DR. DARIN ERIK OLSON M.D., PH.D.
NPI 1043324700
Internal Medicine - Endocrinology, Diabetes & Metabolism in Fort Collins, CO

Q: What is Darin Olson's NPI number?

The NPI number for Darin Olson is 1043324700. It was assigned to this individual provider in the NPPES registry on August 19, 2006.

Q: What is Darin Olson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Q: When was this NPI record last updated?

The NPPES record for Darin Olson was last updated on November 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 19, 2006PECOS EnrolledAccepts Medicare Assignment

2121 E HARMONY RD UNIT 230, FORT COLLINS, CO 80528(970) 926-6340(970) 224-3636 Get Directions Write a Review

NPPES record last updated: November 14, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 14, 2025, May 13, 2022, Jun 11, 2021 (3 updates tracked since 2021).

On this page

About Dr. Darin Erik Olson M.d., Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. DARIN ERIK OLSON M.D., PH.D. (NPI 1043324700) is an individual endocrinology, diabetes & metabolism provider in Fort Collins, Colorado, licensed in Colorado (DR.0066793) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Ivinson Memorial Hospital, and is a graduate of Boston University School Of Medicine (1997).

NPPES Registry Identity

NPI1043324700

Entity TypeIndividualMale

Primary Taxonomy207RE0101X

Provider Legal NameDR. DARIN ERIK OLSONCredential: M.D., PH.D.

Location Address2121 E HARMONY RD UNIT 230Fort Collins, CO 80528-3401

Mailing Address2121 E Harmony Rd Unit 230Fort Collins, CO 80528-3401 · (970) 926-6340 · Fax (970) 224-3636

Phone(970) 926-6340

Fax(970) 224-3636

Sole ProprietorYes

Medical School CMSBoston University School Of MedicineGraduated 1997

Enumeration DateAugust 19, 2006

Last NPPES UpdateNovember 14, 20253 updates tracked since enumeration

NPPES CertifiedNovember 14, 2025

✔ NPI 1043324700 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians

Taxonomy Code207RE0101X

Licenses✔ Licensed in CO · DR.0066793✔ Licensed in GA · 046895

Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

2121 E HARMONY RD UNIT 230, Fort Collins, CO 80528

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Select Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Darin Erik Olson M.d., Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1557412657

PECOS Enrollment IDI20210721003122

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Darin Olson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Poudre Valley Medical Group, LLC

7.4 mi

General Practice

2695 ROCKY MOUNTAIN AVE STE 110
Loveland, CO 80538

Reassigned Medicare billing, Colorado enrollment
2,596 clinicians in this Medicare group

NPI 1225356868 (970) 624-4443

Boulder Community Health

27 mi

Primary Care

2101 KEN PRATT BLVD STE 104G
Longmont, CO 80501

Reassigned Medicare billing, Colorado enrollment
283 clinicians in this Medicare group

NPI 1073393807 (303) 415-4246

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 13

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, denosumab, 1 mg J0897

Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.

1,141 services14 patients

Dxa bone density measurement of hip, pelvis, spine 77080

A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.

180 services180 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

138 services108 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

122 services93 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

88 services81 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

74 services74 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

53 services53 patients

Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251

This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.

30 services18 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

30 services26 patients

Blood test, thyroid stimulating hormone (tsh) 84443

A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.

28 services27 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

20 services14 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

18 services15 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

17 services17 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ivinson Memorial Hospital

Acute Care Hospitals · Laramie, WY

OwnershipGovernment - Hospital District or Authority

CMS Certification Number530025

Location255 N 30thLaramie, WY 82072 · Albany County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80528 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$132.55 typical visit price

range $58.06 – $174.82

Typical copayment $33.13 (range $14.51 – $43.70)

Most-billed visit code 99204

Established Patient

$102.03 typical visit price

range $18.88 – $142.79

Typical copayment $25.50 (range $4.72 – $35.69)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

7 suppliers46 claims46 services$180.77 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

POLINA KALOYANOVA MD

Internal Medicine (Endocrinology, Diabetes & Metabolism)

2121 E HARMONY RD UNIT 230
FORT COLLINS, CO 80528

Larimer County (970) 224-3636

KYANA MORTON-MCCARTHY M.D

Internal Medicine (Sleep Medicine)

2121 E HARMONY RD UNIT 230
FORT COLLINS, CO 80528

Larimer County (970) 224-9102

POUDRE VALLEY MEDICAL GROUP, LLC

Internal Medicine (Endocrinology, Diabetes & Metabolism)

2121 E HARMONY RD UNIT 230
FORT COLLINS, CO 80528

Larimer County (970) 224-3636

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Darin Olson's NPI number?

The NPI number for Darin Olson is 1043324700. It was assigned to this individual provider in the NPPES registry on August 19, 2006.

Where is Darin Olson located?

Darin Olson practices at 2121 E Harmony Rd Unit 230, Fort Collins, CO 80528. The listed phone number is (970) 926-6340.

What is Darin Olson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Darin Olson enrolled in Medicare?

Yes. Darin Olson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Darin Olson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Darin Olson reassigns Medicare benefits to 2 organizations: Poudre Valley Medical Group, LLC (Loveland, CO) and Boulder Community Health (Longmont, CO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Darin Olson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Darin Olson accept?

Health plans from Select Health list Darin Olson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Darin Olson affiliated with any hospitals?

According to CMS data, Darin Olson is affiliated with Ivinson Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Darin Olson was last updated on November 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.