Dr. Charles J. Fredericks, MD

  • French Camp, CA
  • General surgeon
NPI1952747628PAC ID8325346430
Medicare services, 2024
153
Medicare patients, 2024
105
Publications
17
MIPS score, 2024
82
Hospital affiliations
2
Practice address
500 W Hospital Road, French Camp, CA 95231
Practice phone
Call (209) 468-6000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

San Joaquin General Hospital

Hospital · French Camp, California

See all 6 affiliations

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Dr. Charles J. Fredericks is a general surgeon in French Camp, California

Dr. Fredericks practices at San Joaquin General Hospital in French Camp, California, part of County of San Joaquin.

Dr. Fredericks' NPI, 1952747628, was assigned on May 21, 2013. Dr. Fredericks graduated from Rutgers New Jersey Medical School in 2013. Dr. Fredericks holds California license A161492.

NPI and contact details
Medicare PAC ID
8325346430
NPI enumeration date
May 21, 2013
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(209) 468-6000
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
39
Medical school graduation
2013

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Charles J. Fredericks practices at San Joaquin General Hospital in French Camp, California

Dr. Fredericks' primary practice is San Joaquin General Hospital, at 500 W Hospital Road, French Camp, CA 95231 in San Joaquin County. The practice phone is (209) 468-6000.

Source: Dmand AI Affiliation Data

Dr. Charles J. Fredericks is affiliated with 3 sites of care and 3 medical groups

Dr. Fredericks' primary practice is San Joaquin General Hospital in French Camp, California, part of County of San Joaquin. Dr. Fredericks is also affiliated with UC Davis Medical Center. The medical group on file is UC Davis Medical Group. Dmand AI also links Dr. Fredericks to 2 more medical groups and 1 community health center, each named with a free account.

See all 6 affiliations for Dr. Fredericks

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Charles J. Fredericks' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fredericks practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
San Joaquin General HospitalAvailable with a free account
+2 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dmand AI maps EHR vendors, IT decision makers and buying committees across County of San Joaquin and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Charles J. Fredericks is one of 2,926 general surgeons in California

Surgery is Dr. Fredericks' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Fredericks is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Fredericks' licenses on file in 4 states: California, Illinois, Tennessee and Colorado.

Specialties and state licenses

  • Surgery, CaliforniaPrimaryLicense A161492 · 2019 to 2027 · taxonomy 208600000X
  • Illinois licenseLicense 125-063161 · 2013 to 2019
  • Tennessee license1996 to 2018
  • Colorado license1982 to 2017

Clinical focus

Dmand AI lists chest trauma, collapsed lung, multiple traumatic injuries, non-surgical back problems and traumatic coma among the conditions Dr. Fredericks treats.

General surgeons near Dr. Fredericks

Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Charles J. Fredericks billed Medicare for 153 services in 2024

CMS data shows 153 Medicare services from Dr. Fredericks across 4 procedure codes in 2024, for 105 Medicare patients. Medicare paid $13,888 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024153
Medicare patients105
Paid by Medicare$13,888
Procedure codes4

Dr. Fredericks' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1552024: 1531%

Dr. Fredericks compared with the California median for general surgeons, 2024

  • Dr. Fredericks
  • California median
Medicare services
153vs 1668% below
Medicare patients
105vs 12113% below

Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.

Dr. Fredericks' most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Fredericks

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Charles J. Fredericks treated 105 Medicare patients in 2024, average age 77

CMS counts 105 Medicare patients who saw Dr. Fredericks in 2024. The largest group is 85 and over, with 38 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 48% are also on Medicaid. Their average risk score is 1.83, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Fredericks' median patient age at 44, with 37% women.

Medicare patients, 2024105
Average age77
Average risk score1.83
Also on Medicaid48%

Dr. Fredericks' Medicare patients by age, 2024

Dr. Fredericks' Medicare patients by sex, 2024

  • Women4846%
  • Men5754%

Chronic conditions among Dr. Fredericks' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Diabetes46%
  4. Chronic kidney disease45%
  5. Arthritis43%
  6. Heart failure38%
  7. Atrial fibrillation36%
  8. Mood disorders34%

Share of Medicare patients with each condition. A patient can have several.

Dr. Fredericks' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 44

Patient panel by sex, all payers

  • Women37%
  • Men63%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Charles J. Fredericks scored 82 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Fredericks for performance year 2024, reported as part of a group. Dr. Fredericks accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Fredericks' MIPS scores, performance year 2024

  • 82of 100Final score
  • 71.6of 100Quality
  • 40of 100Improvement Activities
  • 58of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Charles J. Fredericks has 17 publications on record

Dmand AI links 17 papers to Dr. Fredericks, published from 2015 to 2021. 2020 was the busiest year, with 3. The most frequent topics are Body Surface Area, Burns and Computed Tomography Angiography. Dr. Fredericks has published most often in Am Surg. Dr. Fredericks' most frequent co-authors are Faran Bokhari, MD, James Reidar Yon, MD and James R. Yon, MD.

