Dr. Alberto G. Grana, MD
- Industry payments
- $451
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- General Delivery, Adjuntas, PR 00601
- Practice phone
- Call (787) 829-5010
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hospital General De Castaner Inc
Adjuntas, Puerto Rico
Find Dr. Grana'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. Alberto G. Grana is a general practice physician in Adjuntas, Puerto Rico
Dr. Grana practices at Hospital General De Castaner Inc in Adjuntas, Puerto Rico.
Dr. Grana's NPI, 1083836340, was assigned on May 3, 2007. Dr. Grana holds Puerto Rico license 8070.
- NPI
- 1083836340NPI Registry (opens in a new tab)
- NPI enumeration date
- May 3, 2007
- NPI status
- Active
- Practice phone
- (787) 829-5010
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Alberto G. Grana practices at Hospital General De Castaner Inc in Adjuntas, Puerto Rico
Dr. Grana's primary practice is Hospital General De Castaner Inc, at General Delivery, Adjuntas, PR 00601 in Adjuntas County. The practice phone is (787) 829-5010.
- Hospital General De Castaner IncGeneral Delivery, Adjuntas, PR 00601 · Adjuntas CountyPhone(787) 829-5010
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Alberto G. Grana is affiliated with 1 site of care and 1 medical group
Dr. Grana's primary practice is Hospital General De Castaner Inc in Adjuntas, Puerto Rico. The medical group on file is Hospital General Castañer.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Alberto G. Grana's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grana practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hospital General De Castaner Inc | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Alberto G. Grana is one of 2,604 general practice physicians in Puerto Rico
General practice is Dr. Grana's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Grana is licensed in Puerto Rico.
Specialties and state licenses
- General practice, Puerto RicoPrimary
General practice physicians near Dr. Grana
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. Alberto G. Grana's patients have a median age of 12
Across all payers, Dmand AI patient panel data puts Dr. Grana's median patient age at 12, with 48% women.
Dr. Grana's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 12
Patient panel by sex, all payers
- Women48%
- Men52%
Source: Dmand AI Patient Panel Data
Dr. Alberto G. Grana received $451 in industry payments from 2024 to 2025
CMS Open Payments shows 11 general payments to Dr. Grana from 3 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $232.
General payments to Dr. Grana by program year, 2024 to 2025
Companies that paid Dr. Grana the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Alberto G. Grana'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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. Alberto G. Grana
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. Alberto G. Grana's NPI number?
Dr. Alberto G. Grana's NPI number is 1083836340. It was assigned on May 3, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Alberto G. Grana?
Dr. Alberto G. Grana is a general practice physician in Adjuntas, Puerto Rico. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Alberto G. Grana practice?
Dr. Grana practices at General Delivery, Adjuntas, PR 00601. Dr. Grana's primary practice is Hospital General De Castaner Inc in Adjuntas, Puerto Rico.
What is Dr. Alberto G. Grana's office phone number?
The practice phone on file for Dr. Grana is (787) 829-5010.
What is Dr. Alberto G. Grana's medical license number?
Dr. Grana holds Puerto Rico license 8070.
What medical group is Dr. Alberto G. Grana part of?
Dr. Grana is linked to Hospital General Castañer.
Has Dr. Alberto G. Grana received payments from drug or device companies?
CMS Open Payments shows $451 in general payments to Dr. Grana from 3 companies from 2024 to 2025. The largest total came from Medtronic, Inc.
How long has Dr. Alberto G. Grana been practicing?
Dr. Grana's NPI was assigned in 2007.
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