John Denton Olson , PA-C
Physician Assistant • Temecula, CA
31675 Calle Barcaldo
Temecula, CA 925923611
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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NPI assigned on November 28, 2010; this date does not establish years in practice.
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Published CMS data list 11 Original Medicare Part B services in 2018.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2018. Published rows only; this is not a quality measure.
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Published Part B service records, 2018:
- 99204 — New patient outpatient office visit: 11 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2018. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2017 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2018). CPT notice
See the full table · Guide: How to read Medicare Part B data
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Published CMS data list 3,069 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Atorvastatin Calcium — 235 prescription fills, including refills.
- Metformin Hcl — 176 prescription fills, including refills.
- Lisinopril — 138 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 79 records in the table · Guide: How to read Medicare Part D prescriber data
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More Part D prescriptions than 90% of clinicians listed under Physician Assistant in Temecula, CA (2024, 40 clinicians with data). Median for this group: 330. Middle half: 118 to 1,305.
More Part D prescriptions than 90% of clinicians listed under Physician Assistant in California (2024, 7,516 clinicians with data). Median for this group: 229. Middle half: 72 to 718.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part D prescriptions went from 2,507 in 2020 to 3,069 in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020–2024.
Practice Location & Contact Primary Location
31675 Calle Barcaldo
Temecula, CA 925923611
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $1,577 in 2018
The total amount Medicare approved for these services in 2018. 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, 2018.
Paid by Medicare
About $1,021 in 2018
The part of the Medicare-allowed amount that Medicare itself paid in 2018, 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, 2018.
30-day fills
7,234 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
$341,377 in 2024
The total cost of these prescriptions in 2024, 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, 2024.
Open Payments general payments, program year 2025
All general payments: $228.13 across 11 records.
By nature of payment
- Food and Beverage: $228.13 across 11 records.
Reporting-company totals (3 largest of 8)
- Eli Lilly and Company: $48.58 across 2 records.
- Dexcom, Inc.: $43.66 across 2 records.
- Bayer Healthcare Pharmaceuticals Inc.: $36.96 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.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
NPI first issued
2010
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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)
John Olson 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 John Olson 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 Temecula and California
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
More Part D prescriptions than 90% of clinicians listed under Physician Assistant in Temecula, CA (2024, 40 clinicians with data). Median for this group: 330. Middle half: 118 to 1,305.
More Part D prescriptions than 90% of clinicians listed under Physician Assistant in California (2024, 7,516 clinicians with data). Median for this group: 229. Middle half: 72 to 718.
Part D drug cost
A higher Part D drug cost than 90% of clinicians listed under Physician Assistant in Temecula, CA (2024, 40 clinicians with data). Median for this group: $9,576. Middle half: $2,633 to $95,523.
A higher Part D drug cost than 90% of clinicians listed under Physician Assistant in California (2024, 7,516 clinicians with data). Median for this group: $3,945. Middle half: $709 to $60,209.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for John Olson are from 2018.
63 active clinicians are listed under Physician Assistant with a practice address in Temecula, CA (14,458 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Temecula
20.6% of these 63 clinicians have the CMS telehealth indicator.
58.7% of these 63 clinicians are listed by CMS as accepting Medicare assignment.
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
CMS data for Medicare Part B services are available for 2018 only.
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Medicare-allowed amount
CMS data for Medicare-allowed amount are available for 2018 only.
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Paid by Medicare
CMS data for Medicare payment amount are available for 2018 only.
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 22% from 2,507 in 2020 to 3,069 in 2024.
- 2020: 2,507
- 2021: 2,924
- 2022: 3,056
- 2023: 3,407
- 2024: 3,069
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30-day fills
30-day fills increased 34% from 5,411 in 2020 to 7,234 in 2024.
- 2020: 5,411
- 2021: 6,431
- 2022: 6,905
- 2023: 7,921
- 2024: 7,234
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Part D drug cost
Part D drug cost increased 82% from $187,830 in 2020 to $341,377 in 2024.
- 2020: $187,830
- 2021: $222,015
- 2022: $358,809
- 2023: $461,427
- 2024: $341,377
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $264.81 in 2021 to $228.13 in 2025.
