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MS. KAREN L LARSON MD
NPI 1417949827
Family Medicine in Denver, CO

Active since August 22, 2005Opted out of Medicare · through Jun 27, 2027
4704 HARLAN STREET, SUITE 500, DENVER, CO 80212(303) 232-5354(303) 239-8878 Get Directions Write a Review

NPPES record last updated: November 23, 2011. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Ms. Karen L Larson Md NPPES

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

MS. KAREN L LARSON MD (NPI 1417949827) is an individual family medicine provider in Denver, Colorado, licensed in Colorado (38104) and active in the NPI registry since August 2005. She has opted out of Medicare through June 27, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1417949827
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameMS. KAREN L LARSONCredential: MD
Location Address4704 HARLAN STREET, SUITE 500Denver, CO 80212
Mailing Address4704 Harlan Street, Suite 500Denver, CO 80212 · (303) 232-5354 · Fax (303) 239-8878
Phone(303) 232-5354
Fax(303) 239-8878
Sole ProprietorYes
Enumeration DateAugust 22, 2005
Last NPPES UpdateNovember 23, 2011
✔ NPI 1417949827 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CO · 38104
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
4704 HARLAN STREET, Denver, CO 80212
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Other Identifiers 2

Medicare UPING18594
Medicare PIN508858

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Ms. Karen L Larson Md has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from June 27, 2023 through June 27, 2027.

Opt-Out Effective DateJune 27, 2023
Opt-Out In Effect ThroughJune 27, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80212 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
$89.43 typical visit price
range $58.06 – $174.82
Typical copayment $22.35 (range $14.51 – $43.70)
Most-billed visit code 99203
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.

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 Karen Larson's NPI number?

The NPI number for Karen Larson is 1417949827. It was assigned to this individual provider in the NPPES registry on August 22, 2005.

Where is Karen Larson located?

Karen Larson practices at 4704 Harlan Street Suite 500, Denver, CO 80212. The listed phone number is (303) 232-5354.

What is Karen Larson's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Karen Larson enrolled in Medicare?

No. Karen Larson has opted out of Medicare through June 27, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Karen Larson was last updated on November 23, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years 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.