Katherine H. Callahan, DO
Family Medicine Physician · Lafayette, CO
Katherine H. Callahan, DO is a family medicine physician with a practice address in Lafayette, Colorado, and NPI 1215296926, issued on May 15, 2012. Check the license (Colorado 52612, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Katherine H. Callahan
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 52612 CO
20A12232 CA
Self-reported in NPPES; status is on the state search - Practice location
- 280 Exempla Cir, Lafayette, CO 80026
- Phone
- (303) 338-4545
- Enumerated
- May 15, 2012
- Record last updated
- May 7, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 65022378 CO
- Medicare enrollment
- Enrolled (PECOS I20131105000724); accepts Medicare assignment
- Medical or professional school
- Western University Of Health Sciences College Of Dental Med, 2010
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 280 Exempla Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Phyllis Acker, RNRheumatology Physician1821125709
- Brian AcresAmbulatory Care Registered Nurse1174865752
- Jennifer AirhartNurse's Aide1336276310
- Alice Albert, ODOptometrist1639206683
- Jill Allen, R.N.Registered Nurse1114043726
- Sandra AllenNurse's Aide1760519789
Verify Katherine H. Callahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 52612Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% more Medicare Part D claims than the average family medicine physician in 2024
5,889 Medicare Part D claims for 2,421 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 452 claims were for opioids.
Most prescribed
- Atorvastatin Calcium322 claims
- Alendronate Sodium274 claims
- Gabapentin241 claims
- Levothyroxine Sodium241 claims
- Lisinopril176 claims
- Oxycodone Hcl132 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
- Colorado Permanente Medical Group PCLafayette, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine H. Callahan among 3,563 family medicine physician records in Colorado
Katherine H. Callahan, DO 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 2012, is newer than 69% of them.
- NPI issued2012 · 69% of these records are older, 28% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2010 · median 2008 among the 2,077 with a school on file
- Record last updated2021 · 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).
57 family medicine physician records list a practice address in Lafayette
They are 57 of the 1,905 NPPES records with a practice address in Lafayette, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Lafayette → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Alex Bulkacz, MDLafayette, CO 800261639167075
- Kerri Charles, M.D.Lafayette, CO 800261134123821
- Susan Dowdy, M.D.Lafayette, CO 800261043299936
- Susan DuikerLafayette, CO 800261578545653
- Karen Funk, MDLafayette, CO 800261447248885
- Adelina Longoria, M.D.Lafayette, CO 800261740262070
- Shawn Otteman, D.O.Lafayette, CO 800261578545570
- Sharon Pittenger, M.D.Lafayette, CO 800261649252644
Common questions
What is Katherine H. Callahan, DO's NPI number?
Katherine H. Callahan, DO's National Provider Identifier (NPI) is 1215296926, issued on May 15, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Katherine H. Callahan, DO located?
The NPPES record lists a practice address at 280 Exempla Cir, Lafayette, CO, 80026. Phone: (303) 338-4545. Providers update this record themselves, so call before visiting.
How can I verify Katherine H. Callahan, DO's license?
NPPES lists Colorado license number 52612, 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 Katherine H. Callahan, DO prescribe under Medicare Part D?
In 2024, Katherine H. Callahan, DO had 5,889 Medicare Part D claims for 2,421 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.