Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Sergio R Riffel , MD

General Practice โ€ข Chico, CA

Active NPI 1619018066 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

680 Cohasset Rd
Chico, CA 959262213

Call 5303424395 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

680 Cohasset Rd

Chico, CA 959262213

Telephone 5303424395
Fax 5308942325
Organization at the Same NPPES Address or Phone
Ampla Health Facility NPI 1316963606

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: Vital Health Ca 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

Graduation Year

1980

Medicare patients

546 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $142,220 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $69,698 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

30-day fills

6,409 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

$120,380 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 โ€“ by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $320.21 across 7 records.

By nature of payment

  • Food and Beverage: $320.21 across 7 records.

Reporting-company totals (3 largest of 4)

  • Novo Nordisk Inc: $144.29 across 3 records.
  • Abbott Laboratories: $117.00 across 1 record.
  • Eli Lilly and Company: $36.92 across 2 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

46 years (graduated 1980)

CMS Doctors and Clinicians data list 1980 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

2007

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, โ€œDoes your provider accept Medicare as full payment?โ€

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. Riffel 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. Riffel 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 Chico and California

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 70% of clinicians listed under General Practice in California (2024, 409 clinicians with data). Median for this group: 485. Middle half: 154 to 2,019.

Too few clinicians listed under General Practice in Chico have Medicare Part B data for 2024 to compare.

Medicare-allowed amount

A higher Medicare-allowed amount than 70% of clinicians listed under General Practice in California (2024, 409 clinicians with data). Median for this group: $45,658. Middle half: $15,010 to $165,277.

Too few clinicians listed under General Practice in Chico have Medicare Part B data for 2024 to compare.

Paid by Medicare

A higher Medicare payment amount than 60% of clinicians listed under General Practice in California (2024, 409 clinicians with data). Median for this group: $32,130. Middle half: $11,436 to $131,972.

Too few clinicians listed under General Practice in Chico have Medicare Part B data for 2024 to compare.

Medicare Part D prescriptions

More Part D prescriptions than 65% of clinicians listed under General Practice in California (2024, 610 clinicians with data). Median for this group: 758. Middle half: 125 to 3,707.

Too few clinicians listed under General Practice in Chico have Medicare Part D data for 2024 to compare.

Part D drug cost

A higher Part D drug cost than 60% of clinicians listed under General Practice in California (2024, 610 clinicians with data). Median for this group: $48,894. Middle half: $2,044 to $279,308.

Too few clinicians listed under General Practice in Chico have Medicare Part D data for 2024 to compare.

13 active clinicians are listed under General Practice with a practice address in Chico, CA (1,963 in California).

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

Telehealth indicator in Chico

30.8% of these 13 clinicians have the CMS telehealth indicator.

46.2% of these 13 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท 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 ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): fewer than 11 records totaling $320.21.

Manufacturer Payment Nature Product Type Amount ($)
Abbott Laboratories
Food and Beverage
In-kind items and services
DIAMONDBACK PERIPHERAL General $117.00
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Ozempic General $114.49
Exact Sciences Corporation
Food and Beverage
In-kind items and services
The Cologuard Plus Collection Kit General $22.00
Eli Lilly and Company
Food and Beverage
In-kind items and services
ZEPBOUND General $21.77
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Rybelsus General $15.28
Eli Lilly and Company
Food and Beverage
In-kind items and services
MOUNJARO General $15.15
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Rybelsus General $14.52

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

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2019โ€“2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2020โ€“2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month
510 357 $67.49 $62.81
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
342 296 $138.87 $129.48
99439 Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month
279 170 $51.52 $48.22
99443 Telephone medical discussion with physician, 21-30 minutes
128 115 $136.00 $129.01
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
102 84 $223.76 $182.07
G0506 Comprehensive assessment of and care planning for patients requiring chronic care management services (list separately in addition to primary monthly care management service)
57 57 $67.00 $63.71
99497 Advance care planning, first 30 minutes
43 43 $88.00 $80.82
G0442 Annual alcohol misuse screening, 5 to 15 minutes
43 43 $24.00 $19.36
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
40 40 $142.00 $130.05
G0444 Annual depression screening, 5 to 15 minutes
40 40 $24.00 $19.36
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
33 33 $16.42 $14.43
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
32 32 $102.69 $91.69
81002 Urinalysis, manual test
12 11 $4.58 $3.41

