Dr. Charerntas Toochinda, MD
- Medicare services, 2024
- 19
- Medicare patients, 2024
- 27
- Part D claims, 2024
- 15,530
- Hospital affiliations
- 1
- Industry payments
- $186
- Practice address
- 9961 Sierra Ave, Fontana, CA 92335
- Practice phone
- Call (909) 427-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Toochinda's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Charerntas Toochinda is an internist in Fontana, California
Dr. Toochinda practices at Fontana Medical Center in Fontana, California, part of Kaiser Permanente.
Dr. Toochinda's NPI, 1962550855, was assigned on January 8, 2007. Dr. Toochinda graduated from New York Medical College in 2000. Dr. Toochinda holds California license A81962.
- NPI
- 1962550855NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305819608
- NPI enumeration date
- January 8, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 427-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Charerntas Toochinda practices at Fontana Medical Center in Fontana, California
Dr. Toochinda's primary practice is Fontana Medical Center, at 9961 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-5000.
- Fontana Medical Center9961 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 427-5000
Source: Dmand AI Affiliation Data
Dr. Charerntas Toochinda is affiliated with 1 site of care and 1 medical group
Dr. Toochinda's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Charerntas Toochinda's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Toochinda practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fontana Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Kaiser Permanente and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Charerntas Toochinda is one of 16,751 internists in California
Internal medicine is Dr. Toochinda's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Toochinda is board certified in internal medicine by the American Board of Internal Medicine. Dr. Toochinda is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists bipolar disorder, chronic diabetes, chronic obstructive pulmonary disease (COPD), muscle pain, fibromyalgia, and limb pain and ovarian cyst among the conditions Dr. Toochinda treats.
Internists near Dr. Toochinda
Counts of internists 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. Charerntas Toochinda billed Medicare for 19 services in 2024
CMS data shows 19 Medicare services from Dr. Toochinda across 1 procedure code in 2024, all of them office visits, for 27 Medicare patients. Medicare paid $1,691 for them. Every service was in an office.
Dr. Toochinda's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 252024: 1924%
Dr. Toochinda compared with the California median for internists, 2024
- Dr. Toochinda
- California median
- Medicare services
- 19vs 36195% below
- Medicare patients
- 27vs 15182% below
- Part D claims
- 14,751vs 42135.0 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Toochinda's 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.
Need commercial claims for Dr. Toochinda?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Toochinda and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Charerntas Toochinda treated 27 Medicare patients in 2024, average age 66
CMS counts 27 Medicare patients who saw Dr. Toochinda in 2024. The largest group is 65 to 74, with 14 patients. 63% of them have high blood pressure, and 41% have diabetes. Their average risk score is 1.45, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Toochinda's median patient age at 57, with 64% women.
Dr. Toochinda's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Toochinda's Medicare patients, 2024
- High blood pressure63%
- Diabetes41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Toochinda's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women64%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Charerntas Toochinda wrote 15,530 Medicare Part D claims in 2024
In 2024, Dr. Toochinda wrote 15,530 Medicare Part D claims for 1,441 patients. 90% of them were for generic drugs. CMS names the drug for 14,751 of them, across 174 drugs with 11 or more claims each, at $744,694 in total drug cost. In 2023, CMS named 13,970 claims across 170 drugs.
Dr. Toochinda's Part D claims by kind of drug, 2024
- Generic13,975 claims90%
- Brand-name1,348 claims9%
- Other207 claims1%
Dr. Toochinda's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Toochinda's Part D claims, 2024
- Opioids9%1,460 of 15,530 claims
- Antibiotics3%455 of 15,530 claims
- Antipsychotics, patients 65 and over0%56 of 15,530 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 13,9702024: 14,7516%
Drugs named by CMS: 174 in 2024, 170 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Charerntas Toochinda takes part in Medicare
Dr. Toochinda accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Charerntas Toochinda received $186 in industry payments in 2018
CMS Open Payments shows 3 general payments to Dr. Toochinda from 3 drug and device companies in 2018. Food and beverage make up the largest share, 100% of the total. kaleo, Inc. paid the most, $72.
Companies that paid Dr. Toochinda the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Charerntas Toochinda graduated from New York Medical College
Dr. Toochinda graduated from New York Medical College in 2000.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Charerntas Toochinda accepts plans from 2 insurance carriers
Dr. Toochinda is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Toochinda accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Charerntas Toochinda's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Charerntas Toochinda
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. Charerntas Toochinda's NPI number?
Dr. Charerntas Toochinda's NPI number is 1962550855. It was assigned on January 8, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Charerntas Toochinda?
Dr. Charerntas Toochinda is an internist in Fontana, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Charerntas Toochinda practice?
Dr. Toochinda practices at 9961 Sierra Ave, Fontana, CA 92335. Dr. Toochinda's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente.
What is Dr. Charerntas Toochinda's office phone number?
The practice phone on file for Dr. Toochinda is (909) 427-5000.
What is Dr. Charerntas Toochinda's medical license number?
Dr. Toochinda holds California license A81962.
Which hospitals is Dr. Charerntas Toochinda affiliated with?
Dr. Toochinda practices at Fontana Medical Center in Fontana, California.
What medical group is Dr. Charerntas Toochinda part of?
Dr. Toochinda is linked to Southern California Permanente Medical Group.
Does Dr. Charerntas Toochinda accept Medicare?
Yes. CMS data shows Dr. Toochinda billed Medicare for 19 services in 2024, and Dr. Toochinda accepts Medicare assignment.
How many Medicare patients does Dr. Charerntas Toochinda see?
CMS counts 27 Medicare patients who saw Dr. Toochinda in 2024, with an average age of 66.
Is Dr. Charerntas Toochinda board certified?
Yes. Dr. Toochinda is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Charerntas Toochinda bill to Medicare?
In 2024, Dr. Toochinda's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Charerntas Toochinda go to medical school?
Dr. Toochinda graduated from New York Medical College in 2000.
What drugs does Dr. Charerntas Toochinda prescribe most?
In 2024 Medicare Part D data, Dr. Toochinda's most prescribed drugs by claims were Atorvastatin Calcium, Hydrocodone-Acetaminophen and Losartan Potassium.
Has Dr. Charerntas Toochinda received payments from drug or device companies?
CMS Open Payments shows $186 in general payments to Dr. Toochinda from 3 companies from 2018 to 2018. The largest total came from kaleo, Inc.
How long has Dr. Charerntas Toochinda been practicing?
Dr. Toochinda graduated from medical school in 2000, 26 years ago.
What insurance does Dr. Charerntas Toochinda accept?
Dr. Toochinda is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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