What is Mary Gwin's NPI number?

Mary Gwin's National Provider Identifier (NPI) is 1346942943, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mary Gwin's specialty?

Mary Gwin is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).

Where is Mary Gwin located?

Mary Gwin's practice location on file with NPPES is 3333 Burnet Avenue, Cincinnati, OH 45229-3039.

What is Mary Gwin's phone number?

The practice phone number listed in the NPPES registry for Mary Gwin is (513) 636-4315.

Is Mary Gwin's NPI active?

Yes — Mary Gwin's NPI (1346942943) is active in the NPPES registry as of the last update on 2026-04-07.

IndividualActive

Mary Gwin, MD

NPI 1346942943 · Pediatrics Physician · Cincinnati, OH

Mary Gwin, MD is a Pediatrics Physician provider in Cincinnati, OH (NPI 1346942943).

Provider details

NPI number: 1346942943
Entity type: Individual
Primary specialty: Pediatrics PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Pediatrics PhysicianPrimary208000000XLicense 35.155636 (OH)
Allopathic & Osteopathic Physicians
Student in an Organized Health Care Education/Training Program390200000X
Student, Health Care

Profile Score

Established profile(52/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
3 yrs in NPPES 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

3333 Burnet Avenue

Mlc 5018

Cincinnati, OH 45229-3039

Phone: (513) 636-4315

Street-level locationGet directions

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Mailing address