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Edit this profileAt a glance
- Cesar Gonzalez #463 Urb Roosevelt, San Juan, PR 00918
About Dr. Marrero
Carlos C. Marrero, MD practices family medicine — geriatric medicine in San Juan, PR. According to Medicare claims data, Carlos cared for 110 Medicare patients across 375 services. The services billed most often include established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and diagnostic exam of voice box using an endoscope with mirror. The provider's National Provider Identifier (NPI) is 1083774228.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
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) 274-0277
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
CESAR GONZALEZ #463 URB ROOSEVELT
San Juan, PR 00918
Conditions Commonly Evaluated or Treated
Within Family Medicine — Geriatric 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
Bones & joints
Brain & nerves
Brain & Nervous System
- Delirium
- Dementia with behavioral symptoms
- Essential tremor
- Parkinson's disease
- Peripheral neuropathy
General Health
Heart & Circulation
- Poor Circulation
- Congestive heart failure
- High blood pressure
- High cholesterol
- Poor Circulation and Swollen Legs
Mental Health
Mobility & Balance
Nutrition & digestion
Skin health
Most searched conditions
Back & spine
Blood & Immunity
Brain & memory
Circulation & balance
Digestive health
Digestive Health
Ear, Nose & Throat
Endocrine & Metabolic
Eye health
Foot care
Heart health
Hormones & thyroid
Infections
Joints & Bones
Kidney & Urinary
Lung health
Men's health
Skin
Sleep
Sleep & nerves
Urinary & Bladder
Procedures & services
Bladder & bowel
Cancer screening
Caregiver support
Diagnostic Testing
Foot Care
Home Care
Home care
Mental Health
Mobility & Balance
Mobility & independence
Nutrition
Pain management
Preventive Care
Screening & Imaging
Senior care evaluations
Senior Care Planning
- Advance Care Planning
- Assisted Living Placement Assessment
- Caregiver Counseling
- Senior Driving Safety Assessment
Therapy & rehab
Urinary & Bladder
Vaccines
Wound care
Most searched procedures
Brain & memory
Ear, Nose & Throat
Heart health
Injections & Medications
Lab tests
Lung health
Medications
Pain Management
Palliative & End of Life
Skin
Procedures Most Often Billed to Medicare
375 services · 110 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of voice box using an endoscope with mirror | Procedure | 31505 |
22 | Too few peers to compare |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
14 | Too few peers to compare |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
280 | More than most peers in Family Medicine — Geriatric… |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
59 | Less often than most peers in Family Medicine — Geriatric… |
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.
Also at this address 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other family doctors in San Juan 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1982 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Marrero's specialty?
Dr. Marrero is a family doctor in San Juan, PR. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine — Geriatric Medicine”.
NPI registry
Where can I find Dr. Marrero?
Dr. Marrero is listed at Cesar Gonzalez #463 Urb Roosevelt, San Juan, PR 00918. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Marrero?
The number on file is (787) 274-0277. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Marrero's NPI number?
Dr. Marrero's National Provider Identifier is 1083774228. 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
What is Dr. Marrero's medical education?
Dr. Marrero attended Other, graduating in 1982. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Marrero been practicing?
Dr. Marrero has 44 years experience. Calculated from a graduation year of 1982, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Marrero known for?
According to Medicare billing data, Dr. Marrero performs procedures including diagnostic exam of voice box using an endoscope with mirror; provides treatments such as test to measure expiratory airflow and volume, 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
Guide.md listings do not constitute medical advice or an endorsement.