Kidney Blood Press Res
CreatinineDiabetes Mellitus, Type 2Fenofibrate
Dr. Cesar F. Hernandez-Arroyo, MD
NPI1528473733PAC ID5092024737
- Medicare services, 2024
- 58
- Medicare patients, 2024
- 35
- Part D claims, 2024
- 2,246
- Publications
- 3
- Hospital affiliations
- 1
- Practice address
- 5020 American Family Dr., Suite 100, Madison, WI 53718
- Practice phone
- Call (608) 621-2001
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Azura Surgery Center Madison
Surgery Center - Medicare-Certified · Madison, Wisconsin
Find Dr. Hernandez-Arroyo's professional email, personal email and mobile number
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Dr. Cesar F. Hernandez-Arroyo is a nephrologist in Madison, Wisconsin
Dr. Hernandez-Arroyo practices at Azura Surgery Center Madison in Madison, Wisconsin.
Dr. Hernandez-Arroyo's NPI, 1528473733, was assigned on June 25, 2014. Dr. Hernandez-Arroyo graduated from San Juan Bautista School of Medicine in 2011. Dr. Hernandez-Arroyo holds Puerto Rico license 19128.
NPI and contact details
- NPI
- 1528473733NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5092024737
- NPI enumeration date
- June 25, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (608) 621-2001
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Cesar F. Hernandez-Arroyo practices at Azura Surgery Center Madison in Madison, Wisconsin
Dr. Hernandez-Arroyo's primary practice is Azura Surgery Center Madison, at 5020 American Family Dr., Suite 100, Madison, WI 53718. The practice phone is (608) 621-2001.
- Azura Surgery Center Madison5020 American Family Dr., Suite 100, Madison, WI 53718Phone(608) 621-2001
Source: Dmand AI Affiliation Data
Dr. Cesar F. Hernandez-Arroyo is affiliated with 4 sites of care and 2 medical groups
Dr. Hernandez-Arroyo's primary practice is Azura Surgery Center Madison in Madison, Wisconsin. Dr. Hernandez-Arroyo is also affiliated with Hospital Auxilio Mutuo. The medical group on file is Vascular Access Center. Dmand AI also links Dr. Hernandez-Arroyo to 1 more physician office, 1 ambulatory surgery center and 1 medical group, each named with a free account.
Azura Surgery Center MadisonPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Cesar F. Hernandez-Arroyo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hernandez-Arroyo practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Azura Surgery Center Madison | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Cesar F. Hernandez-Arroyo is one of 168 nephrologists in Wisconsin
Nephrology is Dr. Hernandez-Arroyo's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dmand AI has Dr. Hernandez-Arroyo's licenses on file in 2 states: Puerto Rico and Wisconsin.
Specialties and state licenses
- Nephrology, Puerto RicoPrimary
- Wisconsin license
Nephrologists near Dr. Hernandez-Arroyo
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. Cesar F. Hernandez-Arroyo billed Medicare for 58 services in 2024
CMS data shows 58 Medicare services from Dr. Hernandez-Arroyo across 2 procedure codes in 2024, for 35 Medicare patients. Medicare paid $4,598 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202458
Medicare patients35
Paid by Medicare$4,598
Procedure codes2
Dr. Hernandez-Arroyo's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 602024: 3443%
- Surgery
- 2023: 212024: 2414%
- Other services
- 2023: 5502024: 0100%
- Office and hospital visits
- 2023: 842024: 0100%
Dr. Hernandez-Arroyo compared with the Wisconsin median for nephrologists, 2024
- Dr. Hernandez-Arroyo
- Wisconsin median
- Medicare services
- 58vs 67791% below
- Medicare patients
- 35vs 23685% below
- Part D claims
- 1,852vs 6512.8 times
Medians across 167 nephrologists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Hernandez-Arroyo'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Cesar F. Hernandez-Arroyo treated 35 Medicare patients in 2024, average age 68
CMS counts 35 Medicare patients who saw Dr. Hernandez-Arroyo in 2024. The largest group is under 65, with 12 patients. 75% of them have chronic kidney disease, and 75% have diabetes. 46% are also on Medicaid. Their average risk score is 5.47, 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. Hernandez-Arroyo's median patient age at 65, with 37% women.
Medicare patients, 202435
Average age68
Average risk score5.47
Also on Medicaid46%
Dr. Hernandez-Arroyo's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hernandez-Arroyo's Medicare patients by sex, 2024
- Women2057%
- Men1543%
Chronic conditions among Dr. Hernandez-Arroyo's Medicare patients, 2024
- Chronic kidney disease75%
- Diabetes75%
- High blood pressure75%
- High cholesterol74%
- Heart failure31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hernandez-Arroyo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
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. Cesar F. Hernandez-Arroyo wrote 2,246 Medicare Part D claims in 2024
In 2024, Dr. Hernandez-Arroyo wrote 2,246 Medicare Part D claims for 399 patients. 76% of them were for generic drugs. CMS names the drug for 1,852 of them, across 38 drugs with 11 or more claims each, at $269,201 in total drug cost. In 2023, CMS named 1,873 claims across 39 drugs.
Part D claims, 20242,246
Drugs named by CMS38
Total drug cost$269,201
Part D patients399
Dr. Hernandez-Arroyo's Part D claims by kind of drug, 2024
- Generic1,706 claims76%
- Brand-name513 claims23%
- Other27 claims1%
Dr. Hernandez-Arroyo'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. Hernandez-Arroyo's Part D claims, 2024
- Antibiotics1%22 of 2,246 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: 1,8732024: 1,8521%
Drugs named by CMS: 38 in 2024, 39 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. Cesar F. Hernandez-Arroyo takes part in Medicare
Dr. Hernandez-Arroyo 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. Cesar F. Hernandez-Arroyo has 3 publications on record
Dmand AI links 3 papers to Dr. Hernandez-Arroyo, published from 2020 to 2022. 2020 was the busiest year, with 2. The most frequent topics are Acute Kidney Injury, COVID-19 and Creatinine. Dr. Hernandez-Arroyo's most frequent co-authors are Asim H. Chughtai, MD, Agnes B. Fogo, MD and Juan Martin Gimenez, MD.
