Dr Omar D Santoyo Pacheco, MD - Medicare Internal Medicine in Springfield, MA

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Dr Omar D Santoyo Pacheco, MD is a medicare enrolled "Hospitalist" physician in Springfield, Massachusetts. He graduated from medical school in 1997 and has 29 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Mercy Inpatient Medical Associates Inc and his current practice location is 759 Chestnut St, Springfield, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (413) 794-8120.

Dr Omar D Santoyo Pacheco is licensed to practice in Massachusetts (license number 251134) 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 1467695387.

Contact Information

Dr Omar D Santoyo Pacheco, MD
759 Chestnut St,
Springfield, MA 01199-1619
(413) 794-8120
Not Available

Map and Direction




Physician's Profile

Full NameDr Omar D Santoyo Pacheco
GenderMale
SpecialityInternal Medicine
Experience29 Years
Location759 Chestnut St, Springfield, Massachusetts
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:
  • Dr Omar D Santoyo Pacheco graduated from medical school in 1997
  NPI Data:
  • NPI Number: 1467695387
  • Provider Enumeration Date: 04/07/2009
  • Last Update Date: 06/28/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 0244496610
  • Enrollment ID: I20120730000733

Medical Identifiers

Medical identifiers for Dr Omar D Santoyo Pacheco such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1467695387NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 251134 (Massachusetts)Secondary
208M00000XHospitalist 251134 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercy Medical CtrSpringfield, MAHospital
Baystate Medical CenterSpringfield, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mercy Inpatient Medical Associates Inc741684697759

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. Dr Omar D Santoyo Pacheco allows following entities to bill medicare on his behalf.
Entity NameMercy Inpatient Medical Associates Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1407845282
PECOS PAC ID: 7416846977
Enrollment ID: O20040312000517
Entity NameHolyoke Medical Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1750395737
PECOS PAC ID: 2163419383
Enrollment ID: O20040429000312

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. Dr Omar D Santoyo Pacheco 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
Dr Omar D Santoyo Pacheco, MD
280 Chestnut St, 2nd Fl,
Springfield, MA 01199-1619

Ph: (413) 794-5700		Dr Omar D Santoyo Pacheco, MD
759 Chestnut St,
Springfield, MA 01199-1619

Ph: (413) 794-8120

Reviews and Comments


Hospitalist Doctors in Springfield, MA

Yar Muhammad Rasul, MD
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Dr. Zulfiqar A. Chaudhry, M.D.
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Bryant E Benson, MD
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Aruna Adaikkalam, MD
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Robert B Goldberg, M.D.
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Phone: 413-794-4320    Fax: 413-794-1767

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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.