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Larissa Umberger , PA-S3

Physician Assistant β€’ Delta, CO

Active NPI 1093564932 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

1250 Valley View Dr
Delta, CO 814163138

Call 9708748981 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

1250 Valley View Dr

Delta, CO 814163138

Telephone 9708748981
Organization at the Same NPPES Address or Phone
Olathe Community Clinic Inc Facility NPI 1558886218

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 4 distinct additional practice-address records in Belfast, ME; Montrose, CO; Olathe, CO. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Olathe Community Clinic Inc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2025

Industry payments (Open Payments)

Fewer than 11 payment records totaling $20.93 in 2025

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2025.

Guide: How to read an Open Payments record

Years since graduation

1 years (graduated 2025)

CMS Doctors and Clinicians data list 2025 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2024

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Larissa Umberger has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Larissa Umberger as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Delta and Colorado

7 active clinicians are listed under Physician Assistant with a practice address in Delta, CO (3,802 in Colorado).

Addresses are self-reported to NPPES and may be out of date.

Sources: CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments Β· Program Year 2025

Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $20.93.

Manufacturer Payment Nature Product Type Amount ($)
Organon LLC
Food and Beverage
In-kind items and services
NEXPLANON General $20.93

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-01-16
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES CO PA.0009312

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Colorado Division of Professions and Occupations.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20250918002874

Enrollment State Jurisdiction

CO

PECOS Control ID

4880198282

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Olathe Community Clinic Inc

1010 S Rio Grande Ave, Montrose, CO 814014831

Phone: 9704973333

Olathe Community Clinic Inc

1250 Valley View Dr, Delta, CO 814163138

Phone: 9708748981

Secondary Practice Locations

308 Main St

Olathe, CO 81425

Phone: 9703236141

Po Box 25221

Belfast, ME 049152003

Phone: 9703236141

Po Box 529

Olathe, CO 814250529

Phone: 9703236141

1010 S Rio Grande Ave

Montrose, CO 814014831

Phone: 9704973333

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

9 listed
Dr. Susan Bright , MD

Family Medicine

NPI 1235196833

Doctor of Medicine (M.D.)

NPI 1992728919

Doctor of Dental Surgery

Courtney Keller

Nurse Practitioner - Family

NPI 1790551356
Mathew Mccullough , PA-C

Physician Assistant - Medical

NPI 1184189425

Physician Assistant (Certified)

Monica Mcmillon , FNP-BC

Nurse Practitioner - Family

NPI 1760711584

Family Nurse Practitioner (Board Certified)

NPI 1891751954

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

13 Historical Events
🏒
Secondary Practice Location Registered January 16, 2026

Additional practice office at PO Box 529, Olathe, CO 814250529

🏒
Secondary Practice Location Registered January 16, 2026

Additional practice office at 308 Main St, Olathe, CO 81425

🏒
Secondary Practice Location Registered January 16, 2026

Additional practice office at 1010 S Rio Grande Ave, Montrose, CO 814014831

🏒
Secondary Practice Location Registered January 16, 2026

Additional practice office at PO Box 25221, Belfast, ME 049152003

πŸ“
Updated Practice Location August 28, 2025

Registered at 1250 VALLEY VIEW DR, DELTA, CO 814163138 (Tel: 9708748981)

πŸ“
Updated Business Mailing Address August 28, 2025

Registered at PO BOX 529, OLATHE, CO 814250529 (Tel: 7032361419)

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) August 28, 2025

Physician Assistant (license number reported to NPPES: CO PA.0009312)

βœ…
NPI Profile Active May 14, 2024

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) May 14, 2024

Registered at 13001 E 17TH PL RM E7019, AURORA, CO 800452570 (Tel: 3037247963)

πŸ“
Business Mailing Address (Initial Record) May 14, 2024

Registered at 13001 E 17TH PL RM E7019, AURORA, CO 800452570 (Tel: 3037247963)

πŸ‘€
Provider Name / Credentials (Initial Record) May 14, 2024

Recorded as LARISSA UMBERGER, PA-S3

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) May 14, 2024

Student in an Organized Health Care Education/Training Program

🟒
Initial NPI Registration & Enumeration May 14, 2024

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1093564932
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 14, 2024
Last Update: January 16, 2026
Sole Proprietor: No

Other Physician Assistants in Delta

Mailing Address

Po Box 529

Olathe, CO 814250529

Phone: 7032361419

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.