NPPES file of Aug 9, 2026

John Martin Chamberlain, PH.D.

Clinical Psychologist · Silver Spring, MD

John Martin Chamberlain, PH.D. is a clinical psychologist with a practice address in Silver Spring, Maryland, and NPI 1114137098, issued on May 22, 2007. Check the license (Maryland 3623, as entered in NPPES) with the Maryland board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1114137098
Name
John Martin Chamberlain
Credential
PH.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License numbers
3623 MD
PSY1000161 DC
Self-reported in NPPES; status is on the state search
Practice location
8720 Georgia Ave, Silver Spring, MD 20910
Phone
(301) 495-0266
Enumerated
May 22, 2007
Record last updated
Oct 14, 2010 (not updated in 16 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 8720 Georgia Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Elizabeth Aparicio, MSWClinical Social Worker1093903064
  2. Samara Belman, PH.D.Psychologist1023073996
  3. Beth Betman, PH.D., LCSW-CClinical Social Worker1326421991
  4. Mark Bottinick, LCSW-CClinical Social Worker1912060666
  5. Julia CaruanaMarriage & Family Therapist1659790764
  6. Susan Drumheller, PH.D.Clinical Psychologist1285836031

Verify John Martin Chamberlain in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license 3623
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Maryland license search

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89 clinical psychologist records list a practice address in Silver Spring

They are 89 of the 6,531 NPPES records with a practice address in Silver Spring, and 1,499 clinical psychologist records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other clinical psychologist records in Maryland

  1. Rachel Aaron, PHDBaltimore, MD1003294232
  2. Adriana Abadi, PSYDBethesda, MD1396534293
  3. Rebecca Abell, PSY.D.Kensington, MD1184075822
  4. Ariella Abraham, PSY.D.Lutherville, MD1629214671
  5. Munazza Abraham, PHDBaltimore, MD1922831361
  6. Sherri Abraham, PSYDOwings Mills, MD1427134642
  7. Alexander Abramowicz, PSYDAnnapolis, MD1558973503
  8. Karen Abrams, PHDKensington, MD1639517014
  9. Elise Abromson, PSY.D.Frederick, MD1194906180
  10. Amy Ackerman, PHDAnnapolis, MD1871257774

Common questions

What is John Martin Chamberlain, PH.D.'s NPI number?

John Martin Chamberlain, PH.D.'s National Provider Identifier (NPI) is 1114137098, issued on May 22, 2007. An NPI identifies a provider in billing; it is not a license.

Where is John Martin Chamberlain, PH.D. located?

The NPPES record lists a practice address at 8720 Georgia Ave, Silver Spring, MD, 20910. Phone: (301) 495-0266. Providers update this record themselves, so call before visiting.

How can I verify John Martin Chamberlain, PH.D.'s license?

NPPES lists Maryland license number 3623, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.