Charles Edward Gast

  • Fort Collins, CO
  • Otolaryngologist
NPI1659814663PAC ID3779830989
Medicare services, 2024
357
Medicare patients, 2024
227
Part D claims, 2024
242
Publications
8
Hospital affiliations
4
Practice address
1120 E Elizabeth St, Fort Collins, CO 80524
Practice phone
Call (970) 221-1177
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Alpine Ear, Nose & Throat - Fort Collins

Fort Collins, Colorado

See all 7 affiliations

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Charles Edward Gast is an otolaryngologist in Fort Collins, Colorado

Charles Gast practices at Alpine Ear, Nose & Throat - Fort Collins in Fort Collins, Colorado.

Charles Gast's NPI, 1659814663, was assigned on November 22, 2016. Charles Gast graduated from Oregon Health Sciences University School of Medicine in 2018. Charles Gast holds Colorado license 0070200.

NPI and contact details
Medicare PAC ID
3779830989
NPI enumeration date
November 22, 2016
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(970) 221-1177
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
34
Medical school graduation
2018

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

Charles Edward Gast practices at Alpine Ear, Nose & Throat - Fort Collins in Fort Collins, Colorado

Charles Gast's primary practice is Alpine Ear, Nose & Throat - Fort Collins, at 1120 E Elizabeth St, Fort Collins, CO 80524 in Larimer County. The practice phone is (970) 221-1177.

  • Alpine Ear, Nose & Throat - Fort Collins
    1120 E Elizabeth St, Fort Collins, CO 80524 · Larimer CountyPhone(970) 221-1177

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Charles Edward Gast is affiliated with 6 sites of care and 1 medical group

Charles Gast's primary practice is Alpine Ear, Nose & Throat - Fort Collins in Fort Collins, Colorado. Charles Gast is also affiliated with UCHealth Poudre Valley Hospital. The medical group on file is Alpine Ear, Nose & Throat. Dmand AI also links Charles Gast to 3 more hospitals and 1 group practice or clinic, each named with a free account.

See all 7 affiliations for Charles Gast

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Charles Edward Gast's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Charles Gast practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Alpine Ear, Nose & Throat - Fort CollinsAvailable with a free account
+5 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Charles Edward Gast is one of 166 otolaryngologists in Colorado

Otolaryngology is Charles Gast's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Charles Gast is licensed in Colorado.

Specialties and state licenses

  • Otolaryngology, ColoradoPrimaryLicense 0070200 · taxonomy 207Y00000X

Otolaryngologists near Charles Gast

Counts of otolaryngologists 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

Charles Edward Gast billed Medicare for 357 services in 2024

CMS data shows 357 Medicare services from Charles Gast across 8 procedure codes in 2024, for 227 Medicare patients. Medicare paid $33,773 for them. Every service was in an office.

Medicare services, 2024357
Medicare patients227
Paid by Medicare$33,773
Procedure codes8

Charles Gast's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 932024: 251170%
Surgery
2023: 402024: 106165%

Charles Gast compared with the Colorado median for otolaryngologists, 2024

  • Charles Gast
  • Colorado median
Medicare services
357vs 55035% below
Medicare patients
227vs 25110% below
Part D claims
157vs 152Close to median

Medians across 168 otolaryngologists in Colorado with Dmand AI profiles that report each measure.

Charles Gast'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 Charles Gast and other otolaryngologists in Colorado.

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

Charles Edward Gast treated 227 Medicare patients in 2024, average age 74

CMS counts 227 Medicare patients who saw Charles Gast in 2024. The largest group is 65 to 74, with 118 patients. 65% of them have high cholesterol, and 62% have high blood pressure. 8% are also on Medicaid. Their average risk score is 1.05, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Charles Gast's median patient age at 45, with 52% women.

Medicare patients, 2024227
Average age74
Average risk score1.05
Also on Medicaid8%

Charles Gast's Medicare patients by age, 2024

Charles Gast's Medicare patients by sex, 2024

  • Women12354%
  • Men10446%

Chronic conditions among Charles Gast's Medicare patients, 2024

  1. High cholesterol65%
  2. High blood pressure62%
  3. Arthritis45%
  4. Mood disorders24%
  5. Ischemic heart disease23%
  6. Depression22%
  7. Anxiety20%
  8. COPD19%

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

Charles Gast's patients across all payers

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

Patient panel by age, all payers

Median age 45

Patient panel by sex, all payers

  • Women52%
  • Men47%

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

Charles Edward Gast wrote 242 Medicare Part D claims in 2024

In 2024, Charles Gast wrote 242 Medicare Part D claims for 122 patients. 99% of them were for generic drugs. CMS names the drug for 157 of them, across 7 drugs with 11 or more claims each, at $2,488 in total drug cost. In 2023, CMS named 24 claims across 2 drugs.

