Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARK ALAN GELLASCH PHYSICIAN ASSISTANT
NPI 1902876931
Physician Assistant - Medical in Norfolk, VA

Q: What is Mark Gellasch's NPI number?

The NPI number for Mark Gellasch is 1902876931. It was assigned to this individual provider in the NPPES registry on January 24, 2006.

Q: What is Mark Gellasch's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Q: When was this NPI record last updated?

The NPPES record for Mark Gellasch was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 26 days 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 January 24, 2006

BRANCH MEDICAL CLINIC NORFOLK, 1721 TAUSSIG BLVD, NORFOLK, VA 23511(757) 314-6377 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Mark Alan Gellasch Physician Assistant NPPES

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

MARK ALAN GELLASCH PHYSICIAN ASSISTANT (NPI 1902876931) is an individual medical provider in Norfolk, Virginia, licensed in Virginia (0110000034) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1902876931

Entity TypeIndividualMale

Primary Taxonomy363AM0700X

Provider Legal NameMARK ALAN GELLASCHCredential: PHYSICIAN ASSISTANT

Location AddressBRANCH MEDICAL CLINIC NORFOLK, 1721 TAUSSIG BLVDNorfolk, VA 23511

Mailing Address2753 Sandpiper RdVirginia Beach, VA 23456-4516 · (757) 426-7700

Phone(757) 314-6377

Sole ProprietorNo

Enumeration DateJanuary 24, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1902876931 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363AM0700X

License✔ Licensed in VA · 0110000034

BRANCH MEDICAL CLINIC NORFOLK, Norfolk, VA 23511

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Other Identifiers 2

Other0110000034VA · State Medical Licence

Other1003448National Certification

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 Mark Gellasch's NPI number?

The NPI number for Mark Gellasch is 1902876931. It was assigned to this individual provider in the NPPES registry on January 24, 2006.

Where is Mark Gellasch located?

Mark Gellasch practices at Branch Medical Clinic Norfolk 1721 Taussig Blvd, Norfolk, VA 23511. The listed phone number is (757) 314-6377.

What is Mark Gellasch's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

When was this NPI record last updated?

The NPPES record for Mark Gellasch was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 26 days 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.