Dr. Miguel A. Muniz Diaz, MD
- Medicare services, 2024
- 43
- Medicare patients, 2024
- 11
- Part D claims, 2024
- 8,797
- Industry payments
- $445
- State license
- 1
- Practice address
- 2 Cll 11, Bayamon, PR 00959
- Practice phone
- Call (787) 797-8030
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Muniz Diaz's professional email, personal email and mobile number
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Dr. Miguel A. Muniz Diaz is an internist in Bayamon, Puerto Rico
Dr. Muniz Diaz practices in Bayamon, Puerto Rico.
Dr. Muniz Diaz's NPI, 1427165034, was assigned on August 23, 2006. Dr. Muniz Diaz holds Puerto Rico license 7934.
- NPI
- 1427165034NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406013069
- NPI enumeration date
- August 23, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (787) 797-8030
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Miguel A. Muniz Diaz's practice address is in Bayamon, Puerto Rico
Dr. Muniz Diaz's practice address in the NPI Registry is 2 Cll 11, Bayamon, PR 00959, in Bayamon County. The practice phone is (787) 797-8030.
- NPI Registry address2 Cll 11, Bayamon, PR 00959 · Bayamon CountyPhone(787) 797-8030
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Miguel A. Muniz Diaz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Muniz Diaz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Muniz Diaz's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Miguel A. Muniz Diaz is one of 805 internists in Puerto Rico
Internal medicine is Dr. Muniz Diaz's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Muniz Diaz is licensed in Puerto Rico.
Specialties and state licenses
- Internal medicine, Puerto RicoPrimary
Internists near Dr. Muniz Diaz
Counts of internists 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. Miguel A. Muniz Diaz billed Medicare for 43 services in 2024
CMS data shows 43 Medicare services from Dr. Muniz Diaz across 1 procedure code in 2024, all of them office visits, for 11 Medicare patients. Medicare paid $2,192 for them. Every service was in an office.
Dr. Muniz Diaz's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Office and hospital visits
- 2022: 772024: 4344%
Dr. Muniz Diaz compared with the Puerto Rico median for internists, 2024
- Dr. Muniz Diaz
- Puerto Rico median
- Medicare services
- 43vs 5014% below
- Medicare patients
- 11vs 2352% below
- Part D claims
- 8,100vs 2,7283.0 times
Medians across 820 internists in Puerto Rico with Dmand AI profiles that report each measure.
Dr. Muniz Diaz's most billed Medicare procedure codes, 2024
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. Muniz Diaz and other internists in Puerto Rico.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Miguel A. Muniz Diaz treated 11 Medicare patients in 2024, average age 78
CMS counts 11 Medicare patients who saw Dr. Muniz Diaz in 2024. Their average risk score is 1.28, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Muniz Diaz's median patient age at 88, with 100% women.
Dr. Muniz 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 88
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Miguel A. Muniz Diaz wrote 8,797 Medicare Part D claims in 2024
In 2024, Dr. Muniz Diaz wrote 8,797 Medicare Part D claims for 421 patients. 90% of them were for generic drugs. CMS names the drug for 8,100 of them, across 95 drugs with 11 or more claims each, at $334,741 in total drug cost. In 2023, CMS named 7,753 claims across 91 drugs.
Dr. Muniz Diaz's Part D claims by kind of drug, 2024
- Generic7,952 claims90%
- Brand-name786 claims9%
- Other59 claims1%
Dr. Muniz 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. Muniz Diaz's Part D claims, 2024
- Opioids1%126 of 8,797 claims
- Antibiotics2%170 of 8,797 claims
- Antipsychotics, patients 65 and over0%14 of 8,797 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: 7,7532024: 8,1004%
Drugs named by CMS: 95 in 2024, 91 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. Miguel A. Muniz Diaz takes part in Medicare
Dr. Muniz Diaz accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Melanoma (skin cancer) excision: 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. Miguel A. Muniz Diaz received $445 in industry payments from 2016 to 2023
CMS Open Payments shows 13 general payments to Dr. Muniz Diaz from 7 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $137.
General payments to Dr. Muniz Diaz by program year, 2016 to 2023
Companies that paid Dr. Muniz Diaz 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. Miguel A. Muniz Diaz's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Miguel A. Muniz Diaz
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What is Dr. Miguel A. Muniz Diaz's NPI number?
Dr. Miguel A. Muniz Diaz's NPI number is 1427165034. It was assigned on August 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Miguel A. Muniz Diaz?
Dr. Miguel A. Muniz Diaz is an internist in Bayamon, Puerto Rico. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Miguel A. Muniz Diaz practice?
Dr. Muniz Diaz practices at 2 Cll 11, Bayamon, PR 00959.
What is Dr. Miguel A. Muniz Diaz's office phone number?
The practice phone on file for Dr. Muniz Diaz is (787) 797-8030.
What is Dr. Miguel A. Muniz Diaz's medical license number?
Dr. Muniz Diaz holds Puerto Rico license 7934.
Does Dr. Miguel A. Muniz Diaz accept Medicare?
Yes. CMS data shows Dr. Muniz Diaz billed Medicare for 43 services in 2024, and Dr. Muniz Diaz accepts Medicare assignment.
How many Medicare patients does Dr. Miguel A. Muniz Diaz see?
CMS counts 11 Medicare patients who saw Dr. Muniz Diaz in 2024, with an average age of 78.
What services does Dr. Miguel A. Muniz Diaz bill to Medicare?
In 2024, Dr. Muniz Diaz's most billed Medicare services were office visit, established patient (99213).
What drugs does Dr. Miguel A. Muniz Diaz prescribe most?
In 2024 Medicare Part D data, Dr. Muniz Diaz's most prescribed drugs by claims were Atorvastatin Calcium, Alendronate Sodium and Gabapentin.
Has Dr. Miguel A. Muniz Diaz received payments from drug or device companies?
CMS Open Payments shows $445 in general payments to Dr. Muniz Diaz from 7 companies from 2016 to 2023. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Miguel A. Muniz Diaz been practicing?
Dr. Muniz Diaz graduated from medical school in 1982, 44 years ago.
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