Christopher Jon Keenan, MD
Family Medicine Physician · Longmont, CO
Christopher Jon Keenan, MD is a family medicine physician with a practice address in Longmont, Colorado, and NPI 1851389209, issued on Oct 10, 2005. Check the license (Colorado DR.0034217, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Christopher Jon Keenan
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- DR.0034217 CO
Self-reported in NPPES; status is on the state search - Practice location
- 601 S Main St, Longmont, CO 80501
- Phone
- (720) 718-8410
- Enumerated
- Oct 10, 2005
- Record last updated
- Jul 20, 2023
- Fax
- (720) 718-8999
- Medicaid ID
- 01342179 CO
- Medicare enrollment
- Enrolled (PECOS I20060824000016); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Columbia School Of Medicine, 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 601 S Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ammie Christiansen, D.O.Family Medicine Physician1912976259
- Tricia Staatz, FNPFamily Nurse Practitioner1285109397
Verify Christopher Jon Keenan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0034217Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% fewer Medicare Part D claims than the average family medicine physician in 2024
3,315 Medicare Part D claims for 423 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 228 claims were for opioids.
Most prescribed
- Levothyroxine Sodium175 claims
- Atorvastatin Calcium158 claims
- Losartan Potassium134 claims
- Tramadol Hcl109 claims
- Amlodipine Besylate106 claims
- Lisinopril85 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Poudre Valley Medical Group LLCLongmont, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Jon Keenan among 3,563 family medicine physician records in Colorado
Christopher Jon Keenan, MD is one of 3,563 family medicine physician records with a practice address in Colorado. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1990 · median 2008 among the 2,077 with a school on file
- Record last updated2023 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
73 family medicine physician records list a practice address in Longmont
They are 73 of the 2,381 NPPES records with a practice address in Longmont, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Longmont → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Eric Benson, MDLongmont, CO 805011487658878
- David Britt, MDLongmont, CO 805011427052836
- Catherine Cavender, MDLongmont, CO 805011295739613
- Mary Faini, MDLongmont, CO 805011144222373
- James Freudenburg, MDLongmont, CO 805011710982137
- John Fritz, D.O.Longmont, CO 805011487655478
- Mark Hinman, M.D.Longmont, CO 805011750385415
- Richard Jacobi, MDLongmont, CO 805011639174733
Common questions
What is Christopher Jon Keenan, MD's NPI number?
Christopher Jon Keenan, MD's National Provider Identifier (NPI) is 1851389209, issued on Oct 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Jon Keenan, MD located?
The NPPES record lists a practice address at 601 S Main St, Longmont, CO, 80501. Phone: (720) 718-8410. Providers update this record themselves, so call before visiting.
How can I verify Christopher Jon Keenan, MD's license?
NPPES lists Colorado license number DR.0034217, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Christopher Jon Keenan, MD prescribe under Medicare Part D?
In 2024, Christopher Jon Keenan, MD had 3,315 Medicare Part D claims for 423 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.