Robert D. Johnson , PA-C
Physician Assistant • Stockton, CA
2545 W. Hammer Ln.
Stockton, CA 952097597
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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Robert Johnson is listed in NPPES under Physician Assistant.
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NPI assigned on July 13, 2006; this date does not establish years in practice.
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Published CMS data list 1,842 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:
- J3301 — Injection, triamcinolone acetonide, not otherwise specified, 10 mg: 829 service units.
- 20610 — Aspiration and/or injection of fluid from large joint: 226 service units.
- 99213 — Established patient outpatient office visit: 192 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 15 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 981 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:
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) — 368 prescription fills, including refills.
- Celecoxib — 290 prescription fills, including refills.
- Meloxicam — 143 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 8 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 85% of clinicians listed under Physician Assistant in Stockton, CA (2024, 24 clinicians with data). Median for this group: 222. Middle half: 77 to 419.
More Medicare Part B services than 90% 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 – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 1,209 in 2020 to 1,842 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
2545 W. Hammer Ln.
Stockton, CA 952097597
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Sutter Valley Medical Foundation. See the list
Source: CMS Doctors and Clinicians National Downloadable File, 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
2002
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
414 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 $91,166 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 $67,315 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
1,010 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
$11,926 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.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $85.31 in 2021
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2021.
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)
Robert Johnson 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 Robert Johnson 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 Stockton and California
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 85% of clinicians listed under Physician Assistant in Stockton, CA (2024, 24 clinicians with data). Median for this group: 222. Middle half: 77 to 419.
More Medicare Part B services than 90% 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 85% of clinicians listed under Physician Assistant in Stockton, CA (2024, 24 clinicians with data). Median for this group: $19,874. Middle half: $6,912 to $39,356.
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 85% of clinicians listed under Physician Assistant in Stockton, CA (2024, 24 clinicians with data). Median for this group: $15,141. Middle half: $4,695 to $29,184.
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
More Part D prescriptions than 80% of clinicians listed under Physician Assistant in Stockton, CA (2024, 38 clinicians with data). Median for this group: 187. Middle half: 42 to 579.
More Part D prescriptions than 80% 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 65% of clinicians listed under Physician Assistant in Stockton, CA (2024, 38 clinicians with data). Median for this group: $3,016. Middle half: $429 to $35,326.
A higher Part D drug cost than 60% 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.
66 active clinicians are listed under Physician Assistant with a practice address in Stockton, CA (14,458 in California).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Stockton
12.1% of these 66 clinicians have the CMS telehealth indicator.
48.5% of these 66 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 increased 52% from 1,209 in 2020 to 1,842 in 2024.
- 2020: 1,209
- 2021: 2,317
- 2022: 1,300
- 2023: 940
- 2024: 1,842
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Medicare-allowed amount
Medicare-allowed amount varied from year to year: $100,431 in 2020 and $91,166 in 2024.
- 2020: $100,431
- 2021: $161,164
- 2022: $83,537
- 2023: $75,165
- 2024: $91,166
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Paid by Medicare
Paid by Medicare decreased 14% from $78,058 in 2020 to $67,315 in 2024.
- 2020: $78,058
- 2021: $126,889
- 2022: $60,871
- 2023: $54,317
- 2024: $67,315
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Medicare Part D prescriptions
Medicare Part D prescriptions varied from year to year: 900 in 2020 and 981 in 2024.
- 2020: 900
- 2021: 694
- 2022: 431
- 2023: 793
- 2024: 981
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30-day fills
30-day fills varied from year to year: 988 in 2020 and 1,010 in 2024.
- 2020: 988
- 2021: 755
- 2022: 442
- 2023: 831
- 2024: 1,010
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Part D drug cost
Part D drug cost decreased 52% from $24,849 in 2020 to $11,926 in 2024.
