Clin J Am Soc Nephrol
AccreditationEducation, Medical, GraduateFellowships and Scholarships
Dr. Carlos F. Zayas, MD
NPI1205979564PAC ID3870528391
- Medicare services, 2024
- 913
- Medicare patients, 2024
- 161
- Part D claims, 2024
- 3,587
- Publications
- 11
- MIPS score, 2024
- 84
- Practice address
- 701 Grove Road, Greenville, SC 29605
- Practice phone
- Call (864) 455-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Zayas' 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. Carlos F. Zayas is a nephrologist in Greenville, South Carolina
Dr. Zayas practices at Prisma Health Greenville Memorial Hospital in Greenville, South Carolina, part of Prisma Health.
Dr. Zayas' NPI, 1205979564, was assigned on February 15, 2007. Dr. Zayas graduated from University of Puerto Rico School of Medicine in 1990. Dr. Zayas holds South Carolina license 36699.
NPI and contact details
- NPI
- 1205979564NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3870528391
- NPI enumeration date
- February 15, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (864) 455-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Carlos F. Zayas practices at Prisma Health Greenville Memorial Hospital in Greenville, South Carolina
Dr. Zayas' primary practice is Prisma Health Greenville Memorial Hospital, at 701 Grove Road, Greenville, SC 29605 in Greenville County. The practice phone is (864) 455-7000.
- Prisma Health Greenville Memorial Hospital701 Grove Road, Greenville, SC 29605 · Greenville CountyPhone(864) 455-7000
Source: Dmand AI Affiliation Data
Dr. Carlos F. Zayas is affiliated with 8 sites of care and 4 medical groups
Dr. Zayas' primary practice is Prisma Health Greenville Memorial Hospital in Greenville, South Carolina, part of Prisma Health. Dr. Zayas is also affiliated with Prisma Health Hillcrest Hospital. The medical group on file is Prisma Health Medical Group. Dmand AI also links Dr. Zayas to 3 more hospitals, 3 group practices and clinics and 3 medical groups, each named with a free account.
Prisma Health Hillcrest HospitalPrisma Health Medical Group3 hospitalsNames with a free account3 group practices and clinicsNames with a free account3 medical groupsNames with a free account
See all 12 affiliations for Dr. ZayasSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Carlos F. Zayas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zayas practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Prisma Health Greenville Memorial Hospital | Available with a free account |
| +7 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Carlos F. Zayas is one of 156 nephrologists in South Carolina
Nephrology is Dr. Zayas' primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dmand AI has Dr. Zayas' licenses on file in 2 states: South Carolina and Georgia.
Specialties and state licenses
- Nephrology, South CarolinaPrimary
- Transplant surgery, Georgia
Nephrologists near Dr. Zayas
Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.
156nephrologists in South Carolina21nephrologists in Greenville7nephrologists at Prisma Health Greenville Memorial Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Carlos F. Zayas billed Medicare for 913 services in 2024
CMS data shows 913 Medicare services from Dr. Zayas across 4 procedure codes in 2024, for 161 Medicare patients. Medicare paid $67,617 for them.
Medicare services, 2024913
Medicare patients161
Paid by Medicare$67,617
Procedure codes4
Dr. Zayas' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6552024: 91339%
Where Dr. Zayas' Medicare services took place, 2024
- In an office586%
- In a facility85594%
Dr. Zayas compared with the South Carolina median for nephrologists, 2024
- Dr. Zayas
- South Carolina median
- Medicare services
- 913vs 1,63944% below
- Medicare patients
- 161vs 41361% below
- Part D claims
- 3,078vs 7204.3 times
Medians across 155 nephrologists in South Carolina with Dmand AI profiles that report each measure.
Dr. Zayas' 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. Zayas?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Zayas and other nephrologists in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Carlos F. Zayas treated 161 Medicare patients in 2024, average age 58
CMS counts 161 Medicare patients who saw Dr. Zayas in 2024. The largest group is under 65, with 86 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 25% are also on Medicaid. Their average risk score is 5.93, 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. Zayas' median patient age at 57, with 44% women.
Medicare patients, 2024161
Average age58
Average risk score5.93
Also on Medicaid25%
Dr. Zayas' Medicare patients by age, 2024
Dr. Zayas' Medicare patients by sex, 2024
- Women6943%
- Men9257%
Chronic conditions among Dr. Zayas' Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol66%
- Diabetes52%
- Heart failure31%
- Arthritis30%
- Ischemic heart disease30%
- Anxiety27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zayas' 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
- Women44%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Carlos F. Zayas wrote 3,587 Medicare Part D claims in 2024
In 2024, Dr. Zayas wrote 3,587 Medicare Part D claims for 208 patients. 91% of them were for generic drugs. CMS names the drug for 3,078 of them, across 63 drugs with 11 or more claims each, at $172,146 in total drug cost. In 2023, CMS named 1,060 claims across 34 drugs.
Part D claims, 20243,587
Drugs named by CMS63
Total drug cost$172,146
Part D patients208
Dr. Zayas' Part D claims by kind of drug, 2024
- Generic3,251 claims91%
- Brand-name306 claims9%
- Other30 claims1%
Dr. Zayas' 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. Zayas' Part D claims, 2024
- Opioids2%64 of 3,587 claims
- Antibiotics13%455 of 3,587 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: 1,0602024: 3,078190%
Drugs named by CMS: 63 in 2024, 34 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. Carlos F. Zayas scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Zayas for performance year 2024, reported as part of a group. Dr. Zayas accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Zayas' MIPS scores, performance year 2024
- 84of 100Final score
- 75.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 72of 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. Carlos F. Zayas has 11 publications on record
Dmand AI links 11 papers to Dr. Zayas, published from 2016 to 2024. 2018 was the busiest year, with 3. The most frequent topics are Kidney Transplantation, Kidney Failure, Chronic and Referral and Consultation. Dr. Zayas has published most often in Am J Transplant. Dr. Zayas' most frequent co-authors are Stephen O. Pastan, MD, Amber M. Reeves-Daniel, DO and Reem Hamoda, MD, MPH.
