Dr. Gian Carlo Gierbolini, MD
- Medicare services, 2024
- 57
- Medicare patients, 2024
- 33
- Part D claims, 2024
- 2,641
- Hospital affiliations
- 1
- Industry payments
- $371
- Practice address
- 1485 Ave Ashford, San Juan, PR 00907
- Practice phone
- Call (787) 621-3700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Manati Medical Center
San Juan, Puerto Rico
Find Dr. Gierbolini'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. Gian Carlo Gierbolini is a neurologist in San Juan, Puerto Rico
Dr. Gierbolini practices at Manati Medical Center in San Juan, Puerto Rico.
Dr. Gierbolini's NPI, 1518935964, was assigned on March 10, 2006. Dr. Gierbolini graduated from University Central Del Caribe Escuela De Medicina in 1999. Dr. Gierbolini holds Puerto Rico license 16343.
- NPI
- 1518935964NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597725267
- NPI enumeration date
- March 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (787) 621-3700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gian Carlo Gierbolini practices at Manati Medical Center in San Juan, Puerto Rico
Dr. Gierbolini's primary practice is Manati Medical Center, at 1485 Ave Ashford, San Juan, PR 00907 in San Juan County. The practice phone is (787) 621-3700.
- Manati Medical Center1485 Ave Ashford, San Juan, PR 00907 · San Juan CountyPhone(787) 621-3700
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gian Carlo Gierbolini is affiliated with 3 sites of care
Dr. Gierbolini's primary practice is Manati Medical Center in San Juan, Puerto Rico. Dr. Gierbolini is also affiliated with Manatí Medical Center. Dmand AI also links Dr. Gierbolini to 1 more physician office, 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. Gian Carlo Gierbolini's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gierbolini practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Manati Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gian Carlo Gierbolini is one of 98 neurologists in Puerto Rico
Neurology is Dr. Gierbolini's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Gierbolini is licensed in Puerto Rico.
Specialties and state licenses
- Neurology, Puerto RicoPrimary
Neurologists near Dr. Gierbolini
Counts of neurologists 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. Gian Carlo Gierbolini billed Medicare for 57 services in 2024
CMS data shows 57 Medicare services from Dr. Gierbolini across 2 procedure codes in 2024, all of them office visits, for 33 Medicare patients. Medicare paid $3,719 for them. Every service was in an office.
Dr. Gierbolini's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 682024: 5716%
Dr. Gierbolini compared with the Puerto Rico median for neurologists, 2024
- Dr. Gierbolini
- Puerto Rico median
- Medicare services
- 57vs 4624% above
- Medicare patients
- 33vs 32Close to median
- Part D claims
- 2,503vs 2,2999% above
Medians across 103 neurologists in Puerto Rico with Dmand AI profiles that report each measure.
Dr. Gierbolini'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gierbolini and other neurologists in Puerto Rico.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gian Carlo Gierbolini treated 33 Medicare patients in 2024, average age 79
CMS counts 33 Medicare patients who saw Dr. Gierbolini in 2024. The largest group is 75 to 84, with 19 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.30, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Gierbolini's median patient age at 76, with 56% women.
Dr. Gierbolini's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Gierbolini's Medicare patients by sex, 2024
- Women1545%
- Men1855%
Chronic conditions among Dr. Gierbolini's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes70%
- Chronic kidney disease55%
- Alzheimer's and dementia42%
- Arthritis39%
- Ischemic heart disease36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gierbolini's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gian Carlo Gierbolini wrote 2,641 Medicare Part D claims in 2024
In 2024, Dr. Gierbolini wrote 2,641 Medicare Part D claims for 348 patients. 93% of them were for generic drugs. CMS names the drug for 2,503 of them, across 32 drugs with 11 or more claims each, at $518,118 in total drug cost. In 2023, CMS named 2,517 claims across 38 drugs.
Dr. Gierbolini's Part D claims by kind of drug, 2024
- Generic2,451 claims93%
- Brand-name190 claims7%
Dr. Gierbolini'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. Gierbolini's Part D claims, 2024
- Antipsychotics, patients 65 and over1%34 of 2,641 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: 2,5172024: 2,5031%
Drugs named by CMS: 32 in 2024, 38 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. Gian Carlo Gierbolini takes part in Medicare
Dr. Gierbolini 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. Gian Carlo Gierbolini received $371 in industry payments from 2016 to 2019
CMS Open Payments shows 13 general payments to Dr. Gierbolini from 4 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. UCB, Inc. paid the most, $295.
General payments to Dr. Gierbolini by program year, 2016 to 2019
Companies that paid Dr. Gierbolini the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gian Carlo Gierbolini graduated from University Central Del Caribe Escuela De Medicina
Dr. Gierbolini graduated from University Central Del Caribe Escuela De Medicina in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gian Carlo Gierbolini'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. Gian Carlo Gierbolini
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. Gian Carlo Gierbolini's NPI number?
Dr. Gian Carlo Gierbolini's NPI number is 1518935964. It was assigned on March 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gian Carlo Gierbolini?
Dr. Gian Carlo Gierbolini is a neurologist in San Juan, Puerto Rico. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Gian Carlo Gierbolini practice?
Dr. Gierbolini practices at 1485 Ave Ashford, San Juan, PR 00907. Dr. Gierbolini's primary practice is Manati Medical Center in San Juan, Puerto Rico. Dmand AI also links Dr. Gierbolini to 1 physician office.
What is Dr. Gian Carlo Gierbolini's office phone number?
The practice phone on file for Dr. Gierbolini is (787) 621-3700.
What is Dr. Gian Carlo Gierbolini's medical license number?
Dr. Gierbolini holds Puerto Rico license 16343.
Which hospitals is Dr. Gian Carlo Gierbolini affiliated with?
Dr. Gierbolini is affiliated with Manatí Medical Center.
Does Dr. Gian Carlo Gierbolini accept Medicare?
Yes. CMS data shows Dr. Gierbolini billed Medicare for 57 services in 2024, and Dr. Gierbolini accepts Medicare assignment.
How many Medicare patients does Dr. Gian Carlo Gierbolini see?
CMS counts 33 Medicare patients who saw Dr. Gierbolini in 2024, with an average age of 79.
What services does Dr. Gian Carlo Gierbolini bill to Medicare?
In 2024, Dr. Gierbolini's most billed Medicare services were office visit, established patient (99213) and office visit, new patient (99204).
Where did Dr. Gian Carlo Gierbolini go to medical school?
Dr. Gierbolini graduated from University Central Del Caribe Escuela De Medicina in 1999.
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What drugs does Dr. Gian Carlo Gierbolini prescribe most?
In 2024 Medicare Part D data, Dr. Gierbolini's most prescribed drugs by claims were Donepezil HCl, Memantine HCl and Carbidopa-Levodopa.
Has Dr. Gian Carlo Gierbolini received payments from drug or device companies?
CMS Open Payments shows $371 in general payments to Dr. Gierbolini from 4 companies from 2016 to 2019. The largest total came from UCB, Inc.
How long has Dr. Gian Carlo Gierbolini been practicing?
Dr. Gierbolini graduated from medical school in 1999, 27 years ago.
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