Dr. Marc Robert Walker, MD
- Part D claims, 2019
- 13
- Publications
- 6
- Hospital affiliations
- 1
- Industry payments
- $208
- Medical groups
- 2
- Practice address
- 1750 E Ken Pratt Blvd, Longmont, CO 80504
- Practice phone
- Call (720) 718-3005
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. Marc Robert Walker is a urologist in Longmont, Colorado
Dr. Walker practices at UCHealth Longs Peak Hospital in Longmont, Colorado, part of UCHealth.
Dr. Walker's NPI, 1558522987, was assigned on June 18, 2008. Dr. Walker graduated from University of Colorado School of Medicine, Denver in 2008. Dr. Walker holds Colorado license 0048806.
- NPI
- 1558522987NPI Registry (opens in a new tab)
- NPI enumeration date
- June 18, 2008
- NPI status
- Active
- Practice phone
- (720) 718-3005
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Marc Robert Walker practices at UCHealth Longs Peak Hospital in Longmont, Colorado
Dr. Walker's primary practice is UCHealth Longs Peak Hospital, at 1750 E Ken Pratt Blvd, Longmont, CO 80504 in Boulder County. The practice phone is (720) 718-3005.
- UCHealth Longs Peak Hospital1750 E Ken Pratt Blvd, Longmont, CO 80504 · Boulder CountyPhone(720) 718-3005
Source: Dmand AI Affiliation Data
Dr. Marc Robert Walker is affiliated with 1 site of care and 2 medical groups
Dr. Walker's primary practice is UCHealth Longs Peak Hospital in Longmont, Colorado, part of UCHealth. The medical group on file is Conemaugh Physicians Group. Dmand AI also links Dr. Walker to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Marc Robert 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 |
|---|---|
| UCHealth Longs Peak Hospital | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Marc Robert Walker is one of 203 urologists in Colorado
Urology is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dmand AI has Dr. Walker's licenses on file in 3 states: Colorado, Hawaii and Illinois.
Specialties and state licenses
- Urology, ColoradoPrimary
- General practice, Hawaii
- Illinois license
Urologists near Dr. Walker
Counts of urologists 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. Marc Robert Walker's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Walker's median patient age at 66, with 22% 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 66
Patient panel by sex, all payers
- Women22%
- Men78%
Source: Dmand AI Patient Panel Data
Dr. Marc Robert Walker wrote 13 Medicare Part D claims in 2019
In 2019, Dr. Walker wrote 13 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $135 in total drug cost.
Dr. Walker's most prescribed drugs by claims, 2019
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. Marc Robert Walker has 6 publications on record
Dmand AI links 6 papers to Dr. Walker, published from 2013 to 2014. 2014 was the busiest year, with 2. Dr. Walker's most frequent co-authors are Leah Perez McMann, MD, Alexander Joseph Ernest, MD and George Sebastian Kallingal, MD, MPH.
Dr. Walker's most frequent co-authors
- Leah Perez McMann, MD4 shared papers
- Alexander Joseph Ernest, MD2 shared papers
- George Sebastian Kallingal, MD, MPH2 shared papers
Recent publications by Dr. Walker
J Ultrasound Med
See who Dr. Walker researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Walker works with, so you can find a warm path to the right urologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Marc Robert Walker received $208 in industry payments from 2018 to 2025
CMS Open Payments shows 4 general payments to Dr. Walker from 4 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 56% of the total. Medtronic, Inc. paid the most, $99.
General payments to Dr. Walker by program year, 2018 to 2025
General payments to Dr. Walker by kind, 2018 to 2025
- Food and beverage$11656%
- Education$7737%
- Speaker and faculty fees$157%
Companies that paid Dr. Walker the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Marc Robert Walker graduated from University of Colorado School of Medicine, Denver
Dr. Walker graduated from University of Colorado School of Medicine, Denver in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Marc Robert 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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Marc Robert 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. Marc Robert Walker's NPI number?
Dr. Marc Robert Walker's NPI number is 1558522987. It was assigned on June 18, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Marc Robert Walker?
Dr. Marc Robert Walker is a urologist in Longmont, Colorado. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Marc Robert Walker practice?
Dr. Walker practices at 1750 E Ken Pratt Blvd, Longmont, CO 80504. Dr. Walker's primary practice is UCHealth Longs Peak Hospital in Longmont, Colorado, part of UCHealth. Dmand AI also links Dr. Walker to 1 medical group.
What is Dr. Marc Robert Walker's office phone number?
The practice phone on file for Dr. Walker is (720) 718-3005.
What is Dr. Marc Robert Walker's medical license number?
Dr. Walker holds Colorado license 0048806, one of the licenses on file in 3 states.
Which states has Dr. Marc Robert Walker been licensed in?
Dmand AI has state licenses on file for Dr. Walker in Colorado, Hawaii and Illinois.
Which hospitals is Dr. Marc Robert Walker affiliated with?
Dr. Walker practices at UCHealth Longs Peak Hospital in Longmont, Colorado.
What medical group is Dr. Marc Robert Walker part of?
Dr. Walker is linked to Conemaugh Physicians Group. Dmand AI links Dr. Walker to 1 more medical group.
Where did Dr. Marc Robert Walker go to medical school?
Dr. Walker graduated from University of Colorado School of Medicine, Denver in 2008.
What drugs does Dr. Marc Robert Walker prescribe most?
In 2019 Medicare Part D data, Dr. Walker's most prescribed drugs by claims were Tamsulosin HCl.
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Has Dr. Marc Robert Walker received payments from drug or device companies?
CMS Open Payments shows $208 in general payments to Dr. Walker from 4 companies from 2018 to 2025. The largest total came from Medtronic, Inc.
How long has Dr. Marc Robert Walker been practicing?
Dr. Walker graduated from medical school in 2008, 18 years ago.
Does Dr. Marc Robert Walker do research?
Dmand AI links 6 publications to Dr. Walker, published from 2013 to 2014.
Who does Dr. Marc Robert Walker publish with?
Dr. Walker's most frequent co-authors are Leah Perez McMann, MD (4 shared papers), Alexander Joseph Ernest, MD (2 shared papers) and George Sebastian Kallingal, MD, MPH (2 shared papers).
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