Dr. Bryan C. Gieszl, MD
- Medicare services, 2024
- 2,067
- Medicare patients, 2024
- 479
- Part D claims, 2024
- 3,311
- MIPS score, 2024
- 7
- Hospital affiliations
- 2
- Practice address
- 101 Founders Pl Suite 109 Suite 109, Aspen, CO 81611-1476
- Practice phone
- Call (970) 920-0104
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Aspen Medical Care - Aspen
Multi-specialty group site · Aspen, Colorado
Find Dr. Gieszl'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. Bryan C. Gieszl is an internist in Aspen, Colorado
Dr. Gieszl practices at Aspen Medical Care - Aspen in Aspen, Colorado.
Dr. Gieszl's NPI, 1881644649, was assigned on May 11, 2006. Dr. Gieszl graduated from University of California, Geffen School of Medicine in 2003. Dr. Gieszl holds Colorado license 44470.
- NPI
- 1881644649NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658383146
- NPI enumeration date
- May 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (970) 920-0104
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Bryan C. Gieszl practices at Aspen Medical Care - Aspen in Aspen, Colorado
Dr. Gieszl's primary practice is Aspen Medical Care - Aspen, at 101 Founders Pl Suite 109 Suite 109, Aspen, CO 81611-1476. The practice phone is (970) 920-0104.
- Aspen Medical Care - Aspen101 Founders Pl Suite 109 Suite 109, Aspen, CO 81611-1476Phone(970) 920-0104
Source: Dmand AI Affiliation Data
Dr. Bryan C. Gieszl is affiliated with 3 sites of care and 2 medical groups
Dr. Gieszl's primary practice is Aspen Medical Care - Aspen in Aspen, Colorado. Dr. Gieszl is also affiliated with Aspen Valley Health. The medical group on file is Aspen Valley Health. Dmand AI also links Dr. Gieszl to 1 more hospital and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Bryan C. Gieszl's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gieszl practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aspen Medical Care - Aspen | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Bryan C. Gieszl is one of 1,668 internists in Colorado
Internal medicine is Dr. Gieszl's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Gieszl is licensed in Colorado.
Specialties and state licenses
- Internal medicine, ColoradoPrimary
Internists near Dr. Gieszl
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. Bryan C. Gieszl billed Medicare for 2,067 services in 2024
CMS data shows 2,067 Medicare services from Dr. Gieszl across 20 procedure codes in 2024, for 479 Medicare patients. Medicare paid $112,014 for them. Every service was in an office.
Dr. Gieszl's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 5142024: 91277%
- Office and hospital visits
- 2023: 1,0032024: 89011%
- Tests and treatments
- 2023: 1782024: 1761%
- Lab and pathology
- 2023: 962024: 897%
- Surgery
- 2023: 162024: 0100%
Dr. Gieszl compared with the Colorado median for internists, 2024
- Dr. Gieszl
- Colorado median
- Medicare services
- 2,067vs 3775.5 times
- Medicare patients
- 479vs 1862.6 times
- Part D claims
- 2,772vs 3188.7 times
Medians across 1,630 internists in Colorado with Dmand AI profiles that report each measure.
Dr. Gieszl'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. Gieszl and other internists in Colorado.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Bryan C. Gieszl treated 479 Medicare patients in 2024, average age 75
CMS counts 479 Medicare patients who saw Dr. Gieszl in 2024. The largest group is 65 to 74, with 247 patients. 61% of them have high cholesterol, and 46% have arthritis. Their average risk score is 0.73, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Gieszl's median patient age at 52, with 49% women.
Dr. Gieszl's Medicare patients by age, 2024
Dr. Gieszl's Medicare patients by sex, 2024
- Women22848%
- Men25152%
Chronic conditions among Dr. Gieszl's Medicare patients, 2024
- High cholesterol61%
- Arthritis46%
- High blood pressure39%
- Ischemic heart disease22%
- Osteoporosis17%
- Cancer14%
- Anxiety13%
- Atrial fibrillation12%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gieszl's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Bryan C. Gieszl wrote 3,311 Medicare Part D claims in 2024
In 2024, Dr. Gieszl wrote 3,311 Medicare Part D claims for 412 patients. 87% of them were for generic drugs. CMS names the drug for 2,772 of them, across 78 drugs with 11 or more claims each, at $125,009 in total drug cost. In 2023, CMS named 2,511 claims across 68 drugs.
