Physician Profile
Milagros DEL CARMEN Marrero, MD
Unclaimed ProfileAbout Dr. Marrero
Milagros DEL CARMEN Marrero, MD practices internal medicine in San Juan, PR. Milagros is a 1981 graduate of University Central del Caribe Escuela de Medicina. According to Medicare claims data, Milagros cared for 43 Medicare patients across 73 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes, and routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (787) 764-5694
- Email not available
Practice Locations
953 AMERICO MIRANDA AVENUE
San Juan, PR 00921
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
- Overactive Bladder and Leakage
Lungs & Breathing
Mental Health
- Generalized anxiety disorder
- Insomnia and Sleep Problems
Neurologic and behavioral
Pain
Rheumatologic and pain
- Osteoarthritis
Procedures & services
Most searched procedures
Preventive and evaluation
Screening and diagnostic testing
Bones & Joints
Brain and nerves
- Epley Maneuver
Cancer screening
Digestive
Exams & Consultations
Heart & Circulation
Heart health
Imaging referral
Immunizations
Lab tests
Lungs & Breathing
Metabolic & Weight
Minor procedures
Office procedures
Office Procedures
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
Procedures Most Often Billed to Medicare
73 services · 43 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
15 | Less often than most peers in Internal Medicine |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
42 | Less often than most peers in Internal Medicine |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
16 | Less often than most peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internists in San Juan 8
Same specialty, same city.
Trained at University Central del Caribe Escuela de Medicina 8
Other providers in the same specialty who trained at the same institution.
Class of 1981 at University Central del Caribe Escuela de Medicina 7
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 8
Providers in PR who bill this service to Medicare most often.
Common questions
What does Dr. Marrero specialize in?
Dr. Marrero is an internist in San Juan, PR. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Dr. Marrero located?
Dr. Marrero is listed at 953 Americo Miranda Avenue, San Juan, PR 00921. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Marrero's phone number?
The number on file is (787) 764-5694. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Marrero's NPI number?
Dr. Marrero's National Provider Identifier is 1730169244. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Marrero go to medical school?
Dr. Marrero attended University Central del Caribe Escuela de Medicina, graduating in 1981. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Marrero been practicing?
Dr. Marrero has 45 years experience. Calculated from a graduation year of 1981, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Marrero do most often?
According to Medicare billing data, Dr. Marrero provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Marrero confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Marrero. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.