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Dr. Shelly C. Thio , MD

Internal Medicine • Riverside, CA

Active NPI 1013076637 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

10800 Magnolia Ave
Riverside, CA 925053043

Call 9093532000 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

10800 Magnolia Ave

Riverside, CA 925053043

Telephone 9093532000
Organization at the Same NPPES Address or Phone
Southern California Permanente Medical Group Facility NPI 1316979834

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

CMS Doctors and Clinicians lists 1 group name: Southern California Permanente Medical Group. 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

Medical School

Loma Linda University School Of Medicine

Graduation Year

1995

30-day fills

15,973 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$305,065 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2019–2025.

Guide: How to read an Open Payments record

Years since graduation

31 years (graduated 1995)

CMS Doctors and Clinicians data list 1995 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

2006

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, “Does 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)

Dr. Thio 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 Dr. Thio 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 Riverside and California

Billing and prescribing volume is not a quality rating.

Medicare Part D prescriptions

More Part D prescriptions than 70% of clinicians listed under Internal Medicine in Riverside, CA (2024, 122 clinicians with data). Median for this group: 1,417. Middle half: 143 to 6,064.

More Part D prescriptions than 80% of clinicians listed under Internal Medicine in California (2024, 10,795 clinicians with data). Median for this group: 1,254. Middle half: 150 to 4,240.

Part D drug cost

A higher Part D drug cost than 70% of clinicians listed under Internal Medicine in Riverside, CA (2024, 122 clinicians with data). Median for this group: $71,418. Middle half: $4,122 to $376,393.

A higher Part D drug cost than 70% of clinicians listed under Internal Medicine in California (2024, 10,795 clinicians with data). Median for this group: $88,105. Middle half: $7,557 to $307,080.

187 active clinicians are listed under Internal Medicine with a practice address in Riverside, CA (17,717 in California).

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

Telehealth indicator in Riverside

20.9% of these 187 clinicians have the CMS telehealth indicator.

72.7% of these 187 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Atorvastatin Calcium Atorvastatin Calcium 787 74,063 $8,965.63 273
Lisinopril Lisinopril 351 31,584 $4,853.47 120
Amlodipine Besylate Amlodipine Besylate 321 28,923 $3,933.69 112
Losartan Potassium Losartan Potassium 309 28,330 $4,309.48 107
Levothyroxine Sodium Levothyroxine Sodium 280 22,756 $4,651.27 87
Rosuvastatin Calcium Rosuvastatin Calcium 276 23,494 $2,930.98 89
Atenolol Atenolol 200 18,419 $2,526.52 61
Metformin Hcl Metformin Hcl 193 18,079 $2,269.68 68
Omeprazole Omeprazole 139 12,524 $1,371.68 56
Glipizide Glipizide 132 11,697 $1,625.45 43
Hydrochlorothiazide Hydrochlorothiazide 130 12,330 $1,427.10 47
Lisinopril-Hydrochlorothiazide Lisinopril/Hydrochlorothiazide 124 10,685 $1,609.47 42
Albuterol Sulfate Hfa Albuterol Sulfate 114 4,056 $2,052.36 61
Metoprolol Tartrate Metoprolol Tartrate 102 8,588 $1,047.06 32
Potassium Chloride Potassium Chloride 90 8,632 $3,780.07 38
Pantoprazole Sodium Pantoprazole Sodium 89 6,738 $1,121.31 31
Pradaxa Dabigatran Etexilate Mesylate 89 5,871 $19,914.95 31
Gabapentin Gabapentin 88 7,049 $1,914.00 35
Alendronate Sodium Alendronate Sodium 87 7,250 $852.60 31
Allopurinol Allopurinol 77 7,510 $986.31 26
Hydralazine Hcl Hydralazine Hcl 73 6,595 $1,147.08 27
Jardiance Empagliflozin 71 6,260 $39,307.21 25
Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen 69 1,840 $2,139.93 17
Nano 2nd Gen Pen Needle Pen Needle, Diabetic 66 4,103 $1,416.95 22
Bisoprolol Fumarate Bisoprolol Fumarate 65 5,559 $1,771.15 21

(top 25 shown)

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES CA A61027

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.

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: Medical Board of California.
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 - INTERNAL MEDICINE

Medicare Enrollment ID

I20050426001378

Enrollment State Jurisdiction

CA

PECOS Control ID

8123067410

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

Southern California Permanente Medical Group

10800 Magnolia Ave, Riverside, CA 925053043

Phone: 9513532000

Clinicians Sharing This Practice Address or Phone

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

31 listed
Dr. Mark Ashley , MD

Family Medicine

NPI 1083773741

Doctor of Medicine (M.D.)

Dr. Sammy Badawi , MD

Internal Medicine

NPI 1073661971

Doctor of Medicine (M.D.)

NPI 1023177615

Doctor of Medicine (M.D.)

Dr. Richard Bradburne , MD

Internal Medicine - Critical Care Medicine

NPI 1003983925

Doctor of Medicine (M.D.)

Dr. Peter Cheng , DO

Anesthesiology

NPI 1033278635

Doctor of Osteopathic Medicine (D.O.)

Dr. Rachel Chiang , MD

Internal Medicine

NPI 1043368921

Doctor of Medicine (M.D.)

Career & Practice History

NPI enumerated December 08, 2006.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1013076637
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: December 08, 2006
Last Update: December 06, 2021
Sole Proprietor: No

Other Internal Medicine Providers in Riverside

All Internal Medicine Providers in Riverside

More public profiles in California

Directory navigation, in NPI number order.

Mailing Address

10800 Magnolia Ave

Riverside, CA 925053043

Phone: 9093532000

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.