Dr. Guillermo A. Pagan Calo, MD
- Medicare services, 2020
- 12
- Part D claims, 2024
- 3,798
- Hospital affiliations
- 1
- Industry payments
- $274
- Medical groups
- 3
- Practice address
- 1760 Cll Loiza, San Juan, PR 00911
- Practice phone
- Call (787) 834-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Bella Vista Hospital Inc
San Juan, Puerto Rico
Find Dr. Pagan Calo'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. Guillermo A. Pagan Calo is a general practice physician in San Juan, Puerto Rico
Dr. Pagan Calo practices at Bella Vista Hospital Inc in San Juan, Puerto Rico.
Dr. Pagan Calo's NPI, 1891821815, was assigned on February 26, 2007. Dr. Pagan Calo holds Puerto Rico license 14386.
- NPI
- 1891821815NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305897901
- NPI enumeration date
- February 26, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (787) 834-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Guillermo A. Pagan Calo practices at Bella Vista Hospital Inc in San Juan, Puerto Rico
Dr. Pagan Calo's primary practice is Bella Vista Hospital Inc, at 1760 Cll Loiza, San Juan, PR 00911 in San Juan County. The practice phone is (787) 834-6000.
- Bella Vista Hospital Inc1760 Cll Loiza, San Juan, PR 00911 · San Juan CountyPhone(787) 834-6000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Guillermo A. Pagan Calo is affiliated with 4 sites of care and 3 medical groups
Dr. Pagan Calo's primary practice is Bella Vista Hospital Inc in San Juan, Puerto Rico. Dr. Pagan Calo is also affiliated with Bella Vista Hospital. The medical group on file is HIMA San Pablo Caguas Hospital. Dmand AI also links Dr. Pagan Calo to 2 more medical groups, 1 group practice or clinic and 1 hospice, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Guillermo A. Pagan Calo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pagan Calo practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bella Vista Hospital Inc | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Guillermo A. Pagan Calo is one of 2,604 general practice physicians in Puerto Rico
General practice is Dr. Pagan Calo's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Pagan Calo is licensed in Puerto Rico.
Specialties and state licenses
- General practice, Puerto RicoPrimary
General practice physicians near Dr. Pagan Calo
Counts of general practice physicians 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. Guillermo A. Pagan Calo billed Medicare for 12 services in 2020
CMS data shows 12 Medicare services from Dr. Pagan Calo across 1 procedure code in 2020. Medicare paid $633 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Pagan Calo's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 1302020: 1291%
- Surgery
- 2019: 842020: 0100%
Dr. Pagan Calo compared with the Puerto Rico median for general practice physicians, 2020
- Dr. Pagan Calo
- Puerto Rico median
- Medicare services
- 12vs 3465% below
- Part D claims
- 3,222vs 7354.4 times
Medians across 3,001 general practice physicians in Puerto Rico with Dmand AI profiles that report each measure.
Dr. Pagan Calo's most billed Medicare procedure codes, 2020
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. Guillermo A. Pagan Calo's patients have a median age of 81
Across all payers, Dmand AI patient panel data puts Dr. Pagan Calo's median patient age at 81, with 64% women.
Dr. Pagan Calo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 81
Patient panel by sex, all payers
- Women64%
- Men36%
Source: Dmand AI Patient Panel Data
Dr. Guillermo A. Pagan Calo wrote 3,798 Medicare Part D claims in 2024
In 2024, Dr. Pagan Calo wrote 3,798 Medicare Part D claims for 220 patients. 90% of them were for generic drugs. CMS names the drug for 3,222 of them, across 80 drugs with 11 or more claims each, at $98,960 in total drug cost. In 2023, CMS named 2,707 claims across 74 drugs.
Dr. Pagan Calo's Part D claims by kind of drug, 2024
- Generic3,414 claims90%
- Brand-name353 claims9%
- Other31 claims1%
Dr. Pagan Calo'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. Pagan Calo's Part D claims, 2024
- Opioids1%31 of 3,798 claims
- Antibiotics4%134 of 3,798 claims
- Antipsychotics, patients 65 and over1%33 of 3,798 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: 2,7072024: 3,22219%
Drugs named by CMS: 80 in 2024, 74 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. Guillermo A. Pagan Calo ranks in the 93rd percentile for removal of tissue in Medicare
Dr. Pagan Calo accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 266 procedures of removal of tissue by Dr. Pagan Calo, more than 93% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Pagan Calo ranks in Medicare procedure volume
- Removal of tissue
- 93rd percentile266 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 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. Guillermo A. Pagan Calo received $274 in industry payments from 2016 to 2023
CMS Open Payments shows 6 general payments to Dr. Pagan Calo from 3 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $225.
General payments to Dr. Pagan Calo by program year, 2016 to 2023
Companies that paid Dr. Pagan Calo the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Guillermo A. Pagan Calo'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 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 Data |
| 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. Guillermo A. Pagan Calo
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. Guillermo A. Pagan Calo's NPI number?
Dr. Guillermo A. Pagan Calo's NPI number is 1891821815. It was assigned on February 26, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Guillermo A. Pagan Calo?
Dr. Guillermo A. Pagan Calo is a general practice physician in San Juan, Puerto Rico. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Guillermo A. Pagan Calo practice?
Dr. Pagan Calo practices at 1760 Cll Loiza, San Juan, PR 00911. Dr. Pagan Calo's primary practice is Bella Vista Hospital Inc in San Juan, Puerto Rico. Dmand AI also links Dr. Pagan Calo to 2 medical groups, 1 group practice or clinic and 1 hospice.
What is Dr. Guillermo A. Pagan Calo's office phone number?
The practice phone on file for Dr. Pagan Calo is (787) 834-6000.
What is Dr. Guillermo A. Pagan Calo's medical license number?
Dr. Pagan Calo holds Puerto Rico license 14386.
Which hospitals is Dr. Guillermo A. Pagan Calo affiliated with?
Dr. Pagan Calo is affiliated with Bella Vista Hospital.
What medical group is Dr. Guillermo A. Pagan Calo part of?
Dr. Pagan Calo is linked to HIMA San Pablo Caguas Hospital. Dmand AI links Dr. Pagan Calo to 2 more medical groups.
Does Dr. Guillermo A. Pagan Calo accept Medicare?
Yes. CMS data shows Dr. Pagan Calo billed Medicare for 12 services in 2020, and Dr. Pagan Calo accepts Medicare assignment.
What services does Dr. Guillermo A. Pagan Calo bill to Medicare?
In 2020, Dr. Pagan Calo's most billed Medicare services were emergency department visit (99283).
What drugs does Dr. Guillermo A. Pagan Calo prescribe most?
In 2024 Medicare Part D data, Dr. Pagan Calo's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Gabapentin.
Has Dr. Guillermo A. Pagan Calo received payments from drug or device companies?
CMS Open Payments shows $274 in general payments to Dr. Pagan Calo from 3 companies from 2016 to 2023. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Guillermo A. Pagan Calo been practicing?
Dr. Pagan Calo graduated from medical school in 2000, 26 years ago.
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