Dr. Felipe Fernandez Del Castillo, MD
- Medicare services, 2024
- 1,260
- Medicare patients, 2024
- 470
- Part D claims, 2024
- 4,154
- Hospital affiliations
- 2
- Industry payments
- $298
- Practice address
- 55 Lake Ave, Worcester, MA 01604
- Practice phone
- Call (508) 421-9539
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Pdi Worcester
Worcester, Massachusetts
Find Dr. Fernandez Del Castillo'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. Felipe Fernandez Del Castillo is a nephrologist in Worcester, Massachusetts
Dr. Fernandez Del Castillo practices at Pdi Worcester in Worcester, Massachusetts.
Dr. Fernandez Del Castillo's NPI, 1740639681, was assigned on June 10, 2016. Dr. Fernandez Del Castillo graduated from University of Massachusetts Medical School in 2016. Dr. Fernandez Del Castillo holds Massachusetts license 286110.
- NPI
- 1740639681NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5193016715
- NPI enumeration date
- June 10, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (508) 421-9539
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Felipe Fernandez Del Castillo practices at Pdi Worcester in Worcester, Massachusetts
Dr. Fernandez Del Castillo's primary practice is Pdi Worcester, at 55 Lake Ave, Worcester, MA 01604 in Worcester County. The practice phone is (508) 421-9539.
- Pdi Worcester55 Lake Ave, Worcester, MA 01604 · Worcester CountyPhone(508) 421-9539
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Felipe Fernandez Del Castillo is affiliated with 6 sites of care and 2 medical groups
Dr. Fernandez Del Castillo's primary practice is Pdi Worcester in Worcester, Massachusetts. Dr. Fernandez Del Castillo is also affiliated with Saint Vincent Hospital. The medical group on file is Atrius Health. Dmand AI also links Dr. Fernandez Del Castillo to 1 more hospital, 3 dialysis centers and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Felipe Fernandez Del Castillo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fernandez Del Castillo practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Pdi Worcester | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Felipe Fernandez Del Castillo is one of 351 nephrologists in Massachusetts
Nephrology is Dr. Fernandez Del Castillo's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dmand AI has Dr. Fernandez Del Castillo's licenses on file in 2 states: Massachusetts and Illinois.
Specialties and state licenses
- Nephrology, MassachusettsPrimary
- Internal medicine, Illinois
Nephrologists near Dr. Fernandez Del Castillo
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. Felipe Fernandez Del Castillo billed Medicare for 1,260 services in 2024
CMS data shows 1,260 Medicare services from Dr. Fernandez Del Castillo across 21 procedure codes in 2024, for 470 Medicare patients. Medicare paid $84,495 for them.
Dr. Fernandez Del Castillo's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5162024: 86267%
- Lab and pathology
- 2023: 792024: 337327%
- Surgery
- 2023: 02024: 47
- Tests and treatments
- 2023: 222024: 1436%
Where Dr. Fernandez Del Castillo's Medicare services took place, 2024
- In an office92874%
- In a facility33226%
Dr. Fernandez Del Castillo compared with the Massachusetts median for nephrologists, 2024
- Dr. Fernandez Del Castillo
- Massachusetts median
- Medicare services
- 1,260vs 70180% above
- Medicare patients
- 470vs 28267% above
- Part D claims
- 3,846vs 4718.2 times
Medians across 333 nephrologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Fernandez Del Castillo'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. Fernandez Del Castillo?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fernandez Del Castillo and other nephrologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Felipe Fernandez Del Castillo treated 470 Medicare patients in 2024, average age 75
CMS counts 470 Medicare patients who saw Dr. Fernandez Del Castillo in 2024. The largest group is 75 to 84, with 213 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 24% are also on Medicaid. Their average risk score is 2.20, 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. Fernandez Del Castillo's median patient age at 70, with 47% women.
Dr. Fernandez Del Castillo's Medicare patients by age, 2024
Dr. Fernandez Del Castillo's Medicare patients by sex, 2024
- Women23550%
- Men23550%
Chronic conditions among Dr. Fernandez Del Castillo's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes50%
- Arthritis47%
- Ischemic heart disease46%
- Heart failure40%
- Mood disorders35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fernandez Del Castillo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Felipe Fernandez Del Castillo wrote 4,154 Medicare Part D claims in 2024
In 2024, Dr. Fernandez Del Castillo wrote 4,154 Medicare Part D claims for 705 patients. 90% of them were for generic drugs. CMS names the drug for 3,846 of them, across 47 drugs with 11 or more claims each, at $479,786 in total drug cost. In 2023, CMS named 2,443 claims across 48 drugs.