Papers3
Years published2020 to 2022
Topics Dr. Hernandez-Arroyo writes about most
- Acute Kidney Injury
- COVID-19
- Creatinine
- Kidney
Dr. Hernandez-Arroyo's most frequent co-authors
- Asim H. Chughtai, MD1 shared paper
- Agnes B. Fogo, MD1 shared paper
- Juan Martin Gimenez, MD1 shared paper
Recent publications by Dr. Hernandez-Arroyo
J Am Soc Nephrol
Acute Kidney InjuryAllelesApolipoprotein L1
Acute Kidney InjuryCOVID-19COVID-19 Testing
See who Dr. Hernandez-Arroyo researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hernandez-Arroyo works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Cesar F. Hernandez-Arroyo received $13,953 in industry payments from 2016 to 2025
CMS Open Payments shows 176 general payments to Dr. Hernandez-Arroyo from 32 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 76% of the total. C. R. Bard, Inc. & Subsidiaries paid the most, $2,518.
General payments to Dr. Hernandez-Arroyo by program year, 2016 to 2025
General payments to Dr. Hernandez-Arroyo by kind, 2016 to 2025
$14Kin total
- Food and beverage$10,66476%
- Travel and lodging$3,16123%
- Education$1281%
Companies that paid Dr. Hernandez-Arroyo the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Cesar F. Hernandez-Arroyo graduated from San Juan Bautista School of Medicine
Dr. Hernandez-Arroyo graduated from San Juan Bautista School of Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Cesar F. Hernandez-Arroyo'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Cesar F. Hernandez-Arroyo
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. Cesar F. Hernandez-Arroyo's NPI number?
Dr. Cesar F. Hernandez-Arroyo's NPI number is 1528473733. It was assigned on June 25, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Cesar F. Hernandez-Arroyo?
Dr. Cesar F. Hernandez-Arroyo is a nephrologist in Madison, Wisconsin. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Cesar F. Hernandez-Arroyo practice?
Dr. Hernandez-Arroyo practices at 5020 American Family Dr., Suite 100, Madison, WI 53718. Dr. Hernandez-Arroyo's primary practice is Azura Surgery Center Madison in Madison, Wisconsin. Dmand AI also links Dr. Hernandez-Arroyo to 1 physician office, 1 ambulatory surgery center and 1 medical group.
What is Dr. Cesar F. Hernandez-Arroyo's office phone number?
The practice phone on file for Dr. Hernandez-Arroyo is (608) 621-2001.
What is Dr. Cesar F. Hernandez-Arroyo's medical license number?
Dr. Hernandez-Arroyo holds Puerto Rico license 19128, one of the licenses on file in 2 states.
Which states has Dr. Cesar F. Hernandez-Arroyo been licensed in?
Dmand AI has state licenses on file for Dr. Hernandez-Arroyo in Puerto Rico and Wisconsin.
Which hospitals is Dr. Cesar F. Hernandez-Arroyo affiliated with?
Dr. Hernandez-Arroyo is affiliated with Hospital Auxilio Mutuo.
What medical group is Dr. Cesar F. Hernandez-Arroyo part of?
Dr. Hernandez-Arroyo is linked to Vascular Access Center. Dmand AI links Dr. Hernandez-Arroyo to 1 more medical group.
Does Dr. Cesar F. Hernandez-Arroyo accept Medicare?
Yes. CMS data shows Dr. Hernandez-Arroyo billed Medicare for 58 services in 2024, and Dr. Hernandez-Arroyo accepts Medicare assignment.
How many Medicare patients does Dr. Cesar F. Hernandez-Arroyo see?
CMS counts 35 Medicare patients who saw Dr. Hernandez-Arroyo in 2024, with an average age of 68.
Show 7 more questionsShow fewer questions
What services does Dr. Cesar F. Hernandez-Arroyo bill to Medicare?
In 2024, Dr. Hernandez-Arroyo's most billed Medicare services were special service (99152) and surgery: heart and blood vessels (36902).
Where did Dr. Cesar F. Hernandez-Arroyo go to medical school?
Dr. Hernandez-Arroyo graduated from San Juan Bautista School of Medicine in 2011.
What drugs does Dr. Cesar F. Hernandez-Arroyo prescribe most?
In 2024 Medicare Part D data, Dr. Hernandez-Arroyo's most prescribed drugs by claims were Rosuvastatin Calcium, Losartan Potassium and Metformin HCl ER.
Has Dr. Cesar F. Hernandez-Arroyo received payments from drug or device companies?
CMS Open Payments shows $13,953 in general payments to Dr. Hernandez-Arroyo from 32 companies from 2016 to 2025. The largest total came from C. R. Bard, Inc. & Subsidiaries.
How long has Dr. Cesar F. Hernandez-Arroyo been practicing?
Dr. Hernandez-Arroyo graduated from medical school in 2011, 15 years ago.
Does Dr. Cesar F. Hernandez-Arroyo do research?
Dmand AI links 3 publications to Dr. Hernandez-Arroyo, published from 2020 to 2022.
Who does Dr. Cesar F. Hernandez-Arroyo publish with?
Dr. Hernandez-Arroyo's most frequent co-authors are Asim H. Chughtai, MD (1 shared paper), Agnes B. Fogo, MD (1 shared paper) and Juan Martin Gimenez, MD (1 shared paper).
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