Ruby Alonzo, M.D.
NPI 1386776193 · Obstetrics & Gynecology Physician · Prince Frederick, MD
Ruby Alonzo, M.D. is a Obstetrics & Gynecology Physician provider in Prince Frederick, MD (NPI 1386776193).
Provider details
- NPI number
- 1386776193
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- D0029702 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-09
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ruby Alonzo's NPI number?
- Ruby Alonzo's National Provider Identifier (NPI) is 1386776193, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruby Alonzo's specialty?
- Ruby Alonzo is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Ruby Alonzo located?
- Ruby Alonzo's practice location on file with NPPES is 110 Hospital Rd, Prince Frederick, MD 20678-4019.
- What is Ruby Alonzo's phone number?
- The practice phone number listed in the NPPES registry for Ruby Alonzo is (410) 535-5610.
- Is Ruby Alonzo's NPI active?
- Yes — Ruby Alonzo's NPI (1386776193) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.