Christopher Keenan, MD
NPI 1851389209 · Family Medicine Physician · Longmont, CO
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Keenan, MD is a Family Medicine Physician provider in Longmont, CO (NPI 1851389209).
Provider details
- NPI number
- 1851389209
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- DR.0034217 (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
20 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
928 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 294 | $129 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 100 | $91 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 95 | $130 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 66 | $9 |
| Administration of Influenza Virus VaccineG0008 | 52 | $33 |
| Admn Sarscov2 Vacc 1 Dose90480 | 42 | $43 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 73 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 175 | 60 |
| Atorvastatin Calcium | 158 | 59 |
| Losartan Potassium | 134 | 50 |
| Tramadol Hcl | 109 | 40 |
| Amlodipine Besylate | 106 | 39 |
| Lisinopril | 85 | 35 |
| Rosuvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-10
- Last updated
- 2023-07-20
- Certified
- 2023-07-20
Frequently asked questions
- What is Christopher Keenan's NPI number?
- Christopher Keenan's National Provider Identifier (NPI) is 1851389209, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Keenan's specialty?
- Christopher Keenan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Keenan located?
- Christopher Keenan's practice location on file with NPPES is 601 S Main St, Longmont, CO 80501-6427.
- What is Christopher Keenan's phone number?
- The practice phone number listed in the NPPES registry for Christopher Keenan is (720) 718-8410.
- Does Christopher Keenan accept Medicare?
- Christopher Keenan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Keenan's NPI active?
- Yes — Christopher Keenan's NPI (1851389209) is active in the NPPES registry as of the last update on 2023-07-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.