Mackenzie Upton , PA-C
Physician Assistant β’ Turlock, CA
1200 W Main St
Turlock, CA 953805107
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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Mackenzie Upton is listed in NPPES under Physician Assistant.
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NPI assigned on March 18, 2024; this date does not establish years in practice.
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Published CMS data list 243 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Metformin Hcl β 43 prescription fills, including refills.
- Atorvastatin Calcium β 29 prescription fills, including refills.
- Albuterol Sulfate Hfa (Albuterol Sulfate) β 26 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers β by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 12 records in the table Β· Guide: How to read Medicare Part D prescriber data
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Close to the middle for Part D prescriptions among clinicians listed under Physician Assistant in Turlock, CA (2024, 21 clinicians with data). Median for this group: 235. Middle half: 129 to 459.
Close to the middle for Part D prescriptions among 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 β by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
Practice Location & Contact Primary Location
1200 W Main St
Turlock, CA 953805107
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
496 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
$2,427 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 β by Provider and Drug, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2021β2025.
NPI first issued
2024
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, βDoes your provider accept Medicare as full payment?β
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)
Mackenzie Upton 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 Mackenzie Upton 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 Turlock and California
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Physician Assistant in Turlock, CA (2024, 21 clinicians with data). Median for this group: 235. Middle half: 129 to 459.
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
Close to the middle for clinicians listed under Physician Assistant in Turlock, CA (2024, 21 clinicians with data). Median for this group: $2,397. Middle half: $866 to $39,474.
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.
29 active clinicians are listed under Physician Assistant with a practice address in Turlock, CA (14,458 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Turlock
3.4% of these 29 clinicians have the CMS telehealth indicator.
41.4% of these 29 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
CMS data for Part D prescriptions are available for 2024 only.
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30-day fills
CMS data for 30-day fills are available for 2024 only.
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Part D drug cost
CMS data for Part D drug cost are available for 2024 only.
Sources: CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
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 |
|---|---|---|---|---|---|
| Metformin Hcl | Metformin Hcl | 43 | 2,812 | $209.03 | 24 |
| Atorvastatin Calcium | Atorvastatin Calcium | 29 | 2,550 | $288.43 | 25 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 26 | 453 | $754.91 | β |
| Lisinopril | Lisinopril | 20 | 1,554 | $157.91 | 14 |
| Gabapentin | Gabapentin | 18 | 780 | $177.43 | 11 |
| Amlodipine Besylate | Amlodipine Besylate | 18 | 1,110 | $41.80 | 13 |
| Losartan Potassium | Losartan Potassium | 18 | 1,110 | $138.25 | β |
| Hydrochlorothiazide | Hydrochlorothiazide | 16 | 1,008 | $40.23 | β |
| Levothyroxine Sodium | Levothyroxine Sodium | 15 | 1,110 | $311.88 | β |
| Meloxicam | Meloxicam | 14 | 540 | $86.66 | β |
| Naproxen | Naproxen | 14 | 405 | $97.84 | β |
| Glipizide | Glipizide | 12 | 1,080 | $122.21 | β |
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: 2025-12-15NUCC 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
I20240425000940
CA
2567802440
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.
Internal Medicine
Doctor of Medicine (M.D.)
Dentist
Doctor of Dental Surgery
Podiatrist
Doctor of Podiatric Medicine
Podiatrist - Primary Podiatric Medicine
Doctor of Podiatric Medicine
Physician Assistant
Physician Assistant
Physician Assistant
Physician Assistant (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1200 W MAIN ST, TURLOCK, CA 953805107 (Tel: 2097224842)
Recorded as MACKENZIE UPTON, PA-C
NPI status registered as active in NPPES database
Registered at 857 W CHILDS AVE, MERCED, CA 953416862 (Tel: 2097224842)
Registered at 1200 W MAIN ST, TURLOCK, CA 953805107 (Tel: 2097224842)
Recorded as MACKENZIE SCHISSLER, PA-C
Physician Assistant (license number reported to NPPES: CA PA64256)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Turlock
- Elizabeth Kepley, PA-C
- Timothy Wootten, PA
- Neal Mathew, PA-C
- Ryan Higgins, PA
- Samantha Walker, PA-C
- Rajpreet Kaur
Mailing Address
1200 W Main St
Turlock, CA 953805107
Phone: 2097224842