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DR. JOHN MARTIN CHAMBERLAIN PH.D.
NPI 1114137098
Psychologist - Clinical in Silver Spring, MD

Active since May 22, 2007Opted out of Medicare · through Jun 15, 2028
8720 GEORGIA AVE, SUITE 1000, SILVER SPRING, MD 20910(301) 495-0266 Get Directions Write a Review

NPPES record last updated: October 14, 2010. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. John Martin Chamberlain Ph.d. NPPES

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

DR. JOHN MARTIN CHAMBERLAIN PH.D. (NPI 1114137098) is an individual clinical provider in Silver Spring, Maryland, licensed in Maryland (3623) and active in the NPI registry since May 2007. He has opted out of Medicare through June 15, 2028.

NPPES Registry Identity

NPI1114137098
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameDR. JOHN MARTIN CHAMBERLAINCredential: PH.D.
Location Address8720 GEORGIA AVE, SUITE 1000Silver Spring, MD 20910-3638
Mailing Address8720 Georgia Ave, Suite 1000Silver Spring, MD 20910-3638 · (301) 495-0266
Phone(301) 495-0266
Sole ProprietorYes
Enumeration DateMay 22, 2007
Last NPPES UpdateOctober 14, 2010
✔ NPI 1114137098 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
Licenses✔ Licensed in MD · 3623✔ Licensed in DC · PSY1000161
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.
8720 GEORGIA AVE, Silver Spring, MD 20910
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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. John Martin Chamberlain 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 June 15, 2022 through June 15, 2028.

Opt-Out Effective DateJune 15, 2022
Opt-Out In Effect ThroughJune 15, 2028Opt-out affidavits renew automatically every two years unless cancelled

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.

MISS LEIDY MAGDALENA MENA LCMFT
Marriage & Family Therapist
8720 GEORGIA AVE, SUITE 205
SILVER SPRING, MD 20910
Montgomery County (240) 899-2666
DR. SAMARA LYNN BELMAN PH.D.
Psychologist
8720 GEORGIA AVE, 808
SILVER SPRING, MD 20910
Montgomery County (571) 217-7098
ELIZABETH HLAVEK LCPAT, ATR-BC
Counselor (Professional)
8720 GEORGIA AVE, SUITE 706
SILVER SPRING, MD 20910
Montgomery County (443) 540-3143
DR. JENNIFER L. MCCARTNEY PSY.D.
Psychologist (Clinical)
8720 GEORGIA AVE, SUITE 205
SILVER SPRING, MD 20910
Montgomery County (617) 429-5720
ELIZABETH APARICIO MSW
Social Worker (Clinical)
8720 GEORGIA AVE, SUITE 808
SILVER SPRING, MD 20910
Montgomery County (301) 467-5374
CATHERINE ANN LOWRY LCSW-C
Counselor (Mental Health)
8720 GEORGIA AVE, SUITE 808
SILVER SPRING, MD 20910
Montgomery County (301) 589-5089
JOHN P DUGGAN MA, NCC, LCPC, LPC
Counselor (Professional)
8720 GEORGIA AVE, SUITE 500
SILVER SPRING, MD 20910
Montgomery County (202) 374-1000
MS. JENNIFER ALLISON WOFFORD M.S.W., L.C.S.W.-C.
Social Worker (Clinical)
8720 GEORGIA AVE, SUITE 808
SILVER SPRING, MD 20910
Montgomery County (202) 262-4356

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 John Chamberlain's NPI number?

The NPI number for John Chamberlain is 1114137098. It was assigned to this individual provider in the NPPES registry on May 22, 2007.

Where is John Chamberlain located?

John Chamberlain practices at 8720 Georgia Ave Suite 1000, Silver Spring, MD 20910. The listed phone number is (301) 495-0266.

What is John Chamberlain's specialty?

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

Is John Chamberlain enrolled in Medicare?

No. John Chamberlain has opted out of Medicare through June 15, 2028. 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 John Chamberlain was last updated on October 14, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.