Dr. Gieszl's Part D claims by kind of drug, 2024
- Generic2,895 claims87%
- Brand-name and other416 claims13%
Dr. Gieszl'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. Gieszl's Part D claims, 2024
- Opioids8%269 of 3,311 claims
- Antibiotics2%82 of 3,311 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: 2,5112024: 2,77210%
Drugs named by CMS: 78 in 2024, 68 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. Bryan C. Gieszl scored 7 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 7 out of 100 for Dr. Gieszl for performance year 2024, reported individually. Dr. Gieszl accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Gieszl as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Gieszl's MIPS scores, performance year 2024
- 7of 100Final score
- 0of 100Quality
- 0of 100Improvement Activities
- 24of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
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. Bryan C. Gieszl received $644 in industry payments from 2017 to 2025
CMS Open Payments shows 29 general payments to Dr. Gieszl from 8 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $278.
General payments to Dr. Gieszl by program year, 2017 to 2025
Companies that paid Dr. Gieszl the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Bryan C. Gieszl graduated from University of California, Geffen School of Medicine
Dr. Gieszl graduated from University of California, Geffen School of Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Bryan C. Gieszl'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. Bryan C. Gieszl
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. Bryan C. Gieszl's NPI number?
Dr. Bryan C. Gieszl's NPI number is 1881644649. It was assigned on May 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Bryan C. Gieszl?
Dr. Bryan C. Gieszl is an internist in Aspen, Colorado. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Bryan C. Gieszl practice?
Dr. Gieszl practices at 101 Founders Pl Suite 109 Suite 109, Aspen, CO 81611-1476. Dr. Gieszl's primary practice is Aspen Medical Care - Aspen in Aspen, Colorado. Dmand AI also links Dr. Gieszl to 1 hospital and 1 medical group.
What is Dr. Bryan C. Gieszl's office phone number?
The practice phone on file for Dr. Gieszl is (970) 920-0104.
What is Dr. Bryan C. Gieszl's medical license number?
Dr. Gieszl holds Colorado license 44470.
Which hospitals is Dr. Bryan C. Gieszl affiliated with?
Dr. Gieszl is affiliated with Aspen Valley Health. Dmand AI links Dr. Gieszl to 1 more hospital.
What medical group is Dr. Bryan C. Gieszl part of?
Dr. Gieszl is linked to Aspen Valley Health. Dmand AI links Dr. Gieszl to 1 more medical group.
Does Dr. Bryan C. Gieszl accept Medicare?
Yes. CMS data shows Dr. Gieszl billed Medicare for 2,067 services in 2024, and Dr. Gieszl accepts Medicare assignment.
Does Dr. Bryan C. Gieszl offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Gieszl as offering telehealth services.
What is Dr. Bryan C. Gieszl's MIPS score?
Dr. Gieszl's MIPS final score for performance year 2024 is 7 out of 100, reported individually.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Bryan C. Gieszl see?
CMS counts 479 Medicare patients who saw Dr. Gieszl in 2024, with an average age of 75.
What services does Dr. Bryan C. Gieszl bill to Medicare?
In 2024, Dr. Gieszl's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and medicare service (G0442).
Where did Dr. Bryan C. Gieszl go to medical school?
Dr. Gieszl graduated from University of California, Geffen School of Medicine in 2003.
What drugs does Dr. Bryan C. Gieszl prescribe most?
In 2024 Medicare Part D data, Dr. Gieszl's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Zolpidem Tartrate.
Has Dr. Bryan C. Gieszl received payments from drug or device companies?
CMS Open Payments shows $644 in general payments to Dr. Gieszl from 8 companies from 2017 to 2025. The largest total came from Pfizer Inc.
How long has Dr. Bryan C. Gieszl been practicing?
Dr. Gieszl graduated from medical school in 2003, 23 years ago.
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