Emily Sim , PA-C
Physician Assistant โข Oxnard, CA
2221 Wankel Way
Oxnard, CA 930300192
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 April 12, 2022; this date does not establish years in practice.
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Published CMS data list 5,395 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- J7328 โ Hyaluronan or derivative, gelsyn-3, for intra-articular injection, 0.1 mg: 4,368 service units.
- 99213 โ Established patient outpatient office visit: 348 service units.
- 20610 โ Aspiration and/or injection of fluid from large joint: 112 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ 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 16 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 268 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Meloxicam โ 134 prescription fills, including refills.
- Celecoxib โ 76 prescription fills, including refills.
- Diclofenac Sodium โ 19 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 6 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 95% of clinicians listed under Physician Assistant in Oxnard, CA (2024, 31 clinicians with data). Median for this group: 162. Middle half: 51 to 819.
More Medicare Part B services than 95% of clinicians listed under Physician Assistant in California (2024, 4,833 clinicians with data). Median for this group: 198. Middle half: 71 to 535.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 8,079 in 2023 to 5,395 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023โ2024.
Practice Location & Contact Primary Location
2221 Wankel Way
Oxnard, CA 930300192
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Ventura, CA. See the list
Source: CMS NPPES NPI Registry, practice location records; 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
University Of Southern California Keck School Of Medicine
2022
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
256 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 โ by Provider, 2024.
Medicare-allowed amount
About $73,919 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 โ by Provider and Service, 2024.
Paid by Medicare
About $55,830 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 โ by Provider and Service, 2024.
30-day fills
273 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
$4,329 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 โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $1,245.26 across 16 records.
By nature of payment
- Travel and Lodging: $867.80 across 3 records.
- Food and Beverage: $377.46 across 13 records.
Reporting-company totals
- Arthrex, Inc.: $841.58 across 14 records.
- Cornerstone Medical Associates, Inc.: $383.96 across 1 record.
- Bioventus LLC: $19.72 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 2025 (published June 30, 2026).
Years since graduation
4 years (graduated 2022)
CMS Doctors and Clinicians data list 2022 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
2022
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.
May accept Medicare assignment
CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.
Ask the office before your visit. If a clinician does not accept assignment for a service, they can charge up to 15% more than the Medicare-approved amount, and you may be asked to pay the full amount at the visit.
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, โDoes your provider accept Medicare as full payment?โ
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)
Emily Sim 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 Emily Sim 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 Oxnard and California
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 95% of clinicians listed under Physician Assistant in Oxnard, CA (2024, 31 clinicians with data). Median for this group: 162. Middle half: 51 to 819.
More Medicare Part B services than 95% of clinicians listed under Physician Assistant in California (2024, 4,833 clinicians with data). Median for this group: 198. Middle half: 71 to 535.
Medicare-allowed amount
A higher Medicare-allowed amount than 80% of clinicians listed under Physician Assistant in Oxnard, CA (2024, 31 clinicians with data). Median for this group: $12,419. Middle half: $866 to $62,119.
A higher Medicare-allowed amount than 85% of clinicians listed under Physician Assistant in California (2024, 4,833 clinicians with data). Median for this group: $18,173. Middle half: $6,666 to $41,587.
Paid by Medicare
A higher Medicare payment amount than 80% of clinicians listed under Physician Assistant in Oxnard, CA (2024, 31 clinicians with data). Median for this group: $9,558. Middle half: $866 to $44,153.
A higher Medicare payment amount than 85% of clinicians listed under Physician Assistant in California (2024, 4,833 clinicians with data). Median for this group: $13,209. Middle half: $4,792 to $30,879.
Medicare Part D prescriptions
Fewer Part D prescriptions than 65% of clinicians listed under Physician Assistant in Oxnard, CA (2024, 37 clinicians with data). Median for this group: 474. Middle half: 221 to 1,455.
Close to the middle for 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 lower Part D drug cost than 65% of clinicians listed under Physician Assistant in Oxnard, CA (2024, 37 clinicians with data). Median for this group: $27,474. Middle half: $3,428 to $151,172.
Close to the middle for 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.
69 active clinicians are listed under Physician Assistant with a practice address in Oxnard, CA (14,458 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Oxnard
10.1% of these 69 clinicians have the CMS telehealth indicator.
50.7% of these 69 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
Medicare Part B services decreased 33% from 8,079 in 2023 to 5,395 in 2024.
- 2023: 8,079
- 2024: 5,395
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Medicare-allowed amount
Medicare-allowed amount increased 13% from $65,651 in 2023 to $73,919 in 2024.
- 2023: $65,651
- 2024: $73,919
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Paid by Medicare
Paid by Medicare increased 11% from $50,098 in 2023 to $55,830 in 2024.
- 2023: $50,098
- 2024: $55,830
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 54% from 174 in 2023 to 268 in 2024.
- 2023: 174
- 2024: 268
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30-day fills
30-day fills increased 50% from 182 in 2023 to 273 in 2024.
- 2023: 182
- 2024: 273
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Part D drug cost
Part D drug cost increased 68% from $2,573 in 2023 to $4,329 in 2024.
- 2023: $2,573
- 2024: $4,329
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $47.36 in 2024 to $1,245.26 in 2025.
