Dr. Nelson Carlos Diaz Baez, MD
- Medicare services, 2021
- 2,745
- Part D claims, 2024
- 9,001
- Industry payments
- $24
- Affiliated sites
- 3
- Medical group
- 1
- Practice address
- 100 Granate, San Juan, PR 00926
- Practice phone
- Call (787) 856-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hospital Pavia Yauco
San Juan, Puerto Rico
Find Dr. Diaz Baez's professional email, personal email and mobile number
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Dr. Nelson Carlos Diaz Baez is a general practice physician in San Juan, Puerto Rico
Dr. Diaz Baez practices at Hospital Pavia Yauco in San Juan, Puerto Rico.
Dr. Diaz Baez's NPI, 1558457218, was assigned on October 4, 2006. Dr. Diaz Baez holds Puerto Rico license 14444.
- NPI
- 1558457218NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8426088683
- NPI enumeration date
- October 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (787) 856-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nelson Carlos Diaz Baez practices at Hospital Pavia Yauco in San Juan, Puerto Rico
Dr. Diaz Baez's primary practice is Hospital Pavia Yauco, at 100 Granate, San Juan, PR 00926 in San Juan County. The practice phone is (787) 856-1000.
- Hospital Pavia Yauco100 Granate, San Juan, PR 00926 · San Juan CountyPhone(787) 856-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Nelson Carlos Diaz Baez is affiliated with 4 sites of care and 1 medical group
Dr. Diaz Baez's primary practice is Hospital Pavia Yauco in San Juan, Puerto Rico. Dmand AI also links Dr. Diaz Baez to 2 hospices, 1 group practice or clinic and 1 medical group, 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. Nelson Carlos Diaz Baez's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diaz Baez practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hospital Pavia Yauco | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nelson Carlos Diaz Baez is one of 2,604 general practice physicians in Puerto Rico
General practice is Dr. Diaz Baez's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Diaz Baez is licensed in Puerto Rico.
Specialties and state licenses
- General practice, Puerto RicoPrimary
General practice physicians near Dr. Diaz Baez
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. Nelson Carlos Diaz Baez billed Medicare for 2,745 services in 2021
CMS data shows 2,745 Medicare services from Dr. Diaz Baez across 4 procedure codes in 2021. Medicare paid $74,352 for them. Every service was in an office.
Dr. Diaz Baez compared with the Puerto Rico median for general practice physicians, 2021
- Dr. Diaz Baez
- Puerto Rico median
- Medicare services
- 2,745vs 3480.7 times
- Part D claims
- 8,421vs 73511.5 times
Medians across 3,001 general practice physicians in Puerto Rico with Dmand AI profiles that report each measure.
Dr. Diaz Baez's most billed Medicare procedure codes, 2021
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. Diaz Baez and other general practice physicians in Puerto Rico.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nelson Carlos Diaz Baez's patients have a median age of 78
Across all payers, Dmand AI patient panel data puts Dr. Diaz Baez's median patient age at 78, with 33% women.
Dr. Diaz Baez's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women33%
- Men67%
Source: Dmand AI Patient Panel Data
Dr. Nelson Carlos Diaz Baez wrote 9,001 Medicare Part D claims in 2024
In 2024, Dr. Diaz Baez wrote 9,001 Medicare Part D claims for 305 patients. 91% of them were for generic drugs. CMS names the drug for 8,421 of them, across 135 drugs with 11 or more claims each, at $194,552 in total drug cost. In 2023, CMS named 5,774 claims across 110 drugs.
Dr. Diaz Baez's Part D claims by kind of drug, 2024
- Generic8,188 claims91%
- Brand-name725 claims8%
- Other88 claims1%
Dr. Diaz Baez'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 Baez's Part D claims, 2024
- Opioids0%12 of 9,001 claims
- Antibiotics1%131 of 9,001 claims
- Antipsychotics, patients 65 and over2%151 of 9,001 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: 5,7742024: 8,42146%
Drugs named by CMS: 135 in 2024, 110 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. Nelson Carlos Diaz Baez takes part in Medicare
Dr. Diaz Baez 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. Nelson Carlos Diaz Baez received $24 in industry payments in 2021
CMS Open Payments shows 1 general payment to Dr. Diaz Baez from 1 drug or device company in 2021. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $24.
Companies that paid Dr. Diaz Baez the most, 2021 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nelson Carlos Diaz Baez'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) |
| 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. Nelson Carlos Diaz Baez
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. Nelson Carlos Diaz Baez's NPI number?
Dr. Nelson Carlos Diaz Baez's NPI number is 1558457218. It was assigned on October 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Nelson Carlos Diaz Baez?
Dr. Nelson Carlos Diaz Baez 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. Nelson Carlos Diaz Baez practice?
Dr. Diaz Baez practices at 100 Granate, San Juan, PR 00926. Dr. Diaz Baez's primary practice is Hospital Pavia Yauco in San Juan, Puerto Rico. Dmand AI also links Dr. Diaz Baez to 2 hospices, 1 group practice or clinic and 1 medical group.
What is Dr. Nelson Carlos Diaz Baez's office phone number?
The practice phone on file for Dr. Diaz Baez is (787) 856-1000.
What is Dr. Nelson Carlos Diaz Baez's medical license number?
Dr. Diaz Baez holds Puerto Rico license 14444.
Does Dr. Nelson Carlos Diaz Baez accept Medicare?
Yes. CMS data shows Dr. Diaz Baez billed Medicare for 2,745 services in 2021, and Dr. Diaz Baez accepts Medicare assignment.
What services does Dr. Nelson Carlos Diaz Baez bill to Medicare?
In 2021, Dr. Diaz Baez's most billed Medicare services were medical service (0002A), medical service (0001A) and medical service (0003A).
What drugs does Dr. Nelson Carlos Diaz Baez prescribe most?
In 2024 Medicare Part D data, Dr. Diaz Baez's most prescribed drugs by claims were Atorvastatin Calcium, Famotidine and Levothyroxine Sodium.
Has Dr. Nelson Carlos Diaz Baez received payments from drug or device companies?
CMS Open Payments shows $24 in general payments to Dr. Diaz Baez from 1 company from 2021 to 2021. The largest total came from Abbott Laboratories.
How long has Dr. Nelson Carlos Diaz Baez been practicing?
Dr. Diaz Baez graduated from medical school in 1999, 27 years ago.
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