Ruben Alfonso Hernandez Acosta, MD - Medicare Infectious Disease in Saint Louis, MO

Ruben Alfonso Hernandez Acosta, MD is a medicare enrolled "Internal Medicine - Infectious Disease" physician in Saint Louis, Missouri. He graduated from medical school in 2018 and has 8 years of diverse experience with area of expertise as Infectious Disease. He is a member of the group practice Ssm Health Care Group and his current practice location is 1201 S Grand Blvd, Saint Louis, Missouri. You can reach out to his office (for appointments etc.) via phone at (314) 257-8000.

Ruben Alfonso Hernandez Acosta is licensed to practice in Missouri (license number 2025036579) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1740834688.

Contact Information

Ruben Alfonso Hernandez Acosta, MD
1201 S Grand Blvd,
Saint Louis, MO 63104-1016
(314) 257-8000
Not Available

Map and Direction




Physician's Profile

Full NameRuben Alfonso Hernandez Acosta
GenderMale
SpecialityInfectious Disease
Experience8 Years
Location1201 S Grand Blvd, Saint Louis, Missouri
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Ruben Alfonso Hernandez Acosta graduated from medical school in 2018
  NPI Data:
  • NPI Number: 1740834688
  • Provider Enumeration Date: 07/29/2019
  • Last Update Date: 09/03/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 4183956923
  • Enrollment ID: I20250926002784

Medical Identifiers

Medical identifiers for Ruben Alfonso Hernandez Acosta such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1740834688NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RI0200XInternal Medicine - Infectious Disease 2025036579 (Missouri)Primary
207R00000XInternal Medicine 2025036579 (Missouri)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Louis University HospitalSaint louis, MOHospital
Ssm Health St Mary's Hospital Jefferson CityJefferson city, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ssm Health Care Group0143608372921

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. Ruben Alfonso Hernandez Acosta 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
Ruben Alfonso Hernandez Acosta, MD
1201 S Grand Blvd,
Saint Louis, MO 63104-1016

Ph: (314) 257-8000
Ruben Alfonso Hernandez Acosta, MD
1201 S Grand Blvd,
Saint Louis, MO 63104-1016

Ph: (314) 257-8000

Reviews and Comments


Internal Medicine Doctors in Saint Louis, MO

Dr. Margaret Leighton Mcnairy, MD
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Practice Location: 1 Barnes Jewish Hospital Plz, Div Im Hospitalist, Saint Louis, MO 63110
Phone: 314-362-1700    Fax: 314-362-9878
Conor Mccartney, M.D.
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Practice Location: 915 N Grand Blvd, Saint Louis, MO 63106
Phone: 314-652-4100    
Dr. Faris Adam Bakeer, MD
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Phone: 314-362-1700    Fax: 314-362-9878
Dr. Rehan Rais, MD
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1 Barnes Jewish Hospital Plz, Div Im Hospitalist, Saint Louis, MO 63110
Phone: 314-362-1700    Fax: 314-362-9878
Dr. Randy Olivier Laine, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 1 Barnes Jewish Hospital Plz, Div Im Hospitalist, Saint Louis, MO 63110
Phone: 314-362-1700    Fax: 314-362-9878
Dr. Erin Leigh Dyer, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 4901 Forest Park Ave, Div Im General Med, Ste 241, Saint Louis, MO 63108
Phone: 314-362-5060    Fax: 314-362-6959
Nakul Shah,
Infectious Disease
Medicare: Medicare Enrolled
Practice Location: 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110
Phone: 314-362-5000    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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