Dr. Warren Charles Dorlac, MD

  • Loveland, CO
  • General surgeon
NPI1689740144PAC ID9931288750
Medicare services, 2024
369
Medicare patients, 2024
147
Part D claims, 2024
20
Publications
75
Clinical trials
1
Practice address
2500 Rocky Mountain Ave, Loveland, CO 80538
Practice phone
Call (970) 624-2500
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UCHealth Medical Center of the Rockies

Hospital · Loveland, Colorado

See all 6 affiliations

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Dr. Warren Charles Dorlac is a general surgeon in Loveland, Colorado

Dr. Dorlac practices at UCHealth Medical Center of the Rockies in Loveland, Colorado, part of UCHealth.

Dr. Dorlac's NPI, 1689740144, was assigned on November 28, 2006. Dr. Dorlac graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 1989. Dr. Dorlac holds Colorado license DR.0053091.

NPI and contact details
Medicare PAC ID
9931288750
NPI enumeration date
November 28, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(970) 624-2500
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
63
Medical school graduation
1989

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Warren Charles Dorlac practices at UCHealth Medical Center of the Rockies in Loveland, Colorado

Dr. Dorlac's primary practice is UCHealth Medical Center of the Rockies, at 2500 Rocky Mountain Ave, Loveland, CO 80538 in Larimer County. The practice phone is (970) 624-2500.

Source: Dmand AI Affiliation Data

Dr. Warren Charles Dorlac is affiliated with 4 sites of care and 2 medical groups

Dr. Dorlac's primary practice is UCHealth Medical Center of the Rockies in Loveland, Colorado, part of UCHealth. Dr. Dorlac is also affiliated with UCHealth Poudre Valley Hospital. The medical group on file is UCHealth Medical Group. Dmand AI also links Dr. Dorlac to 2 more hospitals and 1 medical group, each named with a free account.

See all 6 affiliations for Dr. Dorlac

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Warren Charles Dorlac's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dorlac practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UCHealth Medical Center of the RockiesAvailable with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Warren Charles Dorlac is one of 504 general surgeons in Colorado

Surgery is Dr. Dorlac's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Dorlac is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Dorlac's licenses on file in 5 states: Colorado, California, Wyoming, Ohio and Texas.

Specialties and state licenses

  • Surgery, ColoradoPrimaryLicense DR.0053091 · 2013 to 2027 · taxonomy 208600000X
  • California licenseSince 1998
  • Wyoming license2015 to 2026
  • Ohio license2008 to 2017
  • Texas license1993 to 2016

Clinical focus

Dmand AI lists appendectomy, chest trauma, colon removal, gallbladder removal, gastrointestinal obstruction, groin hernia surgery, non-surgical back problems and traumatic coma among the conditions Dr. Dorlac treats.

General surgeons near Dr. Dorlac

Counts of general surgeons 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. Warren Charles Dorlac billed Medicare for 369 services in 2024

CMS data shows 369 Medicare services from Dr. Dorlac across 7 procedure codes in 2024, for 147 Medicare patients. Medicare paid $29,100 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024369
Medicare patients147
Paid by Medicare$29,100
Procedure codes7

Dr. Dorlac's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2782024: 25010%
Other services
2023: 1312024: 1199%

Dr. Dorlac compared with the Colorado median for general surgeons, 2024

  • Dr. Dorlac
  • Colorado median
Medicare services
369vs 1093.4 times
Medicare patients
147vs 10441% above

Medians across 491 general surgeons in Colorado with Dmand AI profiles that report each measure.

Dr. Dorlac'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.

See all procedures by Dr. Dorlac

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Warren Charles Dorlac treated 147 Medicare patients in 2024, average age 76

CMS counts 147 Medicare patients who saw Dr. Dorlac in 2024. The largest group is 65 to 74, with 55 patients. 75% of them have high blood pressure, and 68% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.61, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Dorlac's median patient age at 73, with 52% women.

