Kelly Casteel, MD
NPI 1740536291 · Internal Medicine Physician · Longmont, CO
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kelly Casteel, MD is a Internal Medicine Physician provider in Longmont, CO (NPI 1740536291).
Provider details
- NPI number
- 1740536291
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- Q3489 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
5,393 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 562 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 553 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 484 | $10 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 339 | $15 |
| Flow Cytometry Technique for Dna Or Cell Analysis, Each Additional Marker88185 | 326 | $24 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 288 | $131 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Acyclovir | 43 | — |
| Apixabanbrand: Eliquis | 31 | — |
| Dexamethasone | 28 | 13 |
| Lenalidomidebrand: Revlimid | 23 | — |
| Prednisone | 17 | — |
| Oxycodone Hcl | 16 | 11 |
| Potassium Chloride | 14 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-08-01
- Last updated
- 2025-09-23
- Certified
- 2025-09-23
Frequently asked questions
- What is Kelly Casteel's NPI number?
- Kelly Casteel's National Provider Identifier (NPI) is 1740536291, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kelly Casteel's specialty?
- Kelly Casteel is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kelly Casteel located?
- Kelly Casteel's practice location on file with NPPES is 1760 E Ken Pratt Blvd Ste 302, Longmont, CO 80504-5311.
- What is Kelly Casteel's phone number?
- The practice phone number listed in the NPPES registry for Kelly Casteel is (303) 684-1900.
- Does Kelly Casteel accept Medicare?
- Kelly Casteel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kelly Casteel's NPI active?
- Yes — Kelly Casteel's NPI (1740536291) is active in the NPPES registry as of the last update on 2025-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.