Bryan Gieszl, MD
NPI 1881644649 · Internal Medicine Physician · Aspen, CO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Bryan Gieszl, MD is a Internal Medicine Physician provider in Aspen, CO (NPI 1881644649).
Provider details
- NPI number
- 1881644649
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 44470 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,968 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 616 | $122 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 425 | $15 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 160 | $17 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 125 | $86 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 123 | $17 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent Visit |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 78 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 256 | 77 |
| Levothyroxine Sodium | 135 | 40 |
| Zolpidem Tartrate | 133 | 37 |
| Oxycodone Hcl | 117 | — |
| Lisinopril | 91 | 23 |
| Gabapentin | 89 | 24 |
| Trazodone Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$186 across 8 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-11
- Last updated
- 2025-11-21
- Certified
- 2025-11-21
Frequently asked questions
- What is Bryan Gieszl's NPI number?
- Bryan Gieszl's National Provider Identifier (NPI) is 1881644649, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bryan Gieszl's specialty?
- Bryan Gieszl is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Bryan Gieszl located?
- Bryan Gieszl's practice location on file with NPPES is 101 Founders Pl Ste 109, Aspen, CO 81611-1476.
- What is Bryan Gieszl's phone number?
- The practice phone number listed in the NPPES registry for Bryan Gieszl is (970) 920-0104.
- Does Bryan Gieszl accept Medicare?
- Bryan Gieszl is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Bryan Gieszl's NPI active?
- Yes — Bryan Gieszl's NPI (1881644649) is active in the NPPES registry as of the last update on 2025-11-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.