Medicare patients, 2024147
Average age76
Average risk score1.61
Also on Medicaid12%

Dr. Dorlac's Medicare patients by age, 2024

Dr. Dorlac's Medicare patients by sex, 2024

  • Women7450%
  • Men7350%

Chronic conditions among Dr. Dorlac's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol68%
  3. Arthritis62%
  4. Mood disorders44%
  5. Chronic kidney disease43%
  6. Anxiety41%
  7. Depression41%
  8. Stroke or TIA41%

Share of Medicare patients with each condition. A patient can have several.

Dr. Dorlac's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 73

Patient panel by sex, all payers

  • Women52%
  • Men48%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Warren Charles Dorlac wrote 20 Medicare Part D claims in 2024

In 2024, Dr. Dorlac wrote 20 Medicare Part D claims for 12 patients. 90% of them were for generic drugs.

Part D claims, 202420
Part D patients12

Dr. Dorlac's Part D claims by kind of drug, 2024

  • Generic18 claims90%
  • Brand-name and other2 claims10%

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. Warren Charles Dorlac takes part in Medicare

Dr. Dorlac accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)

Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Warren Charles Dorlac has 75 publications on record

Dmand AI links 75 papers to Dr. Dorlac, published from 2010 to 2025. 2025 was the busiest year, with 8. The most frequent topics are Military Medicine, Military Personnel and Wounds and Injuries. Dr. Dorlac has published most often in J Trauma Acute Care Surg. Dr. Dorlac's most frequent co-authors are Thomas J. Schroeppel, MD, Frank Kennedy Butler, MD and Jennifer Gurney, MD.

Papers75
Years published2010 to 2025

Dr. Dorlac's papers by year, 2012 to 2025

Topics Dr. Dorlac writes about most

  • Military Medicine
  • Military Personnel
  • Wounds and Injuries
  • Resuscitation
  • Emergency Medical Services
  • Trauma Centers
  • Hemorrhage
  • Injury Severity Score

Dr. Dorlac's most frequent co-authors

Recent publications by Dr. Dorlac

See all 75 publications and co-authors

See who Dr. Dorlac researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Dorlac works with, so you can find a warm path to the right general surgeons.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Warren Charles Dorlac has worked on 1 clinical trial

Dmand AI links Dr. Dorlac to 1 clinical trial. Conditions studied include Brain Injuries, Traumatic and Brain Injuries.

Conditions in Dr. Dorlac's trials

  • Brain Injuries, Traumatic
  • Brain Injuries

Recent clinical trials with Dr. Dorlac

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Warren Charles Dorlac received $8,690 in industry payments from 2016 to 2025

CMS Open Payments shows 37 general payments to Dr. Dorlac from 15 drug and device companies from 2016 to 2025. Honoraria make up the largest share, 39% of the total. ZOLL Medical Corporation paid the most, $3,490. It also lists 1 research payment totaling $2,100 in 2018.

General payments to Dr. Dorlac by program year, 2016 to 2025

General payments to Dr. Dorlac by kind, 2016 to 2025

$8.7Kin total
  • Honoraria$3,41339%
  • Device or supply loans$2,06024%
  • Food and beverage$1,81221%
  • Travel and lodging$1,31615%
  • Other$891%

Companies that paid Dr. Dorlac the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Dorlac

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Warren Charles Dorlac has 8 awards and honors on record

Dmand AI lists 8 awards for Dr. Dorlac, most recently Dr. Norman E. McSwain, Jr. Leadership Award in 2019.

Awards and honors for Dr. Dorlac

  1. 2019
    • Dr. Norman E. McSwain, Jr. Leadership Award
  2. 2012
    • John P. Pryor, MD Distinguished Service Award
  3. 2011
    • Legion of Merit
  4. 2006
    • Order of Military Medical Merit
  5. Undated
    • ACS Fellow
    • Andrew C Ruoff, III Travel Award
See all 8 awards

Source: Dmand AI Professional Profile Data

Dr. Warren Charles Dorlac graduated from Uniformed Services University, F. Edward Hebert School of Medicine

Dr. Dorlac graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 1989. Dr. Dorlac is a member of ACS.

