TIFFANY MARIE GUGLIELMELLI FNP-BC
NPI 1346618733
Registered Nurse in Arlington, VA

Q: What is Tiffany Guglielmelli's NPI number?

The NPI number for Tiffany Guglielmelli is 1346618733. It was assigned to this individual provider in the NPPES registry on September 2, 2015.

Q: What is Tiffany Guglielmelli's specialty?

The primary specialty registered for this NPI is Registered Nurse with taxonomy code 163W00000X.

Active since September 02, 2015PECOS EnrolledAccepts Medicare Assignment

1635 N GEORGE MASON DR STE 480, ARLINGTON, VA 22205(703) 248-0111(703) 248-0046 Get Directions Write a Review

NPPES record last updated: December 22, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 25, 2022, Aug 22, 2016 (2 updates tracked since 2016).

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About Tiffany Marie Guglielmelli Fnp-bc NPPES

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

TIFFANY MARIE GUGLIELMELLI FNP-BC (NPI 1346618733) is an individual registered nurse in Arlington, Virginia, licensed in District Of Columbia (RN1014316) and active in the NPI registry since September 2015. She is enrolled in Medicare PECOS, is affiliated with Virginia Hospital Center, and is a graduate of Georgetown University School Of Medicine (2015).

NPPES Registry Identity

NPI1346618733

Entity TypeIndividualFemale

Primary Taxonomy163W00000X

Provider Legal NameTIFFANY MARIE GUGLIELMELLICredential: FNP-BC

Location Address1635 N GEORGE MASON DR STE 480Arlington, VA 22205-3676

Mailing Address1635 N George Mason Dr Ste 480Arlington, VA 22205-3676 · (703) 248-0111 · Fax (703) 248-0046

Phone(703) 248-0111

Fax(703) 248-0046

Sole ProprietorNo

Medical School CMSGeorgetown University School Of MedicineGraduated 2015

Enumeration DateSeptember 2, 2015

Last NPPES UpdateDecember 22, 20232 updates tracked since enumeration

NPPES CertifiedDecember 22, 2023

✔ NPI 1346618733 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRegistered NurseNursing Service Providers

Taxonomy Code163W00000X

Licenses✔ Licensed in DC · RN1014316✔ Licensed in VA · 00011250395

Definition

(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive either a diploma from a hospital program, an associate degree in nursing (A.D.N.) or a Bachelor of Science degree in nursing (B.S.N.), who is licensed or certified by the state, and is practicing within the scope of that license or certification. R.N.'s assist patient in recovering and maintaining their physical or mental health. They assist physicians during treatments and examinations and administer medications. (2) A provider who is trained and educated in a formal nursing education program at an accredited school of nursing, passes a national certification examination, and is licensed by the state to practice nursing. The individual provides nursing services to patients or clients in areas such as health promotion, disease prevention, acute and chronic care and restoration and maintenance of health across the life span.

Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License AC001605 (MD), 0024183804 (VA)

1635 N GEORGE MASON DR STE 480, Arlington, VA 22205

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Tiffany Marie Guglielmelli Fnp-bc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7810284445

PECOS Enrollment IDI20250811000162

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Tiffany Guglielmelli reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Virginia Hospital Center Physician Group, LLC

Same address

Maternal & Fetal Medicine

1635 N GEORGE MASON DR, SUITE 190
Arlington, VA 22205

Reassigned Medicare billing, District of Columbia enrollment
436 clinicians in this Medicare group

NPI 1144415480 (703) 558-6077

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Virginia Hospital Center

Acute Care Hospitals · Arlington, VA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490050

Location1701 North George Mason DriveArlington, VA 22205 · Arlington County

Emergency services Birthing friendly

Other Providers at the Same Location NPPES 2

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

VIRGINIA NEUROSURGEONS, PC

Neurological Surgery

1635 N GEORGE MASON DR STE 480
ARLINGTON, VA 22205

Arlington County (703) 248-0111

NEUROVIRGINIA, PLC

Neurological Surgery

1635 N GEORGE MASON DR STE 480
ARLINGTON, VA 22205

Arlington County (703) 248-0111

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 Tiffany Guglielmelli's NPI number?

The NPI number for Tiffany Guglielmelli is 1346618733. It was assigned to this individual provider in the NPPES registry on September 2, 2015.

Where is Tiffany Guglielmelli located?

Tiffany Guglielmelli practices at 1635 N George Mason Dr Ste 480, Arlington, VA 22205. The listed phone number is (703) 248-0111.

What is Tiffany Guglielmelli's specialty?

The primary specialty registered for this NPI is Registered Nurse with taxonomy code 163W00000X.

Is Tiffany Guglielmelli enrolled in Medicare?

Yes. Tiffany Guglielmelli is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Tiffany Guglielmelli's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tiffany Guglielmelli reassigns Medicare benefits to Virginia Hospital Center Physician Group, LLC (Arlington, VA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Tiffany Guglielmelli's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Tiffany Guglielmelli affiliated with any hospitals?

According to CMS data, Tiffany Guglielmelli is affiliated with Virginia Hospital Center.

When was this NPI record last updated?

The NPPES record for Tiffany Guglielmelli was last updated on December 22, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.