Dr. Freddy S. Calderon, MD
- Medicare patients, 2024
- 13
- Part D claims, 2024
- 699
- Industry payments
- $88
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 1601 W Ave J, Lancaster, CA 93534
- Practice phone
- Call (661) 729-5680
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Fmc Dialysis Services of Antelope Valley
Lancaster, California
Find Dr. Calderon'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. Freddy S. Calderon is a nephrologist in Lancaster, California
Dr. Calderon practices at Fmc Dialysis Services of Antelope Valley in Lancaster, California.
Dr. Calderon's NPI, 1932316338, was assigned on May 16, 2007. Dr. Calderon graduated from Universidad Autonoma de Guadalajara in 2003. Dr. Calderon holds California license A96401.
- NPI
- 1932316338NPI Registry (opens in a new tab)
- NPI enumeration date
- May 16, 2007
- NPI status
- Active
- Practice phone
- (661) 729-5680
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Freddy S. Calderon practices at Fmc Dialysis Services of Antelope Valley in Lancaster, California
Dr. Calderon's primary practice is Fmc Dialysis Services of Antelope Valley, at 1601 W Ave J, Lancaster, CA 93534 in Los Angeles County. The practice phone is (661) 729-5680.
- Fmc Dialysis Services of Antelope Valley1601 W Ave J, Lancaster, CA 93534 · Los Angeles CountyPhone(661) 729-5680
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Freddy S. Calderon is affiliated with 2 sites of care and 1 medical group
Dr. Calderon's primary practice is Fmc Dialysis Services of Antelope Valley in Lancaster, California. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Calderon to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Freddy S. Calderon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Calderon practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fmc Dialysis Services of Antelope Valley | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Freddy S. Calderon is one of 1,401 nephrologists in California
Nephrology is Dr. Calderon's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Calderon is board certified in internal medicine by the American Board of Internal Medicine. Dr. Calderon is licensed in California.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
Clinical focus
Dmand AI lists chronic diabetes and chronic kidney disease among the conditions Dr. Calderon treats.
Nephrologists near Dr. Calderon
Counts of nephrologists 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. Freddy S. Calderon treated 13 Medicare patients in 2024, average age 68
CMS counts 13 Medicare patients who saw Dr. Calderon in 2024. The largest group is 85 and over, with 0 patients. 75% of them have chronic kidney disease. Their average risk score is 1.87, 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. Calderon's median patient age at 69, with 46% women.
Dr. Calderon's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Calderon's Medicare patients, 2024
- Chronic kidney disease75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Calderon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women46%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Freddy S. Calderon wrote 699 Medicare Part D claims in 2024
In 2024, Dr. Calderon wrote 699 Medicare Part D claims for 156 patients. 94% of them were for generic drugs. CMS names the drug for 558 of them, across 21 drugs with 11 or more claims each, at $64,310 in total drug cost. In 2023, CMS named 530 claims across 18 drugs.
Dr. Calderon's Part D claims by kind of drug, 2024
- Generic655 claims94%
- Brand-name and other44 claims6%
Dr. Calderon'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. Calderon's Part D claims, 2024
- Antibiotics7%50 of 699 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: 5302024: 5585%
Drugs named by CMS: 21 in 2024, 18 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
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Dr. Freddy S. Calderon received $88 in industry payments from 2017 to 2023
CMS Open Payments shows 4 general payments to Dr. Calderon from 2 drug and device companies from 2017 to 2023. Food and beverage make up the largest share, 100% of the total. Baxter Healthcare paid the most, $49.
General payments to Dr. Calderon by program year, 2017 to 2023
Companies that paid Dr. Calderon the most, 2017 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Freddy S. Calderon graduated from Universidad Autonoma de Guadalajara
Dr. Calderon graduated from Universidad Autonoma de Guadalajara in 2003.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Freddy S. Calderon accepts plans from 2 insurance carriers
Dr. Calderon 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. Calderon accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Freddy S. Calderon'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| 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) |
| 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. Freddy S. Calderon
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. Freddy S. Calderon's NPI number?
Dr. Freddy S. Calderon's NPI number is 1932316338. It was assigned on May 16, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Freddy S. Calderon?
Dr. Freddy S. Calderon is a nephrologist in Lancaster, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Freddy S. Calderon practice?
Dr. Calderon practices at 1601 W Ave J, Lancaster, CA 93534. Dr. Calderon's primary practice is Fmc Dialysis Services of Antelope Valley in Lancaster, California. Dmand AI also links Dr. Calderon to 1 group practice or clinic.
What is Dr. Freddy S. Calderon's office phone number?
The practice phone on file for Dr. Calderon is (661) 729-5680.
What is Dr. Freddy S. Calderon's medical license number?
Dr. Calderon holds California license A96401.
What medical group is Dr. Freddy S. Calderon part of?
Dr. Calderon is linked to Southern California Permanente Medical Group.
How many Medicare patients does Dr. Freddy S. Calderon see?
CMS counts 13 Medicare patients who saw Dr. Calderon in 2024, with an average age of 68.
Is Dr. Freddy S. Calderon board certified?
Yes. Dr. Calderon is board certified in internal medicine by the American Board of Internal Medicine.
Where did Dr. Freddy S. Calderon go to medical school?
Dr. Calderon graduated from Universidad Autonoma de Guadalajara in 2003.
What drugs does Dr. Freddy S. Calderon prescribe most?
In 2024 Medicare Part D data, Dr. Calderon's most prescribed drugs by claims were Calcitriol, Furosemide and Amlodipine Besylate.
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Has Dr. Freddy S. Calderon received payments from drug or device companies?
CMS Open Payments shows $88 in general payments to Dr. Calderon from 2 companies from 2017 to 2023. The largest total came from Baxter Healthcare.
How long has Dr. Freddy S. Calderon been practicing?
Dr. Calderon graduated from medical school in 2003, 23 years ago.
What insurance does Dr. Freddy S. Calderon accept?
Dr. Calderon 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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