Marielly Sierra Mercado, MD - Medicare Endocrinology in San Juan, PR

Marielly Sierra Mercado, MD is a medicare enrolled "Internal Medicine - Endocrinology, Diabetes & Metabolism" physician in San Juan, Puerto Rico. She graduated from medical school in 2011 and has 13 years of diverse experience with area of expertise as Endocrinology. Her current practice location is University District Hospital, Medical Center Bo Monacillos, San Juan, Puerto Rico. You can reach out to her office (for appointments etc.) via phone at (787) 754-0101.

Marielly Sierra Mercado is licensed to practice in Puerto Rico (license number 19192) and she also participates in the medicare program. She may accept medicare assignments (which means she may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and her NPI Number is 1013258482.

Contact Information

Marielly Sierra Mercado, MD
University District Hospital, Medical Center Bo Monacillos,
San Juan, PR 00935
(787) 754-0101
Not Available



Physician's Profile

Full NameMarielly Sierra Mercado
GenderFemale
SpecialityEndocrinology
Experience13 Years
LocationUniversity District Hospital, San Juan, Puerto Rico
Accepts Medicare AssignmentsMay be. She may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Marielly Sierra Mercado graduated from medical school in 2011
  NPI Data:
  • NPI Number: 1013258482
  • Provider Enumeration Date: 03/11/2013
  • Last Update Date: 07/26/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 1153669213
  • Enrollment ID: I20190214002620

Medical Identifiers

Medical identifiers for Marielly Sierra Mercado such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1013258482NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 19192 (Puerto Rico)Secondary
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism 19192 (Puerto Rico)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Marielly Sierra Mercado allows following entities to bill medicare on her behalf.
Entity NamePro Health Clinical Services Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881003382
PECOS PAC ID: 1759692478
Enrollment ID: O20150623000748

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Entity NameUnited Endocrinology Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760969109
PECOS PAC ID: 0244578300
Enrollment ID: O20190214002376

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Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Marielly Sierra Mercado is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Marielly Sierra Mercado, MD
Po Box 366791,
San Juan, PR 00936-6791

Ph: (787) 754-0101
Marielly Sierra Mercado, MD
University District Hospital, Medical Center Bo Monacillos,
San Juan, PR 00935

Ph: (787) 754-0101

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Internal Medicine Doctors in San Juan, PR

Dr. Antonio Luis Diaz Hernandez, MD
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 1492 Ave La Constitucion Suite 717, Edificio Centro Europa, San Juan, PR 00907
Phone: 787-723-5017    
Reynerio E Perez Ramirez, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 1492 Ave Ponce De Leon, Cond Centro Europa Suite 717, Cardiocare & Vascular Cen, San Juan, PR 00907
Phone: 787-723-5015    
Dr. Gilberto Rivera,
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: Torre Auxilio Mutuo Ponce De Leon Ave 735, Suite 408, San Juan, PR 00917
Phone: 787-227-0408    Fax: 787-229-0408
Dr. Martha Yanetty Gomez, MD
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: Carr 21 U 3 19, Las Lomas, San Juan, PR 00921
Phone: 787-775-0100    Fax: 787-775-0700
Dr. Alberto T Lopez-enriquez, MD,FACP
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 431 Ave Ponce De Leon, Nacional Plaza Suite 900, San Juan, PR 00917
Phone: 787-751-2277    Fax: 787-751-2278
Dr. Gregorio A. Cortes-soto, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 1826 Ave Fernandez Juncos, San Juan, PR 00909
Phone: 787-726-8396    Fax: 787-727-6672
Dr. Waldemar Charles Rios, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Medicare Enrolled
Practice Location: 400 Ave Domenech, Suite 607, San Juan, PR 00918
Phone: 787-250-0084    Fax: 787-250-2181

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