Dr. Nicolas C. Casellas Castillo, MD
- Medicare services, 2024
- 57
- Medicare patients, 2024
- 34
- Part D claims, 2024
- 320
- Hospital affiliations
- 1
- Industry payments
- $3,491
- Practice address
- 1462 Calle P A Rodz, San Juan, PR 00909
- Practice phone
- Call (787) 727-6060
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hospital Pavia Santurce
San Juan, Puerto Rico
Find Dr. Casellas 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. Nicolas C. Casellas Castillo is an OB-GYN in San Juan, Puerto Rico
Dr. Casellas Castillo practices at Hospital Pavia Santurce in San Juan, Puerto Rico.
Dr. Casellas Castillo's NPI, 1770540304, was assigned on April 27, 2006. Dr. Casellas Castillo holds Puerto Rico license 8376.
- NPI
- 1770540304NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6507002375
- NPI enumeration date
- April 27, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (787) 727-6060
- 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 Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nicolas C. Casellas Castillo practices at Hospital Pavia Santurce in San Juan, Puerto Rico
Dr. Casellas Castillo's primary practice is Hospital Pavia Santurce, at 1462 Calle P A Rodz, San Juan, PR 00909 in San Juan County. The practice phone is (787) 727-6060.
- Hospital Pavia Santurce1462 Calle P A Rodz, San Juan, PR 00909 · San Juan CountyPhone(787) 727-6060
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nicolas C. Casellas Castillo is affiliated with 2 sites of care and 1 medical group
Dr. Casellas Castillo's primary practice is Hospital Pavia Santurce in San Juan, Puerto Rico. Dr. Casellas Castillo is also affiliated with Hospital Pavia Santurce. The medical group on file is Hospital Pavia Santurce.
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. Nicolas C. Casellas Castillo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Casellas Castillo practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hospital Pavia Santurce | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nicolas C. Casellas Castillo is one of 263 OB-GYNs in Puerto Rico
Obstetrics and gynecology is Dr. Casellas Castillo's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Casellas Castillo is licensed in Puerto Rico.
Specialties and state licenses
- Obstetrics and gynecology, Puerto RicoPrimary
OB-GYNs near Dr. Casellas Castillo
Counts of OB-GYNs 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. Nicolas C. Casellas Castillo billed Medicare for 57 services in 2024
CMS data shows 57 Medicare services from Dr. Casellas Castillo across 2 procedure codes in 2024, for 34 Medicare patients. Medicare paid $3,114 for them. Every service was in an office.
Dr. Casellas Castillo's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 492024: 4018%
- Other services
- 2023: 212024: 1719%
Dr. Casellas Castillo compared with the Puerto Rico median for OB-GYNs, 2024
- Dr. Casellas Castillo
- Puerto Rico median
- Medicare services
- 57vs 282.0 times
- Medicare patients
- 34vs 2348% above
- Part D claims
- 230vs 773.0 times
Medians across 265 OB-GYNs in Puerto Rico with Dmand AI profiles that report each measure.
Dr. Casellas 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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Casellas Castillo and other OB-GYNs in Puerto Rico.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nicolas C. Casellas Castillo treated 34 Medicare patients in 2024, average age 73
CMS counts 34 Medicare patients who saw Dr. Casellas Castillo in 2024. The largest group is 65 to 74, with 18 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Casellas Castillo's median patient age at 64, with 100% women.
Dr. Casellas Castillo's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Casellas Castillo's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis65%
- Diabetes59%
Share of Medicare patients with each condition. A patient can have several.
Dr. Casellas 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 64
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nicolas C. Casellas Castillo wrote 320 Medicare Part D claims in 2024
In 2024, Dr. Casellas Castillo wrote 320 Medicare Part D claims for 106 patients. 91% of them were for generic drugs. CMS names the drug for 230 of them, across 7 drugs with 11 or more claims each, at $9,643 in total drug cost. In 2023, CMS named 187 claims across 6 drugs.
Dr. Casellas Castillo's Part D claims by kind of drug, 2024
- Generic291 claims91%
- Brand-name29 claims9%
Dr. Casellas 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. Casellas Castillo's Part D claims, 2024
- Antibiotics5%15 of 320 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: 1872024: 23023%
Drugs named by CMS: 7 in 2024, 6 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. Nicolas C. Casellas Castillo takes part in Medicare
Dr. Casellas Castillo accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal of the uterus: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Nicolas C. Casellas Castillo received $3,491 in industry payments from 2016 to 2025
CMS Open Payments shows 38 general payments to Dr. Casellas Castillo from 9 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 57% of the total. Merck Sharp & Dohme Corporation paid the most, $1,988.
General payments to Dr. Casellas Castillo by program year, 2016 to 2025
General payments to Dr. Casellas Castillo by kind, 2016 to 2025
- Food and beverage$1,99157%
- Consulting fees$1,50043%
Companies that paid Dr. Casellas Castillo the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nicolas C. Casellas 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Nicolas C. Casellas 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. Nicolas C. Casellas Castillo's NPI number?
Dr. Nicolas C. Casellas Castillo's NPI number is 1770540304. It was assigned on April 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Nicolas C. Casellas Castillo?
Dr. Nicolas C. Casellas Castillo is an OB-GYN in San Juan, Puerto Rico. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Nicolas C. Casellas Castillo practice?
Dr. Casellas Castillo practices at 1462 Calle P A Rodz, San Juan, PR 00909. Dr. Casellas Castillo's primary practice is Hospital Pavia Santurce in San Juan, Puerto Rico.
What is Dr. Nicolas C. Casellas Castillo's office phone number?
The practice phone on file for Dr. Casellas Castillo is (787) 727-6060.
What is Dr. Nicolas C. Casellas Castillo's medical license number?
Dr. Casellas Castillo holds Puerto Rico license 8376.
Which hospitals is Dr. Nicolas C. Casellas Castillo affiliated with?
Dr. Casellas Castillo is affiliated with Hospital Pavia Santurce.
What medical group is Dr. Nicolas C. Casellas Castillo part of?
Dr. Casellas Castillo is linked to Hospital Pavia Santurce.
Does Dr. Nicolas C. Casellas Castillo accept Medicare?
Yes. CMS data shows Dr. Casellas Castillo billed Medicare for 57 services in 2024, and Dr. Casellas Castillo accepts Medicare assignment.
How many Medicare patients does Dr. Nicolas C. Casellas Castillo see?
CMS counts 34 Medicare patients who saw Dr. Casellas Castillo in 2024, with an average age of 73.
What services does Dr. Nicolas C. Casellas Castillo bill to Medicare?
In 2024, Dr. Casellas Castillo's most billed Medicare services were office visit, established patient (99213) and medicare service (G0101).
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What drugs does Dr. Nicolas C. Casellas Castillo prescribe most?
In 2024 Medicare Part D data, Dr. Casellas Castillo's most prescribed drugs by claims were Estradiol, Progesterone and Clotrimazole-Betamethasone.
Has Dr. Nicolas C. Casellas Castillo received payments from drug or device companies?
CMS Open Payments shows $3,491 in general payments to Dr. Casellas Castillo from 9 companies from 2016 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Nicolas C. Casellas Castillo been practicing?
Dr. Casellas Castillo graduated from medical school in 1985, 41 years ago.
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