Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Omar D Santoyo Pacheco, MD

Individual provider Hospitalist Physician · NPI 1467695387

Dr. Omar D Santoyo Pacheco, MD is an Internal Medicine in Springfield, Massachusetts. Qualified in 1997, 29 years ago. Practices with Mercy Inpatient Medical Associates Inc, a 59-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
29
Licensed in
MA
In the registry since
2009
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

759 Chestnut St
Springfield, MA 01199-1619
Phone: (413) 794-8120
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 251134 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 251134 (MA)

Record details

NPI number1467695387
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 7, 2009
Last updated in NPPESJune 28, 2012

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Mercy Inpatient Medical Associates Inc — 59 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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