker go to medical school?
Dr. Walker graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 1994.
What drugs does Dr. David C. Walker prescribe most?
In 2024 Medicare Part D data, Dr. Walker's most prescribed drugs by claims were Levothyroxine Sodium, Pantoprazole Sodium and Amlodipine Besylate.
Has Dr. David C. Walker received payments from drug or device companies?
CMS Open Payments shows $3,987 in general payments to Dr. Walker from 30 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. David C. Walker been practicing?
Dr. Walker graduated from medical school in 1994, 32 years ago.
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