Mariel Mcguiness, MD
NPI 1356978399 · Internal Medicine Physician · Hilliard, OH
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mariel Mcguiness, MD is a Internal Medicine Physician provider in Hilliard, OH (NPI 1356978399).
Provider details
- NPI number
- 1356978399
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 35.150329 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
12 documented practice locations
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
Additional practice locations (11)
- 26 Hospital DrAthens, OH 45701-2471Phone: (614) 722-6200
- 1800 Heinzerling DrColumbus, OH 43223-3642Phone: (614) 722-6200
- 555 S 18th StColumbus, OH 43205-2654Phone: (614) 722-6200
- 700 Childrens DrColumbus, OH 43205-2664Phone: (614) 722-6200
- 1405 S High StColumbus, OH 43207-1043Phone: (614) 355-9000Fax: (614) 355-9010
- 7450 Hospital DrDublin, OH 43016-9642Phone: (614) 722-6200
- 5665 Venture DrDublin, OH 43017-2159Phone: (614) 722-6200
- 4363 All Seasons DrHilliard, OH 43026-2050Phone: (614) 722-6200
- 830 W High StLima, OH 45801-3971Phone: (614) 726-6200
Registry dates
- Enumerated
- 2020-03-26
- Last updated
- 2026-02-26
- Certified
- 2026-02-26
Frequently asked questions
- What is Mariel Mcguiness's NPI number?
- Mariel Mcguiness's National Provider Identifier (NPI) is 1356978399, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mariel Mcguiness's specialty?
- Mariel Mcguiness is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mariel Mcguiness located?
- Mariel Mcguiness's practice location on file with NPPES is 3691 Ridge Mill Dr, Hilliard, OH 43026-7752.
- What is Mariel Mcguiness's phone number?
- The practice phone number listed in the NPPES registry for Mariel Mcguiness is (614) 293-5123.
- Does Mariel Mcguiness accept Medicare?
- Mariel Mcguiness is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mariel Mcguiness's NPI active?
- Yes — Mariel Mcguiness's NPI (1356978399) is active in the NPPES registry as of the last update on 2026-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.