What is James Mayo's NPI number?

James Mayo's National Provider Identifier (NPI) is 1922139476, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is James Mayo's specialty?

James Mayo is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).

Where is James Mayo located?

James Mayo's practice location on file with NPPES is 8540 Alessandria Ct, Naples, FL 34114-2703.

What is James Mayo's phone number?

The practice phone number listed in the NPPES registry for James Mayo is (231) 409-9880.

Is James Mayo's NPI active?

Yes — James Mayo's NPI (1922139476) is active in the NPPES registry as of the last update on 2026-05-24.

IndividualActive

James Mayo, M.D.

NPI 1922139476 · Obstetrics & Gynecology Physician · Naples, FL

James Mayo, M.D. is a Obstetrics & Gynecology Physician provider in Naples, FL (NPI 1922139476).

Provider details

NPI number: 1922139476
Entity type: Individual
Primary specialty: Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: Yes
License: 4301030743 (MI)

Specialties & taxonomies

Obstetrics & Gynecology PhysicianPrimary207V00000XLicense 4301030743 (MI)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(89/100 index)

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

8540 Alessandria Ct

Naples, FL 34114-2703

Phone: (231) 409-9880

Street-level locationGet directions

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Mailing address