Dr. Lilliam M. Diaz, MD
- Medicare services, 2020
- 14
- Hospital affiliations
- 1
- Industry payments
- $209
- Medical groups
- 2
- State license
- 1
- Practice address
- Rinco Interior 14st, Cayey, PR 00737
- Practice phone
- Call (787) 535-1001
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Grupo Medico Menonita De Cayey
Multi-specialty group site · Cayey, Puerto Rico
Find Dr. Diaz'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. Lilliam M. Diaz is a diagnostic radiologist in Cayey, Puerto Rico
Dr. Diaz practices at Grupo Medico Menonita De Cayey in Cayey, Puerto Rico.
Dr. Diaz's NPI, 1053377523, was assigned on April 25, 2006. Dr. Diaz holds Puerto Rico license 12104.
- NPI
- 1053377523NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0244472561
- NPI enumeration date
- April 25, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (787) 535-1001
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lilliam M. Diaz practices at 2 locations in Cayey, Puerto Rico
Dr. Diaz's primary practice is Grupo Medico Menonita De Cayey, at Rinco Interior 14st, Cayey, PR 00737. The practice phone is (787) 535-1001. The NPI Registry lists Dr. Diaz's practice address as Bo Rincon Sector Las Lomas Carr #14 Km 72-2, Cayey, PR 00736.
- Grupo Medico Menonita De CayeyPrimaryRinco Interior 14st, Cayey, PR 00737Phone(787) 535-1001
- NPI Registry addressBo Rincon Sector Las Lomas Carr #14 Km 72-2, Cayey, PR 00736Phone(787) 535-1001
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Lilliam M. Diaz is affiliated with 2 sites of care and 2 medical groups
Dr. Diaz's primary practice is Grupo Medico Menonita De Cayey in Cayey, Puerto Rico. Dr. Diaz is also affiliated with Hospital Menonita Cayey. The medical group on file is Hospital Menonita Cayey. Dmand AI also links Dr. Diaz to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Lilliam M. Diaz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diaz practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Grupo Medico Menonita De Cayey | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lilliam M. Diaz is one of 167 diagnostic radiologists in Puerto Rico
Diagnostic radiology is Dr. Diaz's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Diaz is licensed in Puerto Rico.
Specialties and state licenses
- Diagnostic radiology, Puerto RicoPrimary
Diagnostic radiologists near Dr. Diaz
Counts of diagnostic radiologists 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. Lilliam M. Diaz billed Medicare for 14 services in 2020
CMS data shows 14 Medicare services from Dr. Diaz across 1 procedure code in 2020. Medicare paid $788 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
- Imaging
- 2019: 132020: 148%
Dr. Diaz compared with the Puerto Rico median for diagnostic radiologists, 2020
- Dr. Diaz
- Puerto Rico median
- Medicare services
- 14vs 11288% below
Medians across 160 diagnostic radiologists 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.
Need commercial claims for Dr. Diaz?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Diaz and other diagnostic radiologists in Puerto Rico.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
How Dr. Lilliam M. 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. Lilliam M. Diaz received $209 in industry payments in 2019
CMS Open Payments shows 2 general payments to Dr. Diaz from 1 drug or device company in 2019. Food and beverage make up the largest share, 100% of the total. Galderma Laboratories, L.P. paid the most, $209.
Companies that paid Dr. Diaz the most, 2019 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Lilliam M. 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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 |
| 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. Lilliam M. 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. Lilliam M. Diaz's NPI number?
Dr. Lilliam M. Diaz's NPI number is 1053377523. It was assigned on April 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Lilliam M. Diaz?
Dr. Lilliam M. Diaz is a diagnostic radiologist in Cayey, Puerto Rico. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Lilliam M. Diaz practice?
Dr. Diaz practices at Rinco Interior 14st, Cayey, PR 00737. Dr. Diaz also practices at Bo Rincon Sector Las Lomas Carr #14 Km 72-2, Cayey, PR 00736. Dr. Diaz's primary practice is Grupo Medico Menonita De Cayey in Cayey, Puerto Rico. Dmand AI also links Dr. Diaz to 1 medical group.
What is Dr. Lilliam M. Diaz's office phone number?
The practice phone on file for Dr. Diaz is (787) 535-1001.
What is Dr. Lilliam M. Diaz's medical license number?
Dr. Diaz holds Puerto Rico license 12104.
Which hospitals is Dr. Lilliam M. Diaz affiliated with?
Dr. Diaz is affiliated with Hospital Menonita Cayey.
What medical group is Dr. Lilliam M. Diaz part of?
Dr. Diaz is linked to Hospital Menonita Cayey. Dmand AI links Dr. Diaz to 1 more medical group.
Does Dr. Lilliam M. Diaz accept Medicare?
Yes. CMS data shows Dr. Diaz billed Medicare for 14 services in 2020, and Dr. Diaz accepts Medicare assignment.
What services does Dr. Lilliam M. Diaz bill to Medicare?
In 2020, Dr. Diaz's most billed Medicare services were diagnostic imaging (70551).
Has Dr. Lilliam M. Diaz received payments from drug or device companies?
CMS Open Payments shows $209 in general payments to Dr. Diaz from 1 company from 2019 to 2019. The largest total came from Galderma Laboratories, L.P.
How long has Dr. Lilliam M. Diaz been practicing?
Dr. Diaz's NPI was assigned in 2006.
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