Lily R Caesar , PA
Physician Assistant • Vista, CA
145 Thunder Dr
Vista, CA 920836010
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 20, 2007; this date does not establish years in practice.
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Published CMS data list 61 Medicare Part D prescriptions, including refills, in 2017.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2017. Published rows only; this is not a quality measure.
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Published Part D records, 2017:
- Fluticasone Propionate — 41 prescription fills, including refills.
- Ventolin Hfa (Albuterol Sulfate) — 20 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2017. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
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Medicare Part D prescriptions went from 86 in 2013 to 61 in 2017.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2013–2017.
Practice Location & Contact Primary Location
145 Thunder Dr
Vista, CA 920836010
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
62 standardized 30-day fills in 2017
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
$1,481 in 2017
The total cost of these prescriptions in 2017, 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, 2017.
Open Payments general payments, program year 2025
All general payments: $233.16 across 2 records.
By nature of payment
- Food and Beverage: $233.16 across 2 records.
Reporting-company totals
- Regeneron Pharmaceuticals, Inc.: $121.84 across 1 record.
- AstraZeneca Pharmaceuticals LP: $111.32 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).
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.
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.
Compared with the same specialty in Vista and California
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Lily Caesar are from 2017.
42 active clinicians are listed under Physician Assistant with a practice address in Vista, CA (14,458 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Vista
19% of these 42 clinicians have the CMS telehealth indicator.
47.6% of these 42 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 D prescriptions
Medicare Part D prescriptions decreased 29% from 86 in 2013 to 61 in 2017.
- 2013: 86
- 2014: 139
- 2015: 254
- 2016: 226
- 2017: 61
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30-day fills
30-day fills decreased 28% from 86 in 2013 to 62 in 2017.
- 2013: 86
- 2014: 140
- 2015: 256
- 2016: 228
- 2017: 62
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Part D drug cost
Part D drug cost decreased 55% from $3,320 in 2013 to $1,481 in 2017.
- 2013: $3,320
- 2014: $3,125
- 2015: $3,827
- 2016: $3,887
- 2017: $1,481
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $542.85 in 2023 to $233.16 in 2025.
- 2023: $542.85
- 2025: $233.16
Sources: CMS Medicare Part D Prescribers (2017), 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): fewer than 11 records totaling $233.16.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Regeneron Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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DUPIXENT | General | $121.84 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
WAINUA | General | $111.32 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2017.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Fluticasone Propionate | Fluticasone Propionate | 41 | 1,260 | $415.82 | 37 |
| Ventolin Hfa | Albuterol Sulfate | 20 | 386 | $1,064.85 | 20 |
Source: CMS Part D by Provider and Drug, 2017; 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.
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)
Physician Assistant
Physician Assistant (Certified)
Family Medicine
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated April 20, 2007.
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 Vista
- Anna Graves, PA-C
- Alexandra Huey, PA-C
- Mitchell Lange
- Jaclyn Dempsey, PA-C
- Alyssa Denbroeder, PA
- Talia Adams, PA-C
Mailing Address
587 3rd Ave
Chula Vista, CA 919105619
Phone: 6193823315