Dr. Carlos Manuel Nieves, MD
- Medicare services, 2024
- 75
- Medicare patients, 2024
- 27
- Part D claims, 2024
- 1,555
- Hospital affiliations
- 1
- Industry payments
- $3,935
- Practice address
- 10 Calle Casia, San Juan, PR 00921
- Practice phone
- Call (800) 449-8729
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nieves' 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 Manuel Nieves is a cardiologist in San Juan, Puerto Rico
Dr. Nieves practices at San Juan VA Medical Center in San Juan, Puerto Rico, part of Veterans Health Administration.
Dr. Nieves' NPI, 1770632572, was assigned on January 9, 2007. Dr. Nieves graduated from University of Puerto Rico School of Medicine in 1985. Dr. Nieves holds Puerto Rico license 10855.
- NPI
- 1770632572NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991869356
- NPI enumeration date
- January 9, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (800) 449-8729
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Carlos Manuel Nieves practices at San Juan VA Medical Center in San Juan, Puerto Rico
Dr. Nieves' primary practice is San Juan VA Medical Center, at 10 Calle Casia, San Juan, PR 00921 in San Juan County. The practice phone is (800) 449-8729.
- San Juan VA Medical Center10 Calle Casia, San Juan, PR 00921 · San Juan CountyPhone(800) 449-8729
Source: Dmand AI Affiliation Data
Dr. Carlos Manuel Nieves is affiliated with 2 sites of care and 2 medical groups
Dr. Nieves' primary practice is San Juan VA Medical Center in San Juan, Puerto Rico, part of Veterans Health Administration. The medical group on file is Grupo Radiológico Hacaro. Dmand AI also links Dr. Nieves to 1 more group practice or clinic and 1 medical group, each named with a free account. Dr. Nieves' employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Carlos Manuel Nieves' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nieves practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Juan VA Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Carlos Manuel Nieves is one of 232 cardiologists in Puerto Rico
Cardiovascular disease is Dr. Nieves' primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Nieves is licensed in Puerto Rico.
Specialties and state licenses
- Cardiovascular disease, Puerto RicoPrimary
Cardiologists near Dr. Nieves
Counts of cardiologists 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. Carlos Manuel Nieves billed Medicare for 75 services in 2024
CMS data shows 75 Medicare services from Dr. Nieves across 2 procedure codes in 2024, for 27 Medicare patients. Medicare paid $2,567 for them. Every service was in an office.
Dr. Nieves' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 492024: 3822%
- Tests and treatments
- 2023: 462024: 3720%
Dr. Nieves compared with the Puerto Rico median for cardiologists, 2024
- Dr. Nieves
- Puerto Rico median
- Medicare services
- 75vs 13042% below
- Medicare patients
- 27vs 4641% below
- Part D claims
- 1,360vs 4,83372% below
Medians across 244 cardiologists in Puerto Rico with Dmand AI profiles that report each measure.
Dr. Nieves' 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. Carlos Manuel Nieves treated 27 Medicare patients in 2024, average age 74
CMS counts 27 Medicare patients who saw Dr. Nieves in 2024. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.84, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nieves' median patient age at 57, with 24% women.
Dr. Nieves' Medicare patients by sex, 2024
- Women1348%
- Men1452%
Chronic conditions among Dr. Nieves' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes48%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nieves' 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
- Women24%
- Men76%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Carlos Manuel Nieves wrote 1,555 Medicare Part D claims in 2024
In 2024, Dr. Nieves wrote 1,555 Medicare Part D claims for 189 patients. 86% of them were for generic drugs. CMS names the drug for 1,360 of them, across 38 drugs with 11 or more claims each, at $195,116 in total drug cost. In 2023, CMS named 1,445 claims across 37 drugs.
Dr. Nieves' Part D claims by kind of drug, 2024
- Generic1,344 claims86%
- Brand-name211 claims14%
Dr. Nieves' 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,4452024: 1,3606%
Drugs named by CMS: 38 in 2024, 37 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. Carlos Manuel Nieves takes part in Medicare
Dr. Nieves 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. Carlos Manuel Nieves received $3,935 in industry payments from 2016 to 2025
CMS Open Payments shows 85 general payments to Dr. Nieves from 18 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 88% of the total. Medtronic Vascular, Inc. paid the most, $329.
General payments to Dr. Nieves by program year, 2016 to 2025
General payments to Dr. Nieves by kind, 2016 to 2025
- Food and beverage$3,47988%
- Travel and lodging$3078%
- Gifts$752%
- Education$742%
Companies that paid Dr. Nieves 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 Manuel Nieves graduated from University of Puerto Rico School of Medicine
Dr. Nieves graduated from University of Puerto Rico School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Carlos Manuel Nieves'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 |
| 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 Manuel Nieves
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 Manuel Nieves' NPI number?
Dr. Carlos Manuel Nieves' NPI number is 1770632572. It was assigned on January 9, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Carlos Manuel Nieves?
Dr. Carlos Manuel Nieves is a cardiologist in San Juan, Puerto Rico. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Carlos Manuel Nieves practice?
Dr. Nieves practices at 10 Calle Casia, San Juan, PR 00921. Dr. Nieves' primary practice is San Juan VA Medical Center in San Juan, Puerto Rico, part of Veterans Health Administration. Dmand AI also links Dr. Nieves to 1 group practice or clinic and 1 medical group.
What is Dr. Carlos Manuel Nieves' office phone number?
The practice phone on file for Dr. Nieves is (800) 449-8729.
What is Dr. Carlos Manuel Nieves' medical license number?
Dr. Nieves holds Puerto Rico license 10855.
Which hospitals is Dr. Carlos Manuel Nieves affiliated with?
Dr. Nieves practices at San Juan VA Medical Center in San Juan, Puerto Rico.
What medical group is Dr. Carlos Manuel Nieves part of?
Dr. Nieves is linked to Grupo Radiológico Hacaro. Dmand AI links Dr. Nieves to 1 more medical group.
Does Dr. Carlos Manuel Nieves accept Medicare?
Yes. CMS data shows Dr. Nieves billed Medicare for 75 services in 2024, and Dr. Nieves accepts Medicare assignment.
How many Medicare patients does Dr. Carlos Manuel Nieves see?
CMS counts 27 Medicare patients who saw Dr. Nieves in 2024, with an average age of 74.
What services does Dr. Carlos Manuel Nieves bill to Medicare?
In 2024, Dr. Nieves' most billed Medicare services were office visit, established patient (99213) and heart test or procedure (93000).
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Where did Dr. Carlos Manuel Nieves go to medical school?
Dr. Nieves graduated from University of Puerto Rico School of Medicine in 1985.
What drugs does Dr. Carlos Manuel Nieves prescribe most?
In 2024 Medicare Part D data, Dr. Nieves' most prescribed drugs by claims were Atorvastatin Calcium, Metoprolol Succinate and Amlodipine Besylate.
Has Dr. Carlos Manuel Nieves received payments from drug or device companies?
CMS Open Payments shows $3,935 in general payments to Dr. Nieves from 18 companies from 2016 to 2025. The largest total came from Medtronic Vascular, Inc.
How long has Dr. Carlos Manuel Nieves been practicing?
Dr. Nieves graduated from medical school in 1985, 41 years ago.
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