  1. Medical schoolUniformed Services University, F. Edward Hebert School of Medicine
  2. Board certified in surgeryAmerican Board of Surgery
  3. Board certified in surgical critical careAmerican Board of Surgery

Source: Dmand AI Professional Profile Data

Dr. Warren Charles Dorlac accepts plans from 15 insurance carriers

Dr. Dorlac is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

Plan types Dr. Dorlac accepts, by number of carriers

  1. PPO11
  2. Medicare10
  3. HMO6
  4. POS6
  5. EPO4

Source: Dmand AI Insurance Network Data

Sources for Dr. Warren Charles Dorlac's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Warren Charles Dorlac

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. Warren Charles Dorlac's NPI number?

Dr. Warren Charles Dorlac's NPI number is 1689740144. It was assigned on November 28, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Warren Charles Dorlac?

Dr. Warren Charles Dorlac is a general surgeon in Loveland, Colorado. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Warren Charles Dorlac practice?

Dr. Dorlac practices at 2500 Rocky Mountain Ave, Loveland, CO 80538. Dr. Dorlac's primary practice is UCHealth Medical Center of the Rockies in Loveland, Colorado, part of UCHealth. Dmand AI also links Dr. Dorlac to 2 hospitals and 1 medical group.

What is Dr. Warren Charles Dorlac's office phone number?

The practice phone on file for Dr. Dorlac is (970) 624-2500.

What is Dr. Warren Charles Dorlac's medical license number?

Dr. Dorlac holds Colorado license DR.0053091, one of the licenses on file in 5 states.

Which states has Dr. Warren Charles Dorlac been licensed in?

Dmand AI has state licenses on file for Dr. Dorlac in Colorado (2013 to 2027), California (since 1998), Wyoming (2015 to 2026), Ohio (2008 to 2017) and Texas (1993 to 2016).

Which hospitals is Dr. Warren Charles Dorlac affiliated with?

Dr. Dorlac practices at UCHealth Medical Center of the Rockies in Loveland, Colorado. Dr. Dorlac is also affiliated with UCHealth Poudre Valley Hospital. Dmand AI links Dr. Dorlac to 2 more hospitals.

What medical group is Dr. Warren Charles Dorlac part of?

Dr. Dorlac is linked to UCHealth Medical Group. Dmand AI links Dr. Dorlac to 1 more medical group.

Does Dr. Warren Charles Dorlac accept Medicare?

Yes. CMS data shows Dr. Dorlac billed Medicare for 369 services in 2024, and Dr. Dorlac accepts Medicare assignment.

How many Medicare patients does Dr. Warren Charles Dorlac see?

CMS counts 147 Medicare patients who saw Dr. Dorlac in 2024, with an average age of 76.

Show 8 more questionsShow fewer questions

Is Dr. Warren Charles Dorlac board certified?

Yes. Dr. Dorlac is board certified in surgery by the American Board of Surgery.

What services does Dr. Warren Charles Dorlac bill to Medicare?

In 2024, Dr. Dorlac's most billed Medicare services were medicare service (G0316), hospital inpatient care (99233) and hospital inpatient care (99223).

Where did Dr. Warren Charles Dorlac go to medical school?

Dr. Dorlac graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 1989.

Has Dr. Warren Charles Dorlac received payments from drug or device companies?

CMS Open Payments shows $8,690 in general payments to Dr. Dorlac from 15 companies from 2016 to 2025. The largest total came from ZOLL Medical Corporation.

How long has Dr. Warren Charles Dorlac been practicing?

Dr. Dorlac graduated from medical school in 1989, 37 years ago.

Does Dr. Warren Charles Dorlac do research?

Dmand AI links 75 publications to Dr. Dorlac, published from 2010 to 2025. Dr. Dorlac has worked on 1 clinical trial.

Who does Dr. Warren Charles Dorlac publish with?

Dr. Dorlac's most frequent co-authors are Thomas J. Schroeppel, MD (11 shared papers), Frank Kennedy Butler, MD (8 shared papers) and Jennifer Gurney, MD (7 shared papers).

What insurance does Dr. Warren Charles Dorlac accept?

Dr. Dorlac is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

Selling to surgery practices?

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