Gregory Russell Balko, MD
Individual provider Active NPI Emergency Medicine Physician · Aspen, CO
NPI 1932103405 · NPPES record last updated Feb 24, 2026
Key facts
- NPI
- 1932103405
- Entity type
- Individual (NPI type 1)
- Primary specialty
- Emergency Medicine Physician 207P00000X
- License
- 37036 (CO)
- Practice address
- 401 Castle Creek Rd
Aspen, CO 81611-1159 - Phone
- (970) 544-1228
- NPI assigned
- Jun 11, 2005
- Sex
- Male
- Sole proprietor
- Yes
Organizations & group practices 3
Medicare participation
- Medicare fee-for-service enrollment
- Enrolled in CO
- Eligible to order & refer
- Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: Yes
Medicare enrollment records
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20110621000230 | CO | Practitioner - Emergency Medicine | 9537347687 | Reassigns benefits to 2 organizations |
National Provider Directory
- Medicare enrollment (NPD)
- Yes
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 37036 | CO | MD | Emergency Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Aspen Valley Hospital District | Emergency Medicine | Current |
Accepting new patients |
| Aspen Valley Emergency Physicians | Emergency Medicine | Current | Accepting new patients |
| Aspen Valley Hospital District | Current |
Accepting new patients |
Locations
401 Castle Creek Rd
Aspen, CO 81611
Phone (970) 544-1192
Specialties & licenses
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Emergency Medicine Physician | 207P00000X | 37036 | CO | Yes |
Addresses
Primary practice location
401 Castle Creek Rd
Aspen, CO 81611-1159
Mailing address
401 Castle Creek Rd
Aspen, CO 81611-1159
Phone (970) 544-1228
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 92854532 | Medicaid | CO |
Other providers in Aspen, CO
- Nina K Axelrod
- Joseph Stevens Ayers
- Megan Baker
- Sandra Jean Baker
- Liza N Bakken
- Ellen Megan Barlow
- Trey Barnes
- Sandra Kaye Barthram
- Barthramod Inc
- Linzi Barton
All providers in Aspen, CO · Emergency Medicine Physician in Colorado
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on Feb 24, 2026. Information in NPPES is self-reported and not verified by CMS.
- NUCC Health Care Provider Taxonomy: specialty names.
- Medicare Fee-For-Service Public Provider Enrollment (CMS/PECOS): enrollments, PAC IDs and benefit reassignments.
- Order and Referring (CMS).
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.