Papers17
Years published2015 to 2021

Dr. Fredericks' papers by year, 2015 to 2021

Topics Dr. Fredericks writes about most

  • Body Surface Area
  • Burns
  • Computed Tomography Angiography
  • Hidradenitis Suppurativa
  • Laparoscopy
  • Wounds, Gunshot

Dr. Fredericks' most frequent co-authors

Recent publications by Dr. Fredericks

See all 17 publications and co-authors

See who Dr. Fredericks researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Fredericks works with, so you can find a warm path to the right general surgeons.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Charles J. Fredericks received $64 in industry payments in 2016

CMS Open Payments shows 2 general payments to Dr. Fredericks from 2 drug and device companies in 2016. Food and beverage make up the largest share, 100% of the total. Mallinckrodt LLC paid the most, $45.

Companies that paid Dr. Fredericks the most, 2016 to 2016

Share is of all general payments to this clinician.

See all payments to Dr. Fredericks

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Charles J. Fredericks graduated from Rutgers New Jersey Medical School

Dr. Fredericks graduated from Rutgers New Jersey Medical School in 2013.

  1. Medical schoolRutgers New Jersey Medical School
  2. Board certified in surgeryAmerican Board of Surgery
  3. Board certified in surgical critical careAmerican Board of Surgery

Source: Dmand AI Professional Profile Data

Dr. Charles J. Fredericks accepts plans from 2 insurance carriers

Dr. Fredericks is in network with 2 carriers, including CMS Medicare and NV State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • CMS Medicare
  • NV State Medicaid

Plan types Dr. Fredericks accepts, by number of carriers

  1. Medicaid1
  2. Medicare1

Source: Dmand AI Insurance Network Data

Sources for Dr. Charles J. Fredericks's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Charles J. Fredericks

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Charles J. Fredericks' NPI number?

Dr. Charles J. Fredericks' NPI number is 1952747628. It was assigned on May 21, 2013, and it is active in the NPI Registry.

What kind of doctor is Dr. Charles J. Fredericks?

Dr. Charles J. Fredericks is a general surgeon in French Camp, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Charles J. Fredericks practice?

Dr. Fredericks practices at 500 W Hospital Road, French Camp, CA 95231. Dr. Fredericks' primary practice is San Joaquin General Hospital in French Camp, California, part of County of San Joaquin. Dmand AI also links Dr. Fredericks to 2 medical groups and 1 community health center.

What is Dr. Charles J. Fredericks' office phone number?

The practice phone on file for Dr. Fredericks is (209) 468-6000.

What is Dr. Charles J. Fredericks' medical license number?

Dr. Fredericks holds California license A161492, one of the licenses on file in 4 states.

Which states has Dr. Charles J. Fredericks been licensed in?

Dmand AI has state licenses on file for Dr. Fredericks in California (2019 to 2027), Illinois (2013 to 2019), Tennessee (1996 to 2018) and Colorado (1982 to 2017).

Which hospitals is Dr. Charles J. Fredericks affiliated with?

Dr. Fredericks practices at San Joaquin General Hospital in French Camp, California. Dr. Fredericks is also affiliated with UC Davis Medical Center.

What medical group is Dr. Charles J. Fredericks part of?

Dr. Fredericks is linked to UC Davis Medical Group. Dmand AI links Dr. Fredericks to 2 more medical groups.

Does Dr. Charles J. Fredericks accept Medicare?

Yes. CMS data shows Dr. Fredericks billed Medicare for 153 services in 2024, and Dr. Fredericks accepts Medicare assignment.

What is Dr. Charles J. Fredericks' MIPS score?

Dr. Fredericks' MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.

Show 9 more questionsShow fewer questions

How many Medicare patients does Dr. Charles J. Fredericks see?

CMS counts 105 Medicare patients who saw Dr. Fredericks in 2024, with an average age of 77.

Is Dr. Charles J. Fredericks board certified?

Yes. Dr. Fredericks is board certified in surgery by the American Board of Surgery.

What services does Dr. Charles J. Fredericks bill to Medicare?

In 2024, Dr. Fredericks' most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99223) and hospital inpatient care (99233).

Where did Dr. Charles J. Fredericks go to medical school?

Dr. Fredericks graduated from Rutgers New Jersey Medical School in 2013.

Has Dr. Charles J. Fredericks received payments from drug or device companies?

CMS Open Payments shows $64 in general payments to Dr. Fredericks from 2 companies from 2016 to 2016. The largest total came from Mallinckrodt LLC.

How long has Dr. Charles J. Fredericks been practicing?

Dr. Fredericks graduated from medical school in 2013, 13 years ago.

Does Dr. Charles J. Fredericks do research?

Dmand AI links 17 publications to Dr. Fredericks, published from 2015 to 2021.

Who does Dr. Charles J. Fredericks publish with?

Dr. Fredericks' most frequent co-authors are Faran Bokhari, MD (9 shared papers), James Reidar Yon, MD (7 shared papers) and James R. Yon, MD (7 shared papers).

What insurance does Dr. Charles J. Fredericks accept?

Dr. Fredericks is in network with 2 carriers, including CMS Medicare and NV State Medicaid. Medicaid plans come from the most carriers, 1. Check the plan with the practice before a visit.

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