Darin Erik Olson, M.D., PH.D.
Endocrinology, Diabetes & Metabolism Physician · Fort Collins, CO
Darin Erik Olson, M.D., PH.D. is an endocrinology, diabetes & metabolism physician with a practice address in Fort Collins, Colorado, and NPI 1043324700, issued on Aug 19, 2006. Check the license (Colorado DR.0066793, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Darin Erik Olson
- Credential
- M.D., PH.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- DR.0066793 CO
046895 GA
Self-reported in NPPES; status is on the state search - Practice location
- 2121 E Harmony RD Unit 230, Fort Collins, CO 80528
- Phone
- (970) 926-6340
- Enumerated
- Aug 19, 2006
- Record last updated
- Nov 14, 2025
- Fax
- (970) 224-3636
- Medicare enrollment
- Enrolled (PECOS I20210721003122); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 149 in Colorado → Look up another NPI →
Also registered at 2121 E Harmony RD Unit 230
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Polina Kaloyanova, MDEndocrinology, Diabetes & Metabolism Physician1073707667
- Kyana Morton-McCarthy, M.DSleep Medicine (Internal Medicine) Physician1932595865
Verify Darin Erik Olson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0066793Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,354 Medicare Part D claims for 222 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Alendronate Sodium172 claims
- Levothyroxine Sodium168 claims
- Ozempic58 claims
- Lantus Solostar56 claims
- Methimazole55 claims
- Atorvastatin Calcium45 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.
Industry payments in 2024: $409.69
11 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Poudre Valley Medical Group LLCFort Collins, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Darin Erik Olson among 149 endocrinology, diabetes & metabolism physician records in Colorado
Darin Erik Olson, M.D., PH.D. is one of 149 endocrinology, diabetes & metabolism physician records with a practice address in Colorado. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 49% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1997 · median 2002 among the 106 with a school on file
- Record last updated2025 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Colorado
There are 149 endocrinology, diabetes & metabolism physician records in Colorado.
All 149 in Colorado → Every provider in Fort Collins → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Meriam Izon, M.D.Fort Collins, CO 805281093723231
- Polina Kaloyanova, MDFort Collins, CO 805281073707667
- Alejandro Munoz, M.D.Fort Collins, CO 805281568639391
- Barbara Widom, M.D.Fort Collins, CO 805251669480810
- Gregory Hughes, MDLoveland, CO 805381477520997
- Dilasha Katwal, M.D.Loveland, CO 805381841604790
- Maria Paula Reyes Ramirez, MDLoveland, CO 805381720615230
- Sindhura TrivediLoveland, CO 805381891922522
Common questions
What is Darin Erik Olson, M.D., PH.D.'s NPI number?
Darin Erik Olson, M.D., PH.D.'s National Provider Identifier (NPI) is 1043324700, issued on Aug 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Darin Erik Olson, M.D., PH.D. located?
The NPPES record lists a practice address at 2121 E Harmony RD Unit 230, Fort Collins, CO, 80528. Phone: (970) 926-6340. Providers update this record themselves, so call before visiting.
How can I verify Darin Erik Olson, M.D., PH.D.'s license?
NPPES lists Colorado license number DR.0066793, 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 Darin Erik Olson, M.D., PH.D. prescribe under Medicare Part D?
In 2024, Darin Erik Olson, M.D., PH.D. had 1,354 Medicare Part D claims for 222 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.