MRS. VIRGINIA MARGARITA SANTIAGO MERCADO BSMT
NPI 1326024126
Clinical Medical Laboratory in San Juan, PR

Q: What is Virginia Santiago Mercado's NPI number?

The NPI number for Virginia Santiago Mercado is 1326024126. It was assigned to this individual provider in the NPPES registry on December 22, 2005.

Q: What is Virginia Santiago Mercado's specialty?

The primary specialty registered for this NPI is Clinical Medical Laboratory with taxonomy code 291U00000X.

Active since December 22, 2005

369 AVE DOMENECH, SAN JUAN, PR 00918(787) 765-2556(787) 758-0308 Get Directions Write a Review

NPPES record last updated: June 12, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Mrs. Virginia Margarita Santiago Mercado Bsmt NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. VIRGINIA MARGARITA SANTIAGO MERCADO BSMT (NPI 1326024126) is an individual clinical medical laboratory provider in San Juan, Puerto Rico, licensed in Puerto Rico (315) and active in the NPI registry since December 2005.

NPPES Registry Identity

NPI1326024126

Entity TypeIndividualFemale

Primary Taxonomy291U00000X

Provider Legal NameMRS. VIRGINIA MARGARITA SANTIAGO MERCADOCredential: BSMT

Location Address369 AVE DOMENECHSan Juan, PR 00918-3708

Mailing Address369 Domenech Ave.San Juan, PR 00918 · (787) 765-2556 · Fax (787) 758-0308

Phone(787) 765-2556

Fax(787) 758-0308

Sole ProprietorNo

Enumeration DateDecember 22, 2005

Last NPPES UpdateJune 12, 2026

NPPES CertifiedJune 12, 2026

✔ NPI 1326024126 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinical Medical LaboratoryLaboratories

Taxonomy Code291U00000X

License✔ Licensed in PR · 315

Definition

(1) A clinical laboratory is a facility for the biological, microbiological, serological, chemical, immunohematological, hematological, biophysical, cytological, pathological, or other examination of materials derived from the human body for the purpose of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, human beings. These examinations also include procedures to determine, measure, or otherwise describe the presence or absence of various substances or organisms in the body. Facilities only collecting or preparing specimens (or both) or only serving as a mailing service and not performing testing are not considered clinical laboratories. (2) Any facility that examines materials from the human body for purposes of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, or the assessment of, the health of human beings. Typical divisions of a clinical laboratory include hematology, cytology, bacteriology, histology, biochemistry, medical toxicology, and serology.

Areas of Expertise CMS Part B claims 17

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

151 services58 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

120 services53 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

109 services53 patients

Blood test, lipids (cholesterol and triglycerides) 80061

A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.

97 services50 patients

Manual urinalysis test with examination using microscope, non-automated 81000

A manual urinalysis test involves studying a urine sample under a microscope. This non-automated method helps identify any abnormal substances present. It's a useful tool for detecting potential health concerns early. The process is simple and non-invasive.

97 services46 patients

Blood test, thyroid stimulating hormone (tsh) 84443

A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.

81 services47 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

74 services42 patients

Vitamin d-3 level 82306

A Vitamin D-3 level test measures the amount of Vitamin D-3, a crucial nutrient, in your body. This test helps identify if your levels are too low or too high. Low levels may lead to bone weakness, while high levels could harm your kidneys. It's a simple blood test.

38 services33 patients

Bacterial culture, any other source except urine, blood or stool, aerobic 87070

A bacterial culture is a test that helps identify harmful bacteria in your body. In this case, a sample from any part other than urine, blood or stool is collected. The sample is placed in a special environment to promote bacteria growth. It helps in diagnosing infections and determining the best treatment.

37 services21 patients

Urine microalbumin (protein) level 82043

The urine microalbumin level test measures the amount of a protein called albumin in your urine. This test helps to detect early signs of kidney damage. High levels of albumin may suggest your kidneys aren't functioning properly. It's a simple, non-invasive test that involves providing a urine sample.

32 services25 patients

Psa (prostate specific antigen) measurement, total 84153

PSA measurement is a simple blood test that checks for a specific protein produced by your body. High levels could indicate a health issue that needs further investigation. It's often used to monitor general wellness and is part of routine health screening.

32 services18 patients

Red blood cell sedimentation rate, to detect inflammation, non-automated 85651

The Red Blood Cell Sedimentation Rate test measures how quickly red blood cells settle at the bottom of a test tube. If they settle faster than normal, it may indicate inflammation in the body. This test is non-automated, meaning it's manually performed by a lab technician.

32 services18 patients

Thyroxine (thyroid chemical), free 84439

The Thyroxine (thyroid chemical), free test is a blood test that measures the level of free T4 in your body. T4 is a hormone produced by your thyroid gland and is essential for growth and metabolism. If your T4 levels are too high or too low, it could indicate a thyroid disorder.

30 services21 patients

Cyanocobalamin (vitamin b-12) level 82607

A Cyanocobalamin (Vitamin B-12) level test is a blood test that checks the amount of Vitamin B-12 in your body. This vitamin is vital for nerve function and the creation of red blood cells. Low or high levels could indicate a potential health issue.

29 services23 patients

Thyroxine (thyroid chemical), total 84436

A Thyroxine (thyroid chemical) total test measures the amount of thyroxine, a hormone produced by your thyroid gland, in your blood. This hormone helps regulate your body's metabolism. The test can help diagnose thyroid disorders, such as hypothyroidism or hyperthyroidism.

17 services11 patients

Blood test, clotting time 85610

A clotting time blood test helps determine how quickly your blood forms clots, a process crucial to stop bleeding. During the test, a small blood sample is taken from your arm. The sample is then analyzed in a lab to see how long it takes for a clot to form.

14 services11 patients

Coagulation assessment blood test, plasma or whole blood 85730

A coagulation assessment blood test evaluates how well your blood clots, helping identify potential bleeding or clotting disorders. This test uses a sample of your plasma or whole blood. It's a standard procedure to ensure your body's clotting process is functioning properly.

14 services11 patients

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

OPTOMETRICS/PUERTO RICO LOW VISION CENTER, INC.

Clinic/Center

369 AVE DOMENECH
SAN JUAN, PR 00918

San Juan Municipio (787) 754-0814

DR. CARMEN M SUAREZ-CASTRO O.D

Optometrist (Low Vision Rehabilitation)

369 AVE DOMENECH
SAN JUAN, PR 00918

San Juan Municipio (787) 754-0814

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Virginia Santiago Mercado's NPI number?

The NPI number for Virginia Santiago Mercado is 1326024126. It was assigned to this individual provider in the NPPES registry on December 22, 2005.

Where is Virginia Santiago Mercado located?

Virginia Santiago Mercado practices at 369 Ave Domenech, San Juan, PR 00918. The listed phone number is (787) 765-2556.

What is Virginia Santiago Mercado's specialty?

The primary specialty registered for this NPI is Clinical Medical Laboratory with taxonomy code 291U00000X.

When was this NPI record last updated?

The NPPES record for Virginia Santiago Mercado was last updated on June 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.