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ALEXANDER S. ISAAC M.D.
NPI 1861428054
Psychiatry & Neurology - Psychiatry in Washington, DC

Active since June 23, 2006
209 PENNSYLVANIA AVE SE, 229I, WASHINGTON, DC 20003(703) 698-0716 Get Directions Write a Review

NPPES record last updated: March 7, 2013. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Alexander S. Isaac M.d. NPPES

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

ALEXANDER S. ISAAC M.D. (NPI 1861428054) is an individual psychiatry provider in Washington, District Of Columbia, licensed in Virginia (0101234806) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1861428054
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameALEXANDER S. ISAACCredential: M.D.
Location Address209 PENNSYLVANIA AVE SE, 229IWashington, DC 20003-1107
Mailing Address209 Pennsylvania Ave Se, 229iWashington, DC 20003-1107 · (703) 698-0716
Phone(703) 698-0716
Sole ProprietorYes
Enumeration DateJune 23, 2006
Last NPPES UpdateMarch 7, 2013
✔ NPI 1861428054 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in VA · 0101234806
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
Also ListedPsychiatry & Neurology · NeurologyTaxonomy 2084N0400X · License 0101234806 (VA)
209 PENNSYLVANIA AVE SE, Washington, DC 20003
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Other Identifiers 4

Medicare UPIN011839165VA
Medicare PINP00268724GA
Medicare UPINH85546
Medicare PIN011839I65DC

Other Providers at the Same Location NPPES

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

DR. JOHANNA SARA KAPLAN PH.D.
Psychologist (Clinical Child & Adolescent)
209 PENNSYLVANIA AVE SE, SUITE 509
WASHINGTON, DC 20003
District of Columbia (202) 768-6494

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 Alexander Isaac's NPI number?

The NPI number for Alexander Isaac is 1861428054. It was assigned to this individual provider in the NPPES registry on June 23, 2006.

Where is Alexander Isaac located?

Alexander Isaac practices at 209 Pennsylvania Ave SE 229I, Washington, DC 20003. The listed phone number is (703) 698-0716.

What is Alexander Isaac's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

When was this NPI record last updated?

The NPPES record for Alexander Isaac was last updated on March 7, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.