- 2021: $264.81
- 2022: $279.65
- 2023: $429.04
- 2024: $382.62
- 2025: $228.13
Sources: CMS Medicare Physician & Other Practitioners (2018), 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 · 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 2025 (payments made January 1 – December 31, 2025): 11 records totaling $228.13.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Astellas Pharma US Inc |
Food and Beverage
In-kind items and services
|
Veozah | General | $30.67 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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MOUNJARO | General | $25.66 |
| Eli Lilly and Company |
Food and Beverage
In-kind items and services
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MOUNJARO | General | $22.92 |
| Dexcom, Inc. |
Food and Beverage
In-kind items and services
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Dexcom G6 Transmitter | General | $22.51 |
| Dexcom, Inc. |
Food and Beverage
In-kind items and services
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Dexcom G6 Transmitter | General | $21.15 |
| Xeris Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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GVOKE HYPOPEN | General | $19.27 |
| Bayer Healthcare Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
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Kerendia | General | $18.54 |
| Bayer Healthcare Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
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Kerendia | General | $18.42 |
| Viatris Specialty LLC |
Food and Beverage
In-kind items and services
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YUPELRI | General | $16.80 |
| Kowa Pharmaceuticals America, Inc. |
Food and Beverage
In-kind items and services
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ZORYVE | General | $16.31 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
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OTEZLA | General | $15.88 |
Source: CMS Open Payments, program year 2025, 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 2017 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, 2018; 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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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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11 | 11 | $264.00 | $143.35 |
Source: CMS Part B by Provider and Service, 2018; 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.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 235 | 20,850 | $3,876.43 | 113 |
| Metformin Hcl | Metformin Hcl | 176 | 15,300 | $2,404.53 | 81 |
| Lisinopril | Lisinopril | 138 | 12,000 | $1,533.49 | 71 |
| Losartan Potassium | Losartan Potassium | 129 | 11,310 | $2,161.55 | 58 |
| Diclofenac Sodium | Diclofenac Sodium | 106 | 4,156 | $27,719.87 | 51 |
| Jardiance | Empagliflozin | 106 | 5,505 | $100,298.21 | 31 |
| Januvia | Sitagliptin Phosphate | 98 | 4,500 | $76,518.82 | 28 |
| Tamsulosin Hcl | Tamsulosin Hcl | 95 | 7,745 | $2,002.96 | 47 |
| Levothyroxine Sodium | Levothyroxine Sodium | 82 | 6,960 | $1,528.69 | 31 |
| Gabapentin | Gabapentin | 75 | 5,950 | $1,318.44 | 43 |
| Hydrochlorothiazide | Hydrochlorothiazide | 69 | 6,210 | $232.33 | 33 |
| Metoprolol Succinate | Metoprolol Succinate | 69 | 5,940 | $1,746.75 | 30 |
| Simvastatin | Simvastatin | 62 | 5,310 | $935.32 | 28 |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 59 | 2,600 | $6,663.82 | 15 |
| Omeprazole | Omeprazole | 59 | 4,980 | $832.33 | 29 |
| Alendronate Sodium | Alendronate Sodium | 58 | 4,464 | $774.15 | 26 |
| Pioglitazone Hcl | Pioglitazone Hcl | 56 | 4,800 | $1,785.10 | 25 |
| Amlodipine Besylate | Amlodipine Besylate | 49 | 4,350 | $485.19 | 32 |
| Benazepril Hcl | Benazepril Hcl | 45 | 4,050 | $924.29 | 20 |
| Ibuprofen | Ibuprofen | 42 | 1,628 | $582.19 | 30 |
| Pravastatin Sodium | Pravastatin Sodium | 41 | 3,630 | $699.66 | 15 |
| Zolpidem Tartrate | Zolpidem Tartrate | 41 | 1,206 | $98.54 | — |
| Pantoprazole Sodium | Pantoprazole Sodium | 40 | 3,330 | $591.60 | 17 |
| Nifedipine Er | Nifedipine | 40 | 3,310 | $1,165.79 | 18 |
| Meloxicam | Meloxicam | 38 | 3,060 | $311.44 | 22 |
(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
NUCC Taxonomy Code: 363A00000X
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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20110405000957
CA
3870777444
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Career & Practice History
NPI enumerated November 28, 2010.
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.
NPI Administrative Meta
Other Physician Assistants in Temecula
- Chibuikem Okoro, PA
- Joel Roberts, PA-S
- Shane Cordrey
- Joy Miedema, PA-C
- Jaclyn Aldana, PA-C
- Daniel Nunez, PA
Mailing Address
31675 Calle Barcaldo
Temecula, CA 925923611
Phone: 9513020641