Jacob Calvin Marcelo
NPI 1770469629 · Physician Assistant · Ontario, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jacob Calvin Marcelo is a Physician Assistant provider in Ontario, CA (NPI 1770469629).
Provider details
- NPI number
- 1770469629
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
83% 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
- 2025-08-14
- Last updated
- 2025-08-14
- Certified
- 2025-08-14
Frequently asked questions
- What is Jacob Calvin Marcelo's NPI number?
- Jacob Calvin Marcelo's National Provider Identifier (NPI) is 1770469629, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jacob Calvin Marcelo's specialty?
- Jacob Calvin Marcelo is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jacob Calvin Marcelo located?
- Jacob Calvin Marcelo's practice location on file with NPPES is 3550 E Philadelphia St, Ontario, CA 91761-2962.
- What is Jacob Calvin Marcelo's phone number?
- The practice phone number listed in the NPPES registry for Jacob Calvin Marcelo is (909) 773-0022.
- Does Jacob Calvin Marcelo accept Medicare?
- Jacob Calvin Marcelo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jacob Calvin Marcelo's NPI active?
- Yes — Jacob Calvin Marcelo's NPI (1770469629) is active in the NPPES registry as of the last update on 2025-08-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.