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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.

MS. BLAKELY ELIZABETH MULDER PHD
NPI 1629698683
Psychologist - Clinical in Arlington, VA

Active since April 20, 2020Opted out of Medicare · through Nov 3, 2027
1220 N FILLMORE ST STE 345, ARLINGTON, VA 22201(703) 988-6861 Get Directions Write a Review

NPPES record last updated: August 14, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Aug 14, 2026, Apr 20, 2020 (2 updates tracked since 2020).

About Ms. Blakely Elizabeth Mulder Phd NPPES

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

MS. BLAKELY ELIZABETH MULDER PHD (NPI 1629698683) is an individual clinical provider in Arlington, Virginia, licensed in Virginia (0810008113) and active in the NPI registry since April 2020. She has opted out of Medicare through November 3, 2027 and maintains a secondary practice location in Chantilly.

NPPES Registry Identity

NPI1629698683
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameMS. BLAKELY ELIZABETH MULDERCredential: PHD
Location Address1220 N FILLMORE ST STE 345Arlington, VA 22201-6501
Mailing Address1220 N Fillmore St Ste 345Arlington, VA 22201-6501 · (703) 988-6861
Phone(703) 988-6861
Sole ProprietorNo
Enumeration DateApril 20, 2020
Last NPPES UpdateAugust 14, 20262 updates tracked since enumeration
NPPES CertifiedAugust 14, 2026
✔ NPI 1629698683 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in VA · 0810008113
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
1220 N FILLMORE ST STE 345, Arlington, VA 22201
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Secondary Practice Location 1

Location 114110 Robert Paris CtChantilly, VA 20151-4205 · Phone (703) 378-7998

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Ms. Blakely Elizabeth Mulder Phd has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from November 3, 2021 through November 3, 2027.

Opt-Out Effective DateNovember 3, 2021
Opt-Out In Effect ThroughNovember 3, 2027Opt-out affidavits renew automatically every two years unless cancelled

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.

MICHELLE FITZGERALD LICSW, LCSW, MSW
Social Worker (Clinical)
1220 N FILLMORE ST STE 345
ARLINGTON, VA 22201
Arlington County (202) 905-7278
DR. FEVEN FISSEHA PHD
Psychologist (Clinical)
1220 N FILLMORE ST STE 345
ARLINGTON, VA 22201
Arlington County (703) 988-6861

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 Blakely Mulder's NPI number?

The NPI number for Blakely Mulder is 1629698683. It was assigned to this individual provider in the NPPES registry on April 20, 2020.

Where is Blakely Mulder located?

Blakely Mulder practices at 1220 N Fillmore St Ste 345, Arlington, VA 22201. The listed phone number is (703) 988-6861.

What is Blakely Mulder's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Blakely Mulder enrolled in Medicare?

No. Blakely Mulder has opted out of Medicare through November 3, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Blakely Mulder was last updated on August 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.