- 2024: $47.36
- 2025: $1,245.26
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
Program year 2025 (payments made January 1 โ December 31, 2025): 16 records totaling $1,245.26.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Cornerstone Medical Associates, Inc. |
Travel and Lodging
In-kind items and services
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โ | General | $383.96 |
| Arthrex, Inc. |
Travel and Lodging
In-kind items and services
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โ | General | $241.92 |
| Arthrex, Inc. |
Travel and Lodging
In-kind items and services
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โ | General | $241.92 |
| Arthrex, Inc. |
Food and Beverage
In-kind items and services
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โ | General | $36.62 |
| Arthrex, Inc. |
Food and Beverage
In-kind items and services
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โ | General | $36.62 |
| Arthrex, Inc. |
Food and Beverage
In-kind items and services
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โ | General | $36.39 |
| Arthrex, Inc. |
Food and Beverage
In-kind items and services
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โ | General | $36.39 |
| Arthrex, Inc. |
Food and Beverage
In-kind items and services
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โ | General | $30.95 |
| Arthrex, Inc. |
Food and Beverage
In-kind items and services
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โ | General | $30.95 |
| Arthrex, Inc. |
Food and Beverage
In-kind items and services
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โ | General | $29.69 |
| Arthrex, Inc. |
Food and Beverage
In-kind items and services
|
โ | General | $29.69 |
| Arthrex, Inc. |
Food and Beverage
In-kind items and services
|
โ | General | $25.69 |
| Arthrex, Inc. |
Food and Beverage
In-kind items and services
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โ | General | $25.69 |
| Bioventus LLC |
Food and Beverage
In-kind items and services
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EXOGEN ULTRASOUND BONE HEALING SYSTEM | General | $19.72 |
| Arthrex, Inc. |
Food and Beverage
In-kind items and services
|
โ | General | $19.53 |
| Arthrex, Inc. |
Food and Beverage
In-kind items and services
|
โ | General | $19.53 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2022โ2023 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, 2023โ2024; 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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J7328
Hyaluronan or derivative, gelsyn-3, for intra-articular injection, 0.1 mg
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4,368 | 12 | $4.70 | $0.48 |
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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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348 | 167 | $189.00 | $81.61 |
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20610
Aspiration and/or injection of fluid from large joint
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112 | 49 | $230.63 | $62.54 |
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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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101 | 81 | $268.00 | $115.13 |
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J0702
Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg
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86 | 35 | $8.00 | $6.91 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
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58 | 58 | $230.00 | $100.98 |
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73030
X-ray of shoulder, minimum of 2 views
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55 | 32 | $88.00 | $33.49 |
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J7321
Hyaluronan or derivative, hyalgan, supartz or visco-3, for intra-articular injection, per dose
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55 | 14 | $172.00 | $73.20 |
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73630
X-ray of foot, minimum of 3 views
|
45 | 25 | $84.00 | $32.82 |
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73110
X-ray of wrist, minimum of 3 views
|
36 | 20 | $88.00 | $39.66 |
|
73564
X-ray of knee, 4 or more views
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32 | 29 | $105.00 | $45.49 |
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73610
X-ray of ankle, minimum of 3 views
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29 | 20 | $85.00 | $35.05 |
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73130
X-ray of hand, minimum of 3 views
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21 | 16 | $84.00 | $35.79 |
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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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21 | 21 | $344.00 | $150.31 |
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27447
Replacement of knee joint, both sides of knee
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15 | 15 | $1100.00 | $179.27 |
|
72100
X-ray of lower and sacral spine, 2-3 views
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13 | 12 | $107.00 | $38.17 |
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.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Meloxicam | Meloxicam | 134 | 4,050 | $304.28 | 45 |
| Celecoxib | Celecoxib | 76 | 2,400 | $3,558.56 | 24 |
| Diclofenac Sodium | Diclofenac Sodium | 19 | 570 | $222.15 | 11 |
| Tramadol Hcl | Tramadol Hcl | 16 | 108 | $27.02 | โ |
| Ibuprofen | Ibuprofen | 12 | 335 | $68.52 | โ |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 11 | 77 | $148.04 | โ |
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: 2026-01-20NUCC 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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20220818003776
CA
9133502420
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Secondary Practice Locations
3525 Loma Vista Rd Ste A
Ventura, CA 930033165
Phone: 8056416415
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physician Assistant
Physician Assistant (Certified), MPAS
Orthopaedic Surgery - Orthopaedic Surgery of the Spine
Doctor of Medicine (M.D.)
Orthopaedic Surgery - Sports Medicine
Doctor of Medicine (M.D.)
Physical Therapist - Orthopedic
Orthopaedic Surgery - Sports Medicine
Doctor of Medicine (M.D.)
Orthopaedic Surgery - Hand Surgery
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Physician Assistant (license number reported to NPPES: CA 61271)
Registered at 1203 FLYNN RD UNIT 160, CAMARILLO, CA 930126203 (Tel: 8058044168)
Registered at 2221 WANKEL WAY, OXNARD, CA 930300192 (Tel: 8059889366)
Registered at 5720 RALSTON ST STE 200, VENTURA, CA 930037844 (Tel: 8058044168)
Recorded as EMILY SIM, PA-C
Physician Assistant
NPI status registered as active in NPPES database
Registered at 513 HIGH POINT DR, VENTURA, CA 930031446 (Tel: 8053201006)
Registered at 513 HIGH POINT DR, VENTURA, CA 930031446 (Tel: 8053201006)
Recorded as EMILY SIM
Physician Assistant
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Oxnard
- Gregory Huffman, PA
- Krystine Forbes
- Hannah Ginther, PA-C
- Tim Ho
- Kristine Supple, PA
- Alejandra Mazzarelli, PA-C
Mailing Address
1203 Flynn Rd Unit 160
Camarillo, CA 930126203
Phone: 8058044168