- 2020: $24,849
- 2021: $22,248
- 2022: $12,725
- 2023: $14,517
- 2024: $11,926
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2021 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2021), 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 2021 (payments made January 1 – December 31, 2021): fewer than 11 records totaling $85.31.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Amgen Inc. |
Food and Beverage
In-kind items and services
|
Prolia | General | $85.31 |
Source: CMS Open Payments, program year 2021, 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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J3301
Injection, triamcinolone acetonide, not otherwise specified, 10 mg
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829 | 113 | $7.00 | $0.99 |
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20610
Aspiration and/or injection of fluid from large joint
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226 | 126 | $270.20 | $62.73 |
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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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192 | 133 | $243.00 | $77.39 |
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J7323
Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose
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112 | 28 | $465.00 | $121.23 |
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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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95 | 84 | $357.00 | $109.36 |
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27447
Replacement of knee joint, both sides of knee
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79 | 77 | $828.51 | $170.95 |
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20985
Computer-assisted surgery for muscle and bone procedure
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75 | 73 | $81.87 | $18.78 |
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20611
Aspiration and/or injection of fluid large joint using ultrasound guidance
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68 | 44 | $492.57 | $104.76 |
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J1040
Injection, methylprednisolone acetate, 80 mg
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34 | 28 | $37.00 | $9.70 |
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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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29 | 29 | $542.00 | $141.78 |
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27130
Replacement of thigh bone and hip joint with prosthesis
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28 | 26 | $785.67 | $171.22 |
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29075
Application of elbow to finger cast
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22 | 18 | $364.00 | $74.73 |
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Q4010
Cast supplies, short arm cast, adult (11 years +), fiberglass
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22 | 17 | $57.00 | $22.81 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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16 | 16 | $479.00 | $155.30 |
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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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15 | 15 | $358.00 | $95.92 |
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 |
|---|---|---|---|---|---|
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 368 | 2,920 | $3,717.72 | 182 |
| Celecoxib | Celecoxib | 290 | 8,972 | $6,701.15 | 120 |
| Meloxicam | Meloxicam | 143 | 4,470 | $436.72 | 64 |
| Duloxetine Hcl | Duloxetine Hcl | 62 | 849 | $476.99 | 59 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 48 | 310 | $314.64 | 30 |
| Tramadol Hcl | Tramadol Hcl | 29 | 193 | $53.13 | 19 |
| Ondansetron Odt | Ondansetron | 21 | 132 | $200.32 | 17 |
| Amoxicillin | Amoxicillin | 20 | 23 | $25.76 | 12 |
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: 2023-05-07NUCC 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
I20220617000611
CA
0143299313
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Sutter Valley Medical Foundation
2545 W Hammer Ln, Stockton, CA 952092839
Phone: 2099577050
Sutter Valley Medical Foundation
815 Court St, Jackson, CA 956422154
Sutter Valley Medical Foundation
600 Coffee Rd, Modesto, CA 953554201
Phone: 2095241211
Sutter Valley Medical Foundation
2800 L St, Sacramento, CA 958165616
Sutter Valley Medical Foundation
2505 W Hammer Ln, Stockton, CA 952092839
Phone: 2099577050
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Orthopaedic Surgery
Doctor of Medicine (M.D.)
Orthopaedic Surgery
Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)
Podiatrist
Doctor of Podiatric Medicine
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 2545 W. HAMMER LN., STOCKTON, CA 952097597 (Tel: 2099481641)
Registered at PO BOX 255228, SACRAMENTO, CA 95865
Physician Assistant (license number reported to NPPES: CA PA60674)
Registered at 2111 OGDEN AVE, AURORA, IL 605047597 (Tel: 6309783800)
Physician Assistant (license number reported to NPPES: IL 085001819)
NPI status registered as active in NPPES database
Registered at 1256 WATERFORD DRIVE, SUITE 230, AUROA, IL 60504 (Tel: 6304992404)
Registered at 2111 OGDEN AVE, AURORA, IL 605047597 (Tel: 6309783800)
Recorded as ROBERT JOHNSON, PA-C
Physician Assistant (license number reported to NPPES: IL 085001819)
NPI status registered as active in NPPES database
Registered at 2111 OGDEN AVE, AURORA, IL 605047597 (Tel: 6309783800)
Registered at 2040 OGDEN AVENUE, STE. 313, AUROA, IL 60504 (Tel: 6304992404)
Recorded as ROBERT JOHNSON, PA-C
Physician Assistant (license number reported to NPPES: IL 085001819)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Stockton
- Alvaro Garay, PA-C
- Alicia Conway, MPH, PA-C
- Randy Hunt, PA-C
- Crystal Chavez, PA-C
- Rabia Akhtar, PA
- Randal Pinnelli, PA
Mailing Address
Po Box 255228
Sacramento, CA 95865