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

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

CMS Part D ยท Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Levothyroxine Sodium Levothyroxine Sodium 155 12,699 $1,617.48 62
Atorvastatin Calcium Atorvastatin Calcium 149 12,847 $1,616.73 58
Amlodipine Besylate Amlodipine Besylate 132 11,507 $1,059.15 63
Losartan Potassium Losartan Potassium 128 10,740 $878.77 58
Metformin Hcl Metformin Hcl 107 9,480 $646.01 44
Rosuvastatin Calcium Rosuvastatin Calcium 91 7,890 $1,639.31 35
Pravastatin Sodium Pravastatin Sodium 83 7,350 $805.92 40
Famotidine Famotidine 81 6,199 $996.37 38
Lisinopril Lisinopril 78 6,343 $529.34 36
Metoprolol Succinate Metoprolol Succinate 78 5,903 $1,193.89 29
Montelukast Sodium Montelukast Sodium 70 5,400 $683.95 29
Pioglitazone Hcl Pioglitazone Hcl 70 2,980 $293.59 12
Gabapentin Gabapentin 68 3,870 $1,582.71 32
Alendronate Sodium Alendronate Sodium 65 4,968 $570.17 29
Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen 57 1,592 $2,090.23 35
Furosemide Furosemide 49 3,240 $263.21 18
Hydrochlorothiazide Hydrochlorothiazide 49 4,048 $134.10 22
Albuterol Sulfate Hfa Albuterol Sulfate 49 2,031 $1,454.99 31
Calcitonin-Salmon Calcitonin,salmon,synthetic 48 3,900 $6,467.49 26
Pantoprazole Sodium Pantoprazole Sodium 44 3,450 $461.95 20
Potassium Chloride Potassium Chloride 44 2,290 $852.09 17
Eliquis Apixaban 44 1,513 $29,370.89 โ€”
Indapamide Indapamide 42 3,371 $500.19 19
Tamsulosin Hcl Tamsulosin Hcl 41 3,240 $749.29 16
Omeprazole Omeprazole 38 3,360 $584.92 19

(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

Self-certified to NPPES: 2024-06-03
General Practice Primary Specialty

NUCC Taxonomy Code: 208D00000X

License # reported to NPPES CA A41494

A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.

Hospitalist

NUCC Taxonomy Code: 208M00000X

License # reported to NPPES ME 016873

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

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

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
431938099 (ME)

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

I20040625001161

Enrollment State Jurisdiction

CA

PECOS Control ID

9830175215

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

Vital Health Ca Medical Group

11386 Pleasant Valley Rd, Penn Valley, CA 959469000

Phone: 5304516234

Clinicians Sharing This Practice Address or Phone

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

17 listed
NPI 1639170806

Doctor of Medicine (M.D.)

Marianna Almanza , PA-C

Physician Assistant

NPI 1720542491

Physician Assistant (Certified)

Dr. Nasrin Ashouian , MD

Internal Medicine - Nephrology

NPI 1053522342

Doctor of Medicine (M.D.)

NPI 1851751408

Doctor of Medicine (M.D.)

Dr. Oswald Chan , MD

Family Medicine

NPI 1780676882

Doctor of Medicine (M.D.)

Minnie Christian , CRNP

Nurse Practitioner - Family

NPI 1902228174

Certified Registered Nurse Practitioner

Career & Practice History Timeline

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

7 Historical Events
๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) June 03, 2024

General Practice (license number reported to NPPES: CA A41494)

โœ…
NPI Profile Active November 14, 2011

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) November 14, 2011

Registered at 680 COHASSET RD, CHICO, CA 959262213 (Tel: 5303424395)

๐Ÿ“
Business Mailing Address (Initial Record) November 14, 2011

Registered at PO BOX AD, YUBA CITY, CA 959921396 (Tel: 5307513769)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) November 14, 2011

Recorded as SERGIO RIFFEL, M.D.

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) November 14, 2011

Internal Medicine (license number reported to NPPES: CA A41494)

๐ŸŸข
Initial NPI Registration & Enumeration February 09, 2007

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1619018066
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: February 09, 2007
Last Update: June 03, 2024
Sole Proprietor: No

Other General Practices in Chico

All General Practices in Chico

Mailing Address

Po Box Ad

Yuba City, CA 959921396

Phone: 5307513769

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.