DR. LILLIAN COMAS-DIAZ PH.D.
NPI 1851512792
Psychologist - Clinical in Washington, DC

Q: What is Lillian Comas-diaz's NPI number?

The NPI number for Lillian Comas-diaz is 1851512792. It was assigned to this individual provider in the NPPES registry on May 1, 2007.

Q: What is Lillian Comas-diaz's specialty?

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

Q: Is Lillian Comas-diaz enrolled in Medicare?

No. Lillian Comas-diaz has opted out of Medicare through January 17, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Active since May 01, 2007Opted out of Medicare · through Jan 17, 2028

908 NEW HAMPSHIRE AVE NW, SUITE 700, WASHINGTON, DC 20037(202) 775-1938 Get Directions Write a Review

NPPES record last updated: January 17, 2014. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Lillian Comas-diaz Ph.d. NPPES

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

DR. LILLIAN COMAS-DIAZ PH.D. (NPI 1851512792) is an individual clinical provider in Washington, District Of Columbia, licensed in District Of Columbia (PSY1342) and active in the NPI registry since May 2007. She has opted out of Medicare through January 17, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1851512792

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameDR. LILLIAN COMAS-DIAZCredential: PH.D.

Location Address908 NEW HAMPSHIRE AVE NW, SUITE 700Washington, DC 20037-2346

Mailing Address908 New Hampshire Ave Nw, Suite 700Washington, DC 20037-2346 · (202) 775-1938

Phone(202) 775-1938

Sole ProprietorNo

Enumeration DateMay 1, 2007

Last NPPES UpdateJanuary 17, 2014

✔ NPI 1851512792 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in DC · PSY1342

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.

Also ListedPsychologist · Cognitive & BehavioralTaxonomy 103TB0200X · License PSY1342 (DC)

908 NEW HAMPSHIRE AVE NW, Washington, DC 20037

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Lillian Comas-diaz Ph.d. 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 January 17, 2014 through January 17, 2028.

Opt-Out Effective DateJanuary 17, 2014

Opt-Out In Effect ThroughJanuary 17, 2028Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20037 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$194.86 typical visit price

range $65.18 – $194.86

Typical copayment $48.71 (range $16.29 – $48.71)

Most-billed visit code 99205

Established Patient

$113.72 typical visit price

range $21.40 – $158.88

Typical copayment $28.43 (range $5.35 – $39.72)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

ROBERT L FENTON M.S.W.

Social Worker (Clinical)

908 NEW HAMPSHIRE AVE NW, SUITE 603
WASHINGTON, DC 20037

District of Columbia (202) 296-6997

NADER REZVANI D.D.S.

Dentist

908 NEW HAMPSHIRE AVE NW, SUITE # 301
WASHINGTON, DC 20037

District of Columbia (202) 457-0070

ROSINA CABO RPA-C

Physician Assistant (Medical)

908 NEW HAMPSHIRE AVE NW, SUITE #200
WASHINGTON, DC 20037

District of Columbia (202) 833-5055

DR. ANDREA LEONARD-SEGAL

Internal Medicine (Rheumatology)

908 NEW HAMPSHIRE AVE NW, SUITE 200
WASHINGTON, DC 20037

District of Columbia (202) 833-5055

DR. DEIRDRE ORCEYRE N.D., MSOM, LAC

Naturopath

908 NEW HAMPSHIRE AVE NW, GW CENTER FOR INTEGRATIVE MEDICINE SUITE 200
WASHINGTON, DC 20037

District of Columbia (202) 833-5055

MCDERMOTT-SITZMAN ASSOC., PC

Psychologist

908 NEW HAMPSHIRE AVE NW, SUITE 303
WASHINGTON, DC 20037

District of Columbia (202) 293-3044

DR. CATHI SITZMAN PH.D.

Psychologist

908 NEW HAMPSHIRE AVE NW, SUITE 303
WASHINGTON, DC 20037

District of Columbia (202) 293-3044

PARTNERS FOR HEALTH

Specialist

908 NEW HAMPSHIRE AVE NW, SUITE 200
WASHINGTON, DC 20037

District of Columbia (202) 833-5055

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 Lillian Comas-diaz's NPI number?

The NPI number for Lillian Comas-diaz is 1851512792. It was assigned to this individual provider in the NPPES registry on May 1, 2007.

Where is Lillian Comas-diaz located?

Lillian Comas-diaz practices at 908 New Hampshire Ave NW Suite 700, Washington, DC 20037. The listed phone number is (202) 775-1938.

What is Lillian Comas-diaz's specialty?

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

Is Lillian Comas-diaz enrolled in Medicare?

No. Lillian Comas-diaz has opted out of Medicare through January 17, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Lillian Comas-diaz was last updated on January 17, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.