Dr. Mark L. Wiesner, DO
- Hospital affiliations
- 1
- Industry payments
- $12
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2005
- Practice address
- 2695 Rocky Mountain Ave, Loveland, CO 80538
- Practice phone
- Call (970) 624-4420
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UCHealth Medical Group
Loveland, Colorado
Find Dr. Wiesner'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. Mark L. Wiesner is a pediatrician in Loveland, Colorado
Dr. Wiesner practices at UCHealth Medical Group in Loveland, Colorado.
Dr. Wiesner's NPI, 1154304939, was assigned on November 25, 2005. Dr. Wiesner holds Colorado license 31069.
- NPI
- 1154304939NPI Registry (opens in a new tab)
- NPI enumeration date
- November 25, 2005
- NPI status
- Active
- Practice phone
- (970) 624-4420
- 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. Mark L. Wiesner practices at UCHealth Medical Group in Loveland, Colorado
Dr. Wiesner's primary practice is UCHealth Medical Group, at 2695 Rocky Mountain Ave, Loveland, CO 80538 in Larimer County. The practice phone is (970) 624-4420.
- UCHealth Medical Group2695 Rocky Mountain Ave, Loveland, CO 80538 · Larimer CountyPhone(970) 624-4420
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark L. Wiesner is affiliated with 2 sites of care and 1 medical group
Dr. Wiesner's primary practice is UCHealth Medical Group in Loveland, Colorado. Dr. Wiesner is also affiliated with UCHealth Estes Valley Medical Center. The medical group on file is UCHealth Medical Group.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark L. Wiesner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wiesner practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCHealth Medical Group | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark L. Wiesner is one of 887 pediatricians in Colorado
Pediatrics is Dr. Wiesner's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Wiesner is licensed in Colorado.
Specialties and state licenses
- Pediatrics, ColoradoPrimary
Pediatricians near Dr. Wiesner
Counts of pediatricians 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. Mark L. Wiesner's patients have a median age of 5
Across all payers, Dmand AI patient panel data puts Dr. Wiesner's median patient age at 5, with 45% women.
Dr. Wiesner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 5
Patient panel by sex, all payers
- Women45%
- Men55%
Source: Dmand AI Patient Panel Data
Dr. Mark L. Wiesner received $12 in industry payments in 2021
CMS Open Payments shows 1 general payment to Dr. Wiesner from 1 drug or device company in 2021. Food and beverage make up the largest share, 100% of the total. Sanofi Pasteur Inc. paid the most, $12.
Companies that paid Dr. Wiesner the most, 2021 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark L. Wiesner'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 DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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. Mark L. Wiesner
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. Mark L. Wiesner's NPI number?
Dr. Mark L. Wiesner's NPI number is 1154304939. It was assigned on November 25, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark L. Wiesner?
Dr. Mark L. Wiesner is a pediatrician in Loveland, Colorado. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Mark L. Wiesner practice?
Dr. Wiesner practices at 2695 Rocky Mountain Ave, Loveland, CO 80538. Dr. Wiesner's primary practice is UCHealth Medical Group in Loveland, Colorado.
What is Dr. Mark L. Wiesner's office phone number?
The practice phone on file for Dr. Wiesner is (970) 624-4420.
What is Dr. Mark L. Wiesner's medical license number?
Dr. Wiesner holds Colorado license 31069.
Which hospitals is Dr. Mark L. Wiesner affiliated with?
Dr. Wiesner is affiliated with UCHealth Estes Valley Medical Center.
What medical group is Dr. Mark L. Wiesner part of?
Dr. Wiesner is linked to UCHealth Medical Group.
Has Dr. Mark L. Wiesner received payments from drug or device companies?
CMS Open Payments shows $12 in general payments to Dr. Wiesner from 1 company from 2021 to 2021. The largest total came from Sanofi Pasteur Inc.
How long has Dr. Mark L. Wiesner been practicing?
Dr. Wiesner's NPI was assigned in 2005.
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