Dr. Rolando Diaz, MD
- Medicare services, 2020
- 13
- Medicare patients, 2024
- 16
- Part D claims, 2024
- 575
- Hospital affiliations
- 2
- Industry payments
- $257
- Practice address
- 14 Cll 2, Guaynabo, PR 00969
- Practice phone
- Call (787) 434-1700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hospital Menonita De Guayama
Guaynabo, Puerto Rico
Find Dr. Diaz's professional email, personal email and mobile number
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Dr. Rolando Diaz is a general practice physician in Guaynabo, Puerto Rico
Dr. Diaz practices at Hospital Menonita De Guayama in Guaynabo, Puerto Rico.
Dr. Diaz's NPI, 1184686289, was assigned on April 4, 2006. Dr. Diaz holds Puerto Rico license 14422.
- NPI
- 1184686289NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820187644
- NPI enumeration date
- April 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (787) 434-1700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rolando Diaz practices at Hospital Menonita De Guayama in Guaynabo, Puerto Rico
Dr. Diaz's primary practice is Hospital Menonita De Guayama, at 14 Cll 2, Guaynabo, PR 00969 in Guaynabo County. The practice phone is (787) 434-1700.
- Hospital Menonita De Guayama14 Cll 2, Guaynabo, PR 00969 · Guaynabo CountyPhone(787) 434-1700
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Rolando Diaz is affiliated with 4 sites of care and 3 medical groups
Dr. Diaz's primary practice is Hospital Menonita De Guayama in Guaynabo, Puerto Rico. Dr. Diaz is also affiliated with Hospital Menonita Guayama. The medical group on file is Mennonite General Hospital. Dmand AI also links Dr. Diaz to 1 more hospital, 2 medical groups and 1 group practice or clinic, each 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. Rolando Diaz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diaz practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hospital Menonita De Guayama | 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. Rolando Diaz is one of 2,604 general practice physicians in Puerto Rico
General practice is Dr. Diaz's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Diaz is licensed in Puerto Rico.
Specialties and state licenses
- General practice, Puerto RicoPrimary
General practice physicians near Dr. Diaz
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. Rolando Diaz billed Medicare for 13 services in 2020
CMS data shows 13 Medicare services from Dr. Diaz across 1 procedure code in 2020, for 16 Medicare patients. Medicare paid $859 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Diaz's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 152020: 1313%
Dr. Diaz compared with the Puerto Rico median for general practice physicians, 2020
- Dr. Diaz
- Puerto Rico median
- Medicare services
- 13vs 3462% below
- Medicare patients
- 16vs 1916% below
- Part D claims
- 465vs 73537% below
Medians across 3,001 general practice physicians in Puerto Rico with Dmand AI profiles that report each measure.
Dr. Diaz'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. Rolando Diaz treated 16 Medicare patients in 2024, average age 76
CMS counts 16 Medicare patients who saw Dr. Diaz in 2024. 75% of them have high blood pressure. Their average risk score is 1.05, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Diaz's median patient age at 72, with 53% women.
Chronic conditions among Dr. Diaz's Medicare patients, 2024
- High blood pressure75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Diaz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rolando Diaz wrote 575 Medicare Part D claims in 2024
In 2024, Dr. Diaz wrote 575 Medicare Part D claims for 445 patients. 94% of them were for generic drugs. CMS names the drug for 465 of them, across 14 drugs with 11 or more claims each, at $6,615 in total drug cost. In 2023, CMS named 421 claims across 13 drugs.
Dr. Diaz's Part D claims by kind of drug, 2024
- Generic540 claims94%
- Brand-name and other35 claims6%
Dr. Diaz'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. Diaz's Part D claims, 2024
- Antibiotics37%211 of 575 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: 4212024: 46510%
Drugs named by CMS: 14 in 2024, 13 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. Rolando Diaz takes part in Medicare
Dr. Diaz 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. Rolando Diaz received $257 in industry payments from 2016 to 2021
CMS Open Payments shows 4 general payments to Dr. Diaz from 3 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $125.
General payments to Dr. Diaz by program year, 2016 to 2021
Companies that paid Dr. Diaz the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Rolando Diaz'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) |
| 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. Rolando Diaz
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. Rolando Diaz's NPI number?
Dr. Rolando Diaz's NPI number is 1184686289. It was assigned on April 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Rolando Diaz?
Dr. Rolando Diaz is a general practice physician in Guaynabo, Puerto Rico. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Rolando Diaz practice?
Dr. Diaz practices at 14 Cll 2, Guaynabo, PR 00969. Dr. Diaz's primary practice is Hospital Menonita De Guayama in Guaynabo, Puerto Rico. Dmand AI also links Dr. Diaz to 1 hospital, 2 medical groups and 1 group practice or clinic.
What is Dr. Rolando Diaz's office phone number?
The practice phone on file for Dr. Diaz is (787) 434-1700.
What is Dr. Rolando Diaz's medical license number?
Dr. Diaz holds Puerto Rico license 14422.
Which hospitals is Dr. Rolando Diaz affiliated with?
Dr. Diaz is affiliated with Hospital Menonita Guayama. Dmand AI links Dr. Diaz to 1 more hospital.
What medical group is Dr. Rolando Diaz part of?
Dr. Diaz is linked to Mennonite General Hospital. Dmand AI links Dr. Diaz to 2 more medical groups.
Does Dr. Rolando Diaz accept Medicare?
Yes. CMS data shows Dr. Diaz billed Medicare for 13 services in 2020, and Dr. Diaz accepts Medicare assignment.
How many Medicare patients does Dr. Rolando Diaz see?
CMS counts 16 Medicare patients who saw Dr. Diaz in 2024, with an average age of 76.
What services does Dr. Rolando Diaz bill to Medicare?
In 2020, Dr. Diaz's most billed Medicare services were medical service (99218).
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What drugs does Dr. Rolando Diaz prescribe most?
In 2024 Medicare Part D data, Dr. Diaz's most prescribed drugs by claims were Sulindac, Azithromycin and Celecoxib.
Has Dr. Rolando Diaz received payments from drug or device companies?
CMS Open Payments shows $257 in general payments to Dr. Diaz from 3 companies from 2016 to 2021. The largest total came from Pfizer Inc.
How long has Dr. Rolando Diaz been practicing?
Dr. Diaz graduated from medical school in 1983, 43 years ago.
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