Part D claims, 2024242
Drugs named by CMS7
Total drug cost$2,488
Part D patients122

Charles Gast's Part D claims by kind of drug, 2024

  • Generic239 claims99%
  • Brand-name and other3 claims1%

Charles Gast'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 Charles Gast's Part D claims, 2024

  • Opioids10%24 of 242 claims
  • Antibiotics7%16 of 242 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: 242024: 157554%

Drugs named by CMS: 7 in 2024, 2 in 2023.

See all prescribing by Charles Gast

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

How Charles Edward Gast takes part in Medicare

Charles Gast accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)

Skin biopsy: 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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Charles Edward Gast has 8 publications on record

Dmand AI links 8 papers to Charles Gast, published from 2013 to 2021. 2013 was the busiest year, with 2. The most frequent topics are Antifungal Agents, Cryptococcosis and Cryptococcus gattii. Charles Gast's most frequent co-authors are Luai Zarour, MD, Jerry Jeff Jaboin, MD and Brett C. Sheppard, MD.

Papers8
Years published2013 to 2021

Charles Gast's papers by year, 2013 to 2021

Topics Charles Gast writes about most

  • Antifungal Agents
  • Cryptococcosis
  • Cryptococcus gattii
  • Cryptococcus neoformans
  • Gene Expression
  • Microbial Sensitivity Tests
  • Northwestern United States
  • Saccharomyces cerevisiae

Charles Gast's most frequent co-authors

Recent publications by Charles Gast

See all 8 publications and co-authors

See who Charles Gast researches with

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

How network discovery works

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

Charles Edward Gast received $439 in industry payments from 2023 to 2025

CMS Open Payments shows 11 general payments to Charles Gast from 9 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $151.

General payments to Charles Gast by program year, 2023 to 2025

Companies that paid Charles Gast the most, 2023 to 2025

Share is of all general payments to this clinician.

See all payments to Charles Gast

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

Charles Edward Gast graduated from Oregon Health Sciences University School of Medicine

Charles Gast graduated from Oregon Health Sciences University School of Medicine in 2018.

  1. Medical schoolOregon Health Sciences University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Charles Edward Gast'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 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 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
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile 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 Charles Edward Gast

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Charles Edward Gast's NPI number?

Charles Edward Gast's NPI number is 1659814663. It was assigned on November 22, 2016, and it is active in the NPI Registry.

What does Charles Edward Gast specialize in?

Charles Edward Gast is an otolaryngologist in Fort Collins, Colorado. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).

Where does Charles Edward Gast practice?

Charles Gast practices at 1120 E Elizabeth St, Fort Collins, CO 80524. Charles Gast's primary practice is Alpine Ear, Nose & Throat - Fort Collins in Fort Collins, Colorado. Dmand AI also links Charles Gast to 3 hospitals and 1 group practice or clinic.

What is Charles Edward Gast's office phone number?

The practice phone on file for Charles Gast is (970) 221-1177.

What is Charles Edward Gast's medical license number?

Charles Gast holds Colorado license 0070200.

Which hospitals is Charles Edward Gast affiliated with?

Charles Gast is affiliated with UCHealth Poudre Valley Hospital. Dmand AI links Charles Gast to 3 more hospitals.

What medical group is Charles Edward Gast part of?

Charles Gast is linked to Alpine Ear, Nose & Throat.

Does Charles Edward Gast accept Medicare?

Yes. CMS data shows Charles Gast billed Medicare for 357 services in 2024, and Charles Gast accepts Medicare assignment.

How many Medicare patients does Charles Edward Gast see?

CMS counts 227 Medicare patients who saw Charles Gast in 2024, with an average age of 74.

What services does Charles Edward Gast bill to Medicare?

In 2024, Charles Gast's most billed Medicare services were office visit, new patient (99203), office visit, established patient (99213) and office visit, new patient (99204).

Show 6 more questionsShow fewer questions

Where did Charles Edward Gast go to medical school?

Charles Gast graduated from Oregon Health Sciences University School of Medicine in 2018.

What drugs does Charles Edward Gast prescribe most?

In 2024 Medicare Part D data, Charles Gast's most prescribed drugs by claims were Ipratropium Bromide, Omeprazole and Oxycodone HCl.

Has Charles Edward Gast received payments from drug or device companies?

CMS Open Payments shows $439 in general payments to Charles Gast from 9 companies from 2023 to 2025. The largest total came from Medtronic, Inc.

How long has Charles Edward Gast been practicing?

Charles Gast graduated from medical school in 2018, 8 years ago.

Does Charles Edward Gast do research?

Dmand AI links 8 publications to Charles Gast, published from 2013 to 2021.

Who does Charles Edward Gast publish with?

Charles Gast's most frequent co-authors are Luai Zarour, MD (4 shared papers), Jerry Jeff Jaboin, MD (2 shared papers) and Brett C. Sheppard, MD (2 shared papers).

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