DR. JAMES GREGORY TAPPAN M.D.
NPI 1801880398
Obstetrics & Gynecology in San Mateo, CA

Q: What is James Tappan's NPI number?

The NPI number for James Tappan is 1801880398. It was assigned to this individual provider in the NPPES registry on September 12, 2005.

Q: What is James Tappan's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Q: When was this NPI record last updated?

The NPPES record for James Tappan was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 12, 2005

20 W 3RD AVE, SUITE 602, SAN MATEO, CA 94402(650) 347-5065(650) 348-3425 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 7, 2023, Feb 17, 2016 (2 updates tracked since 2016).

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About Dr. James Gregory Tappan M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JAMES GREGORY TAPPAN M.D. (NPI 1801880398) is an individual obstetrics & gynecology provider in San Mateo, California, licensed in California (A23884) and active in the NPI registry since September 2005.

NPPES Registry Identity

NPI1801880398

Entity TypeIndividualMale

Primary Taxonomy207V00000X

Provider Legal NameDR. JAMES GREGORY TAPPANCredential: M.D.

Location Address20 W 3RD AVE, SUITE 602San Mateo, CA 94402-7112

Mailing Address20 W 3rd Ave, Suite 602San Mateo, CA 94402-7112 · (650) 347-5065 · Fax (650) 348-3425

Phone(650) 347-5065

Fax(650) 348-3425

Sole ProprietorYes

Enumeration DateSeptember 12, 2005

Last NPPES UpdateMarch 7, 20232 updates tracked since enumeration

✔ NPI 1801880398 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

License✔ Licensed in CA · A23884

Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

20 W 3RD AVE, San Mateo, CA 94402

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Other Identifiers 4

MedicaidGR0063440CA

Other94-3061735Federal Tax Id

OtherA23884CA · Medical License

Other05D078482Clia

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is James Tappan's NPI number?

The NPI number for James Tappan is 1801880398. It was assigned to this individual provider in the NPPES registry on September 12, 2005.

Where is James Tappan located?

James Tappan practices at 20 W 3rd Ave Suite 602, San Mateo, CA 94402. The listed phone number is (650) 347-5065.

What is James Tappan's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

When was this NPI record last updated?

The NPPES record for James Tappan was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.