Dr. Fernandez Del Castillo's Part D claims by kind of drug, 2024
- Generic3,737 claims90%
- Brand-name417 claims10%
Dr. Fernandez Del Castillo'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. Fernandez Del Castillo's Part D claims, 2024
- Antibiotics0%19 of 4,154 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: 2,4432024: 3,84657%
Drugs named by CMS: 47 in 2024, 48 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
Dr. Felipe Fernandez Del Castillo offers telehealth to Medicare patients
Dr. Fernandez Del Castillo accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Fernandez Del Castillo as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Felipe Fernandez Del Castillo received $298 in industry payments from 2022 to 2025
CMS Open Payments shows 5 general payments to Dr. Fernandez Del Castillo from 5 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 99% of the total. Calliditas Therapeutics US Inc. paid the most, $126.
General payments to Dr. Fernandez Del Castillo by program year, 2022 to 2025
General payments to Dr. Fernandez Del Castillo by kind, 2022 to 2025
- Food and beverage$29599%
- Education$31%
Companies that paid Dr. Fernandez Del Castillo the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Felipe Fernandez Del Castillo graduated from University of Massachusetts Medical School
Dr. Fernandez Del Castillo graduated from University of Massachusetts Medical School in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Felipe Fernandez Del Castillo'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 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 |
| 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. Felipe Fernandez Del Castillo
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. Felipe Fernandez Del Castillo's NPI number?
Dr. Felipe Fernandez Del Castillo's NPI number is 1740639681. It was assigned on June 10, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Felipe Fernandez Del Castillo?
Dr. Felipe Fernandez Del Castillo is a nephrologist in Worcester, Massachusetts. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Felipe Fernandez Del Castillo practice?
Dr. Fernandez Del Castillo practices at 55 Lake Ave, Worcester, MA 01604. Dr. Fernandez Del Castillo's primary practice is Pdi Worcester in Worcester, Massachusetts. Dmand AI also links Dr. Fernandez Del Castillo to 1 hospital, 3 dialysis centers and 1 medical group.
What is Dr. Felipe Fernandez Del Castillo's office phone number?
The practice phone on file for Dr. Fernandez Del Castillo is (508) 421-9539.
What is Dr. Felipe Fernandez Del Castillo's medical license number?
Dr. Fernandez Del Castillo holds Massachusetts license 286110, one of the licenses on file in 2 states.
Which states has Dr. Felipe Fernandez Del Castillo been licensed in?
Dmand AI has state licenses on file for Dr. Fernandez Del Castillo in Massachusetts and Illinois.
Which hospitals is Dr. Felipe Fernandez Del Castillo affiliated with?
Dr. Fernandez Del Castillo is affiliated with Saint Vincent Hospital. Dmand AI links Dr. Fernandez Del Castillo to 1 more hospital.
What medical group is Dr. Felipe Fernandez Del Castillo part of?
Dr. Fernandez Del Castillo is linked to Atrius Health. Dmand AI links Dr. Fernandez Del Castillo to 1 more medical group.
Does Dr. Felipe Fernandez Del Castillo accept Medicare?
Yes. CMS data shows Dr. Fernandez Del Castillo billed Medicare for 1,260 services in 2024, and Dr. Fernandez Del Castillo accepts Medicare assignment.
Does Dr. Felipe Fernandez Del Castillo offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Fernandez Del Castillo as offering telehealth services.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Felipe Fernandez Del Castillo see?
CMS counts 470 Medicare patients who saw Dr. Fernandez Del Castillo in 2024, with an average age of 75.
What services does Dr. Felipe Fernandez Del Castillo bill to Medicare?
In 2024, Dr. Fernandez Del Castillo's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and lab and pathology test (81003).
Where did Dr. Felipe Fernandez Del Castillo go to medical school?
Dr. Fernandez Del Castillo graduated from University of Massachusetts Medical School in 2016.
What drugs does Dr. Felipe Fernandez Del Castillo prescribe most?
In 2024 Medicare Part D data, Dr. Fernandez Del Castillo's most prescribed drugs by claims were Amlodipine Besylate, Lisinopril and Irbesartan.
Has Dr. Felipe Fernandez Del Castillo received payments from drug or device companies?
CMS Open Payments shows $298 in general payments to Dr. Fernandez Del Castillo from 5 companies from 2022 to 2025. The largest total came from Calliditas Therapeutics US Inc.
How long has Dr. Felipe Fernandez Del Castillo been practicing?
Dr. Fernandez Del Castillo graduated from medical school in 2016, 10 years ago.
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