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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ROY CARL SHANNON MD
NPI 1104880335
Internal Medicine in Oroville, CA

Active since April 14, 2006PECOS Enrolled
73.34/100
CMS Quality Rating
2721 OLIVE HWY, STE 12, OROVILLE, CA 95966(530) 533-6061(530) 533-4438 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 13, 2026, Mar 7, 2023 (2 updates tracked since 2023).

About Roy Carl Shannon Md NPPES

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

ROY CARL SHANNON MD (NPI 1104880335) is an individual internal medicine provider in Oroville, California, licensed in California (C35734) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1104880335
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameROY CARL SHANNONCredential: MD
Location Address2721 OLIVE HWY, STE 12Oroville, CA 95966
Mailing Address2721 Olive Hwy, Ste 12Oroville, CA 95966 · (530) 533-6061 · Fax (530) 533-4438
Phone(530) 533-6061
Fax(530) 533-4438
Sole ProprietorNo
Enumeration DateApril 14, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1104880335 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · C35734
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
2721 OLIVE HWY, Oroville, CA 95966
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Other Identifiers 1

MedicaidGR0014101CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Roy Carl Shannon Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95966 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
$133.94 typical visit price
range $58.87 – $176.60
Typical copayment $33.48 (range $14.71 – $44.15)
Most-billed visit code 99204
Established Patient
$103.36 typical visit price
range $19.28 – $144.60
Typical copayment $25.84 (range $4.82 – $36.15)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

73.34/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality36.89
Promoting Interoperability100
Improvement Activities40
Cost57.82

Other Providers at the Same Location NPPES 16

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

DR. VAUGHN JEFFREY SMITH M.D.
Family Medicine
2721 OLIVE HWY, SUITE 8
OROVILLE, CA 95966
Butte County (530) 532-1820
THOMAS NELSON MUNDORFF MD
Internal Medicine
2721 OLIVE HWY, STE 12
OROVILLE, CA 95966
Butte County (530) 533-6061
DR. KI XIONG DPM
Podiatrist (Foot & Ankle Surgery)
2721 OLIVE HWY, SUITE 5
OROVILLE, CA 95966
Butte County (530) 538-5660
JASVEENA KAUR RAI DHUGGA FNP-C
Nurse Practitioner (Family)
2721 OLIVE HWY
OROVILLE, CA 95966
Butte County (530) 533-8500
OROVILLE HOSPITAL
Clinic/Center (Rural Health)
2721 OLIVE HWY, SUITE 5
OROVILLE, CA 95966
Butte County (530) 538-3037
MISS ERIC REDMER PHARMD
Pharmacist
2721 OLIVE HWY
OROVILLE, CA 95966
Butte County (530) 534-9811
NARINDER SINGH
Internal Medicine
2721 OLIVE HWY, STE 12
OROVILLE, CA 95966
Butte County (530) 533-6061
JERRY DEE WATERS MD
Pain Medicine (Pain Medicine)
2721 OLIVE HWY, STE 9
OROVILLE, CA 95966
Butte County (530) 538-3020

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 Roy Shannon's NPI number?

The NPI number for Roy Shannon is 1104880335. It was assigned to this individual provider in the NPPES registry on April 14, 2006.

Where is Roy Shannon located?

Roy Shannon practices at 2721 Olive Hwy Ste 12, Oroville, CA 95966. The listed phone number is (530) 533-6061.

What is Roy Shannon's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Roy Shannon enrolled in Medicare?

Yes. Roy Shannon is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Roy Shannon was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 30 days 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.