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

Dr. Ruby C Alonzo, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1386776193

Dr. Ruby C Alonzo, MD is an Obstetrics & Gynecology Physician in Prince Frederick, Maryland. Licensed in Maryland. Registered with an NPI since 2007.

Licensed in
MD
In the registry since
2007
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

110 Hospital Rd Ste #211
Prince Frederick, MD 20678-4019
Phone: (410) 535-5610
Fax: (410) 535-6836
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence D0029702 (MD)

Record details

NPI number1386776193
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 9, 2007
Last updated in NPPESJuly 8, 2007
Mailing address110 Hospital Rd, Suite #211, Prince Frederick, MD 20678-4019

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