Active NPI
Kelly N Casteel, MD
- Hematology & Oncology Physician
- Longmont, CO
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hematology & Oncology Physician
- License
- DR.0070194
- Practice address
- 1760 E Ken Pratt Blvd Ste 302
Longmont, CO 80504-5311 - Phone
- (303) 684-1900
- NPI assigned
- Aug 1, 2012
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Hematology & Oncology Physician | 207RH0003X | DR.0070194 | CO | Primary |
Addresses
Primary practice location
1760 E Ken Pratt Blvd Ste 302
Longmont, CO 80504-5311
Mailing address
7951 E Maplewood Ave Ste 350
Greenwood Village, CO 80111-4758
Phone (303) 930-7803
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 9000216540 | Medicaid | CO |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CO
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Medical Oncology
- Education
- Other, 2011
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
1760 E Ken Pratt Boulevard
Suite 301 (RMBS) and Suite 302 (RMCC)
Longmont, CO 80504-5311
Phone (303) 684-1900
Hospital & facility affiliations
- Longs Peak Hospital
- Boulder Community Health
- Good Samaritan Medical Center LLC
Merit-based Incentive Payment System (MIPS)
- Final score
- 73.32 of 100
- Quality
- 59.88
- Promoting interoperability
- 72.04
- Improvement activities
- 40
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| Q3489 | CO | MD | Internal Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Rocky Mountain Cancer Centers LLP | Hematology & Oncology | Current | Accepting new patients |
| Rocky Mountain Cancer Centers, LLP | Hematology & Oncology | Current | Accepting new patients |
| Khalid Chowdhury MD, PC | Past | Accepting new patients |
Locations
3027 N Circle Dr
Colorado Springs, CO 80909
Phone (719) 577-2555
1601 E 19th Ave
Ste 3000
Denver, CO 80218
Phone (303) 388-4876
1800 N Williams St
Ste 200
Denver, CO 80218
Phone (303) 388-4876
7951 E Maplewood Ave
Ste 350
Greenwood Village, CO 80111
1760 E Ken Pratt Blvd
Ste 301
Longmont, CO 80504
Phone (300) 368-4190
1760 E Ken Pratt Blvd
Ste 302
Longmont, CO 80504
Phone (303) 684-1900
Interoperability endpoints
- kelly.casteel@rmcc.ikm.direct-ci.com
Organizations & group practices 3
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Hematology & Oncology Physician
- Greenwood Village, CO
- NPI 1518941186
-
- Hematology & Oncology Physician
- Longmont, CO
- NPI 1538762760
-
- Facial Plastic Surgery Physician
- Denver, CO
- NPI 1457502940
Hospital & facility affiliations 36
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Sleep Disorder Diagnostic Clinic/Center
- Boulder, CO
- NPI 1093357907
Hospital
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1343779200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1784764800000",
"number": "1740536291",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "7951 E MAPLEWOOD AVE STE 350",
"city": "GREENWOOD VILLAGE",
"state": "CO",
"postal_code": "801114758",
"telephone_number": "303-930-7803",
"fax_number": "303-930-5503"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1760 E KEN PRATT BLVD STE 302",
"city": "LONGMONT",
"state": "CO",
"postal_code": "805045311",
"telephone_number": "303-684-1900"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CASTEEL",
"first_name": "KELLY",
"middle_name": "N",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2012-08-01",
"last_updated": "2026-07-23",
"certification_date": "2026-07-23",
"status": "A"
},
"taxonomies": [
{
"code": "207RH0003X",
"taxonomy_group": "",
"desc": "Internal Medicine, Hematology & Oncology",
"state": "CO",
"license": "DR.0070194",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "9000216540",
"state": "CO"
}
],
"endpoints": [],
"other_names": []
}Other providers in Longmont, CO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 23, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.