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

DR. MARIETTA F GRUNDLEHNER MD
NPI 1740288315
Specialist in Fairfax, VA

Active since July 08, 2005
3700 JOSEPH SIEWICK DR, #305, FAIRFAX, VA 22033(703) 476-1740(703) 476-6432 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Marietta F Grundlehner Md NPPES

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

DR. MARIETTA F GRUNDLEHNER MD (NPI 1740288315) is an individual specialist in Fairfax, Virginia, licensed in Virginia (0101032626) and active in the NPI registry since July 2005.

NPPES Registry Identity

NPI1740288315
Entity TypeIndividualFemale
Primary Taxonomy174400000X
Provider Legal NameDR. MARIETTA F GRUNDLEHNERCredential: MD
Location Address3700 JOSEPH SIEWICK DR, #305Fairfax, VA 22033-1744
Mailing Address3700 Joseph Siewick Dr, #305Fairfax, VA 22033-1744 · (703) 476-1740 · Fax (703) 476-6432
Phone(703) 476-1740
Fax(703) 476-6432
Sole ProprietorNo
Enumeration DateJuly 8, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1740288315 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in VA · 0101032626
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
3700 JOSEPH SIEWICK DR, Fairfax, VA 22033
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DAVID PAUL SIBLEY D.D.S.
Dentist (General Practice)
3700 JOSEPH SIEWICK DR, SUITE #307
FAIRFAX, VA 22033
Fairfax County (703) 715-9227
MS. KRISTIN DERMODY MAGGI PA-C
Physician Assistant (Medical)
3700 JOSEPH SIEWICK DR, SUITE 308
FAIRFAX, VA 22033
Fairfax County (703) 698-8960
WASEEM ISMAIL AZIZ MD
Internal Medicine (Gastroenterology)
3700 JOSEPH SIEWICK DR, SUITE 401
FAIRFAX, VA 22033
Fairfax County (703) 281-1023
JYOTHI GADDE MD PA
Specialist
3700 JOSEPH SIEWICK DR, STE 304
FAIRFAX, VA 22033
Fairfax County (703) 648-0015
GASTROINTESTINAL MEDICINE ASSOCIATES, PC
Clinic/Center (Medical Specialty)
3700 JOSEPH SIEWICK DR, SUITE 401
FAIRFAX, VA 22033
Fairfax County (703) 281-1023
DR. PETER L SCUDERA M.D.
Internal Medicine (Gastroenterology)
3700 JOSEPH SIEWICK DR, SUITE 308
FAIRFAX, VA 22033
Fairfax County (703) 698-8960
NOVA WOUND CARE, P.C.
Family Medicine
3700 JOSEPH SIEWICK DR, 303
FAIRFAX, VA 22033
Fairfax County (703) 664-8025
HERCHARAN KAUR SETHI M.D. P.C.
Obstetrics & Gynecology
3700 JOSEPH SIEWICK DR
FAIRFAX, VA 22033
Fairfax County (703) 476-5200

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 Marietta Grundlehner's NPI number?

The NPI number for Marietta Grundlehner is 1740288315. It was assigned to this individual provider in the NPPES registry on July 8, 2005.

Where is Marietta Grundlehner located?

Marietta Grundlehner practices at 3700 Joseph Siewick Dr #305, Fairfax, VA 22033. The listed phone number is (703) 476-1740.

What is Marietta Grundlehner's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

When was this NPI record last updated?

The NPPES record for Marietta Grundlehner 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 29 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.