Papers11
Years published2016 to 2024
Dr. Zayas' papers by year, 2016 to 2024
Topics Dr. Zayas writes about most
- Kidney Transplantation
- Kidney Failure, Chronic
- Referral and Consultation
- Healthcare Disparities
- Renal Dialysis
- Waiting Lists
Dr. Zayas' most frequent co-authors
- Stephen O. Pastan, MD8 shared papers
- Amber M. Reeves-Daniel, DO3 shared papers
- Reem Hamoda, MD, MPH2 shared papers
Recent publications by Dr. Zayas
KidneyKidney Failure, ChronicKidney Transplantation
Kidney Failure, ChronicKidney TransplantationNorth Carolina
Am J Transplant
EthnicityEvaluation Studies as TopicHealthcare Disparities
See who Dr. Zayas researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Zayas 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. Carlos F. Zayas received $5,860 in industry payments from 2016 to 2025
CMS Open Payments shows 102 general payments to Dr. Zayas from 30 drug and device companies from 2016 to 2025. Honoraria make up the largest share, 55% of the total. Horizon Pharma plc paid the most, $3,740.
General payments to Dr. Zayas by program year, 2016 to 2025
General payments to Dr. Zayas by kind, 2016 to 2025
$5.9Kin total
- Honoraria$3,24055%
- Food and beverage$1,96133%
- Education$5129%
- Consulting fees$1483%
Companies that paid Dr. Zayas 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. Carlos F. Zayas graduated from University of Puerto Rico School of Medicine
Dr. Zayas graduated from University of Puerto Rico School of Medicine in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Carlos F. Zayas'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)Clinician Public Reporting: Overall MIPS Performance (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. Carlos F. Zayas
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. Carlos F. Zayas' NPI number?
Dr. Carlos F. Zayas' NPI number is 1205979564. It was assigned on February 15, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Carlos F. Zayas?
Dr. Carlos F. Zayas is a nephrologist in Greenville, South Carolina. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Carlos F. Zayas practice?
Dr. Zayas practices at 701 Grove Road, Greenville, SC 29605. Dr. Zayas' primary practice is Prisma Health Greenville Memorial Hospital in Greenville, South Carolina, part of Prisma Health. Dmand AI also links Dr. Zayas to 3 hospitals, 3 group practices and clinics and 3 medical groups.
What is Dr. Carlos F. Zayas' office phone number?
The practice phone on file for Dr. Zayas is (864) 455-7000.
What is Dr. Carlos F. Zayas' medical license number?
Dr. Zayas holds South Carolina license 36699, one of the licenses on file in 2 states.
Which states has Dr. Carlos F. Zayas been licensed in?
Dmand AI has state licenses on file for Dr. Zayas in South Carolina and Georgia.
Which hospitals is Dr. Carlos F. Zayas affiliated with?
Dr. Zayas practices at Prisma Health Greenville Memorial Hospital in Greenville, South Carolina. Dr. Zayas is also affiliated with Prisma Health Hillcrest Hospital. Dmand AI links Dr. Zayas to 3 more hospitals.
What medical group is Dr. Carlos F. Zayas part of?
Dr. Zayas is linked to Prisma Health Medical Group. Dmand AI links Dr. Zayas to 3 more medical groups.
Does Dr. Carlos F. Zayas accept Medicare?
Yes. CMS data shows Dr. Zayas billed Medicare for 913 services in 2024, and Dr. Zayas accepts Medicare assignment.
What is Dr. Carlos F. Zayas' MIPS score?
Dr. Zayas' MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Carlos F. Zayas see?
CMS counts 161 Medicare patients who saw Dr. Zayas in 2024, with an average age of 58.
What services does Dr. Carlos F. Zayas bill to Medicare?
In 2024, Dr. Zayas' most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99233) and hospital inpatient care (99232).
Where did Dr. Carlos F. Zayas go to medical school?
Dr. Zayas graduated from University of Puerto Rico School of Medicine in 1990.
What drugs does Dr. Carlos F. Zayas prescribe most?
In 2024 Medicare Part D data, Dr. Zayas' most prescribed drugs by claims were Pantoprazole Sodium, Sulfamethoxazole-Trimethoprim and Valganciclovir HCl.
Has Dr. Carlos F. Zayas received payments from drug or device companies?
CMS Open Payments shows $5,860 in general payments to Dr. Zayas from 30 companies from 2016 to 2025. The largest total came from Horizon Pharma plc.
How long has Dr. Carlos F. Zayas been practicing?
Dr. Zayas graduated from medical school in 1990, 36 years ago.
Does Dr. Carlos F. Zayas do research?
Dmand AI links 11 publications to Dr. Zayas, published from 2016 to 2024.
Who does Dr. Carlos F. Zayas publish with?
Dr. Zayas' most frequent co-authors are Stephen O. Pastan, MD (8 shared papers), Amber M. Reeves-Daniel, DO (3 shared papers) and Reem Hamoda, MD, MPH (2 shared papers).
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