Dr. Larry J. Vandaalen, MD
- Medicare services, 2024
- 38
- Medicare patients, 2024
- 14
- Part D claims, 2024
- 6,945
- Industry payments
- $2,779
- Affiliated sites
- 1
- Practice address
- 1785 Carr 21, San Juan, PR 00921
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
D'Mujer Health and Prevention Center - San Juan
Mammography / Breast Imaging Center · San Juan, Puerto Rico
Find Dr. Vandaalen's professional email, personal email and mobile number
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Dr. Larry J. Vandaalen is an internist in San Juan, Puerto Rico
Dr. Vandaalen practices at D'Mujer Health and Prevention Center - San Juan in San Juan, Puerto Rico.
Dr. Vandaalen's NPI, 1457341240, was assigned on October 24, 2005. Dr. Vandaalen graduated from University Central Del Caribe Escuela De Medicina in 1980. Dr. Vandaalen holds Puerto Rico license 6837.
- NPI
- 1457341240NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3870668460
- NPI enumeration date
- October 24, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Larry J. Vandaalen practices at D'Mujer Health and Prevention Center - San Juan in San Juan, Puerto Rico
Dr. Vandaalen's primary practice is D'Mujer Health and Prevention Center - San Juan, at 1785 Carr 21, San Juan, PR 00921.
- D'Mujer Health and Prevention Center - San Juan1785 Carr 21, San Juan, PR 00921
Source: Dmand AI Affiliation Data
Dr. Larry J. Vandaalen is affiliated with 1 site of care
Dr. Vandaalen's primary practice is D'Mujer Health and Prevention Center - San Juan in San Juan, Puerto Rico.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Larry J. Vandaalen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Vandaalen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| D'Mujer Health and Prevention Center - San Juan | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Larry J. Vandaalen is one of 805 internists in Puerto Rico
Internal medicine is Dr. Vandaalen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Vandaalen is licensed in Puerto Rico.
Specialties and state licenses
- Internal medicine, Puerto RicoPrimary
Internists near Dr. Vandaalen
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. Larry J. Vandaalen billed Medicare for 38 services in 2024
CMS data shows 38 Medicare services from Dr. Vandaalen across 1 procedure code in 2024, all of them office visits, for 14 Medicare patients. Medicare paid $1,019 for them. Every service was in an office.
Dr. Vandaalen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 472024: 3819%
Dr. Vandaalen compared with the Puerto Rico median for internists, 2024
- Dr. Vandaalen
- Puerto Rico median
- Medicare services
- 38vs 5024% below
- Medicare patients
- 14vs 2339% below
- Part D claims
- 6,301vs 2,7282.3 times
Medians across 820 internists in Puerto Rico with Dmand AI profiles that report each measure.
Dr. Vandaalen'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. Vandaalen and other internists in Puerto Rico.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Larry J. Vandaalen treated 14 Medicare patients in 2024, average age 77
CMS counts 14 Medicare patients who saw Dr. Vandaalen in 2024. The largest group is under 65, with 0 patients. 75% of them have diabetes, and 75% have high blood pressure. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Vandaalen's median patient age at 80, with 67% women.
Dr. Vandaalen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Vandaalen's Medicare patients, 2024
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Dr. Vandaalen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 80
Patient panel by sex, all payers
- Women67%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Larry J. Vandaalen wrote 6,945 Medicare Part D claims in 2024
In 2024, Dr. Vandaalen wrote 6,945 Medicare Part D claims for 350 patients. 79% of them were for generic drugs. CMS names the drug for 6,301 of them, across 105 drugs with 11 or more claims each, at $512,298 in total drug cost. In 2023, CMS named 6,622 claims across 115 drugs.
Dr. Vandaalen's Part D claims by kind of drug, 2024
- Generic5,461 claims79%
- Brand-name1,437 claims21%
- Other47 claims1%
Dr. Vandaalen'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. Vandaalen's Part D claims, 2024
- Opioids0%12 of 6,945 claims
- Antibiotics1%83 of 6,945 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: 6,6222024: 6,3015%
Drugs named by CMS: 105 in 2024, 115 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. Larry J. Vandaalen takes part in Medicare
Dr. Vandaalen 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. Larry J. Vandaalen received $2,779 in industry payments from 2016 to 2024
CMS Open Payments shows 76 general payments to Dr. Vandaalen from 9 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $748.
General payments to Dr. Vandaalen by program year, 2016 to 2024
General payments to Dr. Vandaalen by kind, 2016 to 2024
- Food and beverage$2,776100%
- Education$30%
Companies that paid Dr. Vandaalen the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Larry J. Vandaalen graduated from University Central Del Caribe Escuela De Medicina
Dr. Vandaalen graduated from University Central Del Caribe Escuela De Medicina in 1980.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Larry J. Vandaalen'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Larry J. Vandaalen
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. Larry J. Vandaalen's NPI number?
Dr. Larry J. Vandaalen's NPI number is 1457341240. It was assigned on October 24, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Larry J. Vandaalen?
Dr. Larry J. Vandaalen is an internist in San Juan, Puerto Rico. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Larry J. Vandaalen practice?
Dr. Vandaalen practices at 1785 Carr 21, San Juan, PR 00921. Dr. Vandaalen's primary practice is D'Mujer Health and Prevention Center - San Juan in San Juan, Puerto Rico.
What is Dr. Larry J. Vandaalen's medical license number?
Dr. Vandaalen holds Puerto Rico license 6837.
Does Dr. Larry J. Vandaalen accept Medicare?
Yes. CMS data shows Dr. Vandaalen billed Medicare for 38 services in 2024, and Dr. Vandaalen accepts Medicare assignment.
How many Medicare patients does Dr. Larry J. Vandaalen see?
CMS counts 14 Medicare patients who saw Dr. Vandaalen in 2024, with an average age of 77.
What services does Dr. Larry J. Vandaalen bill to Medicare?
In 2024, Dr. Vandaalen's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Larry J. Vandaalen go to medical school?
Dr. Vandaalen graduated from University Central Del Caribe Escuela De Medicina in 1980.
What drugs does Dr. Larry J. Vandaalen prescribe most?
In 2024 Medicare Part D data, Dr. Vandaalen's most prescribed drugs by claims were Synthroid, Famotidine and Rosuvastatin Calcium.
Has Dr. Larry J. Vandaalen received payments from drug or device companies?
CMS Open Payments shows $2,779 in general payments to Dr. Vandaalen from 9 companies from 2016 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Larry J. Vandaalen been practicing?
Dr. Vandaalen graduated from medical school in 1980, 46 years ago.
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