Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jenna Marie Daffer, NP

Q: What is the NPI number for Jenna Daffer?

The National Provider Identifier (NPI) for Jenna Daffer is 1215569942, a Type 1 (individual) record in the CMS NPPES registry.

Acute Care Nurse Practitioner in Arlington, VA · enumerated 2020.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1215569942

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Registry record

Entity type Individual (Type 1)

Name Jenna Marie Daffer

Credential NP

Sex Female

Practice address 1100 N Glebe Rd Ste 1600, Arlington, VA, 22201

Phone (571) 350-8400

Fax (703) 528-0338

Enumeration date Feb 11, 2020

Last updated in NPPES Jan 30, 2025

Taxonomy & licenses

363LA2100X Acute Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 2019047604 (PA) Secondary

363LA2100X Acute Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0024186450 (VA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
30015880020002	Medicaid	VA	-
0870-0092	Other	VA	CAREFIRST BCBS
2384961	Other	VA	CIGNA

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Jenna Daffer?

The National Provider Identifier (NPI) for Jenna Daffer is 1215569942, a Type 1 (individual) record in the CMS NPPES registry.

Where does Jenna Daffer practice?

The practice location on file with NPPES is in Arlington, VA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Patricia Rodriguez Hematology & Oncology Physician · Arlington, VA NPI 1265497861 Robert Christie Hematology & Oncology Physician · Arlington, VA NPI 1922063437 John Feigert Hematology & Oncology Physician · Arlington, VA NPI 1033174560 Keeran Sampat Hematology & Oncology Physician · Arlington, VA NPI 1518103811 Isabelle Le Hematology & Oncology Physician · Arlington, VA NPI 1588807721 Kathleen Witkowski Adult Health Nurse Practitioner · Arlington, VA NPI 1841546983 Tina Roy Hematology & Oncology Physician · Arlington, VA NPI 1780144766 Michelle St John Genetic Counselor (M.S.) · Arlington, VA NPI 1871223586

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-30.