NPPES file of Aug 9, 2026

Robert Douglas Mendenhall, M.D.

Child & Adolescent Psychiatry Physician · Boston, MA

Robert Douglas Mendenhall, M.D. is a child & adolescent psychiatry physician with a practice address in Boston, Massachusetts, and NPI 1447691332, issued on Jul 9, 2013. Check the license (Massachusetts 256155, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; 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
1447691332
Name
Robert Douglas Mendenhall
Credential
M.D.
Primary taxonomy
Child & Adolescent Psychiatry Physician 2084P0804X
License numbers
256155 MA
142314 CA
Self-reported in NPPES; status is on the state search
Practice location
800 Washington St, Boston, MA 02111
Phone
(617) 636-0219
Enumerated
Jul 9, 2013
Record last updated
Oct 2, 2016 (not updated in 10 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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8 nearest child & adolescent psychiatry physician records → All 336 in Massachusetts → Look up another NPI →

Also registered at 800 Washington St

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

  1. Jeffrey Aalberg, MD, MPHSurgery Physician1326788027
  2. Omer Abbak, PHARMDPharmacist1114500337
  3. Aya Abdelnaser, MDStudent in an Organized Health Care Education/Training Program1770425373
  4. Marie Elise Abi Antoun, MDObstetrics & Gynecology Physician1356042626
  5. Ahmad AboalfarajSurgery Physician1538517651
  6. Tala Abu Samaan, MDStudent in an Organized Health Care Education/Training Program1376386250

Verify Robert Douglas Mendenhall in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 256155    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
Open the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Robert Douglas Mendenhall among 336 child & adolescent psychiatry physician records in Massachusetts

Robert Douglas Mendenhall, M.D. is one of 336 child & adolescent psychiatry physician records with a practice address in Massachusetts. 51% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2013, is newer than 78% of them.

  • NPI issued2013 · 78% of these records are older, 21% newer
  • In a Medicare fileNo · 51% of these records are
  • In the CMS Doctors and Clinicians fileNo · 29% of these records are
  • Record last updated2016 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Child & Adolescent Psychiatry Physician providers in Massachusetts

There are 336 child & adolescent psychiatry physician records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 336 in Massachusetts → Every provider in Boston → Child & Adolescent Psychiatry Physician nationwide →

The 8 child & adolescent psychiatry physician records with the nearest ZIP codes

  1. Christopher Bellonci, M.D.Boston, MA 021111700976271
  2. Audrey Dimauro, M.D.Boston, MA 021111871941039
  3. Taylor Dodds, MDBoston, MA 021111366009987
  4. Munya Hayek, M.DBoston, MA 021111740512185
  5. Sharon Jose, MDBoston, MA 021111265638589
  6. John KekuBoston, MA 021111598392128
  7. Michaela Margolis, DOBoston, MA 021111134744329
  8. Charles Moore, M.D.Boston, MA 021111861408460

Common questions

What is Robert Douglas Mendenhall, M.D.'s NPI number?

Robert Douglas Mendenhall, M.D.'s National Provider Identifier (NPI) is 1447691332, issued on Jul 9, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Robert Douglas Mendenhall, M.D. located?

The NPPES record lists a practice address at 800 Washington St, Boston, MA, 02111. Phone: (617) 636-0219. Providers update this record themselves, so call before visiting.

How can I verify Robert Douglas Mendenhall, M.D.'s license?

NPPES lists Massachusetts license number 256155, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.