Dr. Eric C Chenworth , DO
Allergy & Immunology • Riverton, UT
13348 S Market Center Dr, Ste 220
Riverton, UT 840658011
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Eric Chenworth is listed in NPPES under Allergy & Immunology.
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NPI assigned on February 8, 2006; this date does not establish years in practice.
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Published CMS data list 282 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 95117 — Professional service for multiple injections of allergen: 195 service units.
- 99214 — Established patient outpatient office visit: 45 service units.
- 94375 — Test to measure rate of airflow: 22 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 4 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 64 Medicare Part D prescriptions, including refills, in 2023.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Published rows only; this is not a quality measure.
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Published Part D records, 2023:
- Montelukast Sodium — 18 prescription fills, including refills.
- Albuterol Sulfate Hfa (Albuterol Sulfate) — 18 prescription fills, including refills.
- Dulera (Mometasone/Formoterol) — 15 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 4 records in the table · Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 65% of clinicians listed under Allergy & Immunology in Utah (2024, 17 clinicians with data). Median for this group: 502. Middle half: 257 to 1,276.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 2,074 in 2020 to 282 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
13348 S Market Center Dr
Ste 220
Riverton, UT 840658011
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
At Still University Of Health Sciences, College Of Osteo Med, Kirksville
2002
What Public CMS Data Show
Allergy & Immunology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
26 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $10,195 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.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
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 – by Provider and Service, 2024.
Paid by Medicare
About $7,743 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
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 – by Provider and Service, 2024.
30-day fills
74 standardized 30-day fills in 2023
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
$6,317 in 2023
The total cost of these prescriptions in 2023, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
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, 2023.
Open Payments general payments, program year 2023
All general payments: $124.04 across 7 records.
By nature of payment
- Food and Beverage: $124.04 across 7 records.
Reporting-company totals (3 largest of 7)
- Sanofi and Genzyme US Companies: $20.15 across 1 record.
- Genentech, Inc.: $19.97 across 1 record.
- Blueprint Medicines Corporation: $19.55 across 1 record.
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.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2023 (published June 30, 2026).
Years since graduation
24 years (graduated 2002)
CMS Doctors and Clinicians data list 2002 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished 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.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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?”
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.
Enrolled in Medicare (PECOS)
Dr. Chenworth 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.
Can order Medicare-covered services
CMS lists Dr. Chenworth 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.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
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.
Compared with the same specialty in Riverton and Utah
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 65% of clinicians listed under Allergy & Immunology in Utah (2024, 17 clinicians with data). Median for this group: 502. Middle half: 257 to 1,276.
Too few clinicians listed under Allergy & Immunology in Riverton have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A lower Medicare-allowed amount than 75% of clinicians listed under Allergy & Immunology in Utah (2024, 17 clinicians with data). Median for this group: $13,232. Middle half: $10,195 to $18,167.
Too few clinicians listed under Allergy & Immunology in Riverton have Medicare Part B data for 2024 to compare.
Paid by Medicare
A lower Medicare payment amount than 75% of clinicians listed under Allergy & Immunology in Utah (2024, 17 clinicians with data). Median for this group: $9,194. Middle half: $7,743 to $14,378.
Too few clinicians listed under Allergy & Immunology in Riverton have Medicare Part B data for 2024 to compare.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Chenworth are from 2023.
2 active clinicians are listed under Allergy & Immunology with a practice address in Riverton, UT (29 in Utah).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 86% from 2,074 in 2020 to 282 in 2024.
- 2020: 2,074
- 2021: 2,506
- 2022: 1,059
- 2023: 901
- 2024: 282
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Medicare-allowed amount
Medicare-allowed amount decreased 61% from $26,234 in 2020 to $10,195 in 2024.
- 2020: $26,234
- 2021: $34,319
- 2022: $16,532
- 2023: $15,092
- 2024: $10,195
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Paid by Medicare
Paid by Medicare decreased 59% from $18,984 in 2020 to $7,743 in 2024.
- 2020: $18,984
- 2021: $25,795
- 2022: $12,525
- 2023: $11,345
- 2024: $7,743
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 87% from 488 in 2019 to 64 in 2023.
- 2019: 488
- 2020: 450
- 2021: 199
- 2022: 69
- 2023: 64
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30-day fills
30-day fills decreased 89% from 704 in 2019 to 74 in 2023.
- 2019: 704
- 2020: 650
- 2021: 305
- 2022: 95
- 2023: 74
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Part D drug cost
Part D drug cost decreased 92% from $76,858 in 2019 to $6,317 in 2023.
- 2019: $76,858
- 2020: $102,895
- 2021: $60,795
- 2022: $10,632
- 2023: $6,317
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2023 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2023), CMS Open Payments (2023), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · 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
Program year 2023 (payments made January 1 – December 31, 2023): fewer than 11 records totaling $124.04.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Sanofi and Genzyme US Companies |
Food and Beverage
In-kind items and services
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DUPIXENT | General | $20.15 |
| Genentech, Inc. |
Food and Beverage
In-kind items and services
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Xolair | General | $19.97 |
| Blueprint Medicines Corporation |
Food and Beverage
In-kind items and services
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AYVAKIT | General | $19.55 |
| Incyte Corporation |
Food and Beverage
Cash or cash equivalent
|
OPZELURA | General | $17.95 |
| Hikma Pharmaceuticals USA |
Food and Beverage
In-kind items and services
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Ryaltris | General | $17.04 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
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XOLAIR | General | $14.87 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
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TEZSPIRE | General | $14.51 |
Source: CMS Open Payments, program year 2023, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 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 – by Provider and Service data, 2017–2024; 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 |
|---|---|---|---|---|
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95117
Professional service for multiple injections of allergen
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195 | 12 | $35.75 | $11.29 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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45 | 16 | $162.15 | $121.46 |
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94375
Test to measure rate of airflow
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22 | 15 | $97.07 | $36.44 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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20 | 15 | $108.10 | $86.28 |
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 2023.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Montelukast Sodium | Montelukast Sodium | 18 | 654 | $189.02 | — |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 18 | 333 | $892.61 | — |
| Dulera | Mometasone/Formoterol | 15 | 450 | $4,816.86 | — |
| Azelastine Hcl | Azelastine Hcl | 13 | 570 | $418.62 | — |
Source: CMS Part D by Provider and Drug, 2023; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2024-05-29NUCC Taxonomy Code: 207K00000X
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
NUCC Taxonomy Code: 207K00000X
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
NUCC Taxonomy Code: 207R00000X
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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - ALLERGY/IMMUNOLOGY
I20260116000438
TX
0446164313
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Family
Family Nurse Practitioner (Certified)
Nurse Practitioner - Family
Family Nurse Practitioner (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 13348 S MARKET CENTER DR, STE 220, RIVERTON, UT 840658011 (Tel: 3852901289)
Registered at 13348 S MARKET CENTER DR STE 220, RIVERTON, UT 840658011 (Tel: 3852901289)
Allergy & Immunology (license number reported to NPPES: CO 46865)
NPI status registered as active in NPPES database
Registered at 24 S 1100 E STE 201, SALT LAKE CITY, UT 841021554 (Tel: 3852901289)
Registered at 24 S 1100 E STE 201, SALT LAKE CITY, UT 841021554 (Tel: 3852901289)
Recorded as ERIC CHENWORTH, DO
Allergy & Immunology (license number reported to NPPES: UT 7666176-1204)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Mailing Address
13348 S Market Center Dr Ste 220
Riverton, UT 840658